def computeLowLevel(input_file, pool, startTime, endTime, namespace=''):
llspace = 'lowlevel.'
rhythmspace = 'rhythm.'
if namespace:
llspace = namespace + '.lowlevel.'
rhythmspace = namespace + '.rhythm.'
rgain, sampleRate, downmix = getAnalysisMetadata(pool)
loader = streaming.EqloudLoader(filename=input_file,
sampleRate=sampleRate,
startTime=startTime,
endTime=endTime,
replayGain=rgain,
downmix=downmix)
lowlevel.compute(loader.audio, loader.audio, pool, startTime, endTime,
namespace)
essentia.run(loader)
# check if we processed enough audio for it to be useful, in particular did
# we manage to get an estimation for the loudness (2 seconds required)
if not pool.containsKey(llspace + "loudness"):
INFO('ERROR: File is too short (< 2sec)... Aborting...')
sys.exit(2)
numOnsets = len(pool[rhythmspace + 'onset_times'])
sampleRate = pool['metadata.audio_properties.analysis_sample_rate']
onset_rate = numOnsets / float(loader.audio.totalProduced()) * sampleRate
pool.set(rhythmspace + 'onset_rate', onset_rate)
def get_file_bpm(audio_path: str):
loader = MonoLoader(filename=audio_path)
rhythm_extractor = RhythmExtractor2013(method="degara")
# code for if using essentia.standard
# slightly less memory effecient
# audio = loader()
# rhythm = rhythm_extractor(audio)
# return rhythm[0]
# code for percival estimator
# pool = essentia.Pool()
# percival_bpm_estimator = PercivalBpmEstimator()
# loader.audio >> rhythm_extractor.signal
# percival_bpm_estimator.bpm >> (pool, 'rhythm')
pool = essentia.Pool()
loader.audio >> rhythm_extractor.signal
rhythm_extractor.ticks >> None
rhythm_extractor.confidence >> None
rhythm_extractor.bpm >> (pool, 'rhythm')
rhythm_extractor.estimates >> None
rhythm_extractor.bpmIntervals >> None
essentia.run(loader)
return pool['rhythm']
def computeBpmHistogram(self, noveltyCurve, frameSize=4, overlap=2,
frameRate=44100./128., window='hann',
zeroPadding=0,
constantTempo=False,
minBpm=30):
pool=Pool()
bpmHist = BpmHistogram(frameRate=frameRate,
frameSize=frameSize,
overlap=overlap,
zeroPadding=zeroPadding,
constantTempo=constantTempo,
windowType='hann',
minBpm=minBpm)
gen = VectorInput(noveltyCurve)
gen.data >> bpmHist.novelty
bpmHist.bpm >> (pool, 'bpm')
bpmHist.bpmCandidates >> (pool, 'bpmCandidates')
bpmHist.bpmMagnitudes >> (pool, 'bpmMagnitudes')
bpmHist.frameBpms >> None #(pool, 'frameBpms')
bpmHist.tempogram >> (pool, 'tempogram')
bpmHist.ticks >> (pool, 'ticks')
bpmHist.ticksMagnitude >> (pool, 'ticksMagnitude')
bpmHist.sinusoid >> (pool, 'sinusoid')
essentia.run(gen)
return pool
def estimate_main_band(infile):
"""
Estimate if this is a low, mid, or high track.
Not _really_ sure if this does what I need it to,
but some quick tests looked right.
"""
loader = streaming.MonoLoader(filename=infile)
framecutter = streaming.FrameCutter()
windowing = streaming.Windowing(type="blackmanharris62")
spectrum = streaming.Spectrum()
freqbands = streaming.FrequencyBands(frequencyBands=[0, 250, 750, 4000])
pool = Pool()
loader.audio >> framecutter.signal
framecutter.frame >> windowing.frame >> spectrum.frame
spectrum.spectrum >> freqbands.spectrum
freqbands.bands >> (pool, 'bands')
run(loader)
sums = np.sum(pool['bands'], axis=0)
band = np.argmax(sums)
if band == 0:
return 'low'
elif band == 1:
return 'mid'
elif band == 2:
return 'high'
def callback(data):
# update audio buffer
buffer[:] = array(unpack('f' * bufferSize, data))
# generate predictions
reset(vimp)
run(vimp)
def get_bpm(file_in):
pool = Pool()
loader = streaming.MonoLoader(filename=file_in)
bt = streaming.RhythmExtractor2013()
bpm_histogram = streaming.BpmHistogramDescriptors()
# BPM histogram output size is 250
centroid = streaming.Centroid(range=250)
loader.audio >> bt.signal
bt.bpm >> (pool, 'bpm')
bt.ticks >> None
bt.confidence >> (pool, 'confidence')
bt.estimates >> None
bt.bpmIntervals >> bpm_histogram.bpmIntervals
bpm_histogram.firstPeakBPM >> (pool, 'bpm_first_peak')
bpm_histogram.firstPeakWeight >> None
bpm_histogram.firstPeakSpread >> None
bpm_histogram.secondPeakBPM >> (pool, 'bpm_second_peak')
bpm_histogram.secondPeakWeight >> None
bpm_histogram.secondPeakSpread >> None
bpm_histogram.histogram >> (pool, 'bpm_histogram')
bpm_histogram.histogram >> centroid.array
centroid.centroid >> (pool, 'bpm_centroid')
run(loader)
return pool['bpm']
def get_key(file_in):
"""
Estimates the key and scale for an audio file.
"""
loader = streaming.MonoLoader(filename=file_in)
framecutter = streaming.FrameCutter()
windowing = streaming.Windowing(type="blackmanharris62")
spectrum = streaming.Spectrum()
spectralpeaks = streaming.SpectralPeaks(orderBy="magnitude",
magnitudeThreshold=1e-05,
minFrequency=40,
maxFrequency=5000,
maxPeaks=10000)
pool = Pool()
hpcp = streaming.HPCP()
key = streaming.Key()
loader.audio >> framecutter.signal
framecutter.frame >> windowing.frame >> spectrum.frame
spectrum.spectrum >> spectralpeaks.spectrum
spectralpeaks.magnitudes >> hpcp.magnitudes
spectralpeaks.frequencies >> hpcp.frequencies
hpcp.hpcp >> key.pcp
key.key >> (pool, 'tonal.key_key')
key.scale >> (pool, 'tonal.key_scale')
key.strength >> (pool, 'tonal.key_strength')
run(loader)
return Key(pool['tonal.key_key'], pool['tonal.key_scale'])
def estimate_key(infile):
"""
Estimates the key and scale for an audio file.
"""
loader = streaming.MonoLoader(filename=infile)
framecutter = streaming.FrameCutter()
windowing = streaming.Windowing(type="blackmanharris62")
spectrum = streaming.Spectrum()
spectralpeaks = streaming.SpectralPeaks(orderBy="magnitude",
magnitudeThreshold=1e-05,
minFrequency=40,
maxFrequency=5000,
maxPeaks=10000)
pool = Pool()
hpcp = streaming.HPCP()
key = streaming.Key()
loader.audio >> framecutter.signal
framecutter.frame >> windowing.frame >> spectrum.frame
spectrum.spectrum >> spectralpeaks.spectrum
spectralpeaks.magnitudes >> hpcp.magnitudes
spectralpeaks.frequencies >> hpcp.frequencies
hpcp.hpcp >> key.pcp
key.key >> (pool, 'tonal.key_key')
key.scale >> (pool, 'tonal.key_scale')
key.strength >> (pool, 'tonal.key_strength')
run(loader)
return Key(pool['tonal.key_key'], pool['tonal.key_scale'])
def computeBpmHistogram(self,
noveltyCurve,
frameSize=4,
overlap=2,
frameRate=44100. / 128.,
window='hann',
zeroPadding=0,
constantTempo=False,
minBpm=30):
pool = Pool()
bpmHist = ess.BpmHistogram(frameRate=frameRate,
frameSize=frameSize,
overlap=overlap,
zeroPadding=zeroPadding,
constantTempo=constantTempo,
windowType='hann',
minBpm=minBpm)
gen = ess.VectorInput(noveltyCurve)
gen.data >> bpmHist.novelty
bpmHist.bpm >> (pool, 'bpm')
bpmHist.bpmCandidates >> (pool, 'bpmCandidates')
bpmHist.bpmMagnitudes >> (pool, 'bpmMagnitudes')
bpmHist.frameBpms >> None #(pool, 'frameBpms')
bpmHist.tempogram >> (pool, 'tempogram')
bpmHist.ticks >> (pool, 'ticks')
bpmHist.ticksMagnitude >> (pool, 'ticksMagnitude')
bpmHist.sinusoid >> (pool, 'sinusoid')
essentia.run(gen)
return pool
def estimate_main_band(infile):
"""
Estimate if this is a low, mid, or high track.
Not _really_ sure if this does what I need it to,
but some quick tests looked right.
"""
loader = streaming.MonoLoader(filename=infile)
framecutter = streaming.FrameCutter()
windowing = streaming.Windowing(type="blackmanharris62")
spectrum = streaming.Spectrum()
freqbands = streaming.FrequencyBands(frequencyBands=[0, 250, 750, 4000])
pool = Pool()
loader.audio >> framecutter.signal
framecutter.frame >> windowing.frame >> spectrum.frame
spectrum.spectrum >> freqbands.spectrum
freqbands.bands >> (pool, 'bands')
run(loader)
sums = np.sum(pool['bands'], axis=0)
band = np.argmax(sums)
if band == 0:
return 'low'
elif band == 1:
return 'mid'
elif band == 2:
return 'high'
def computeSegmentation(filename, pool):
sampleRate = 44100
frameSize = 2048
hopSize = frameSize / 2
audio = EqloudLoader(filename=filename,
downmix=pool['downmix'],
sampleRate=sampleRate)
fc = FrameCutter(frameSize=frameSize, hopSize=hopSize, silentFrames='keep')
w = Windowing(type='blackmanharris62')
spec = Spectrum()
mfcc = MFCC(highFrequencyBound=8000)
tmpPool = essentia.Pool()
audio.audio >> fc.signal
fc.frame >> w.frame >> spec.frame
spec.spectrum >> mfcc.spectrum
mfcc.bands >> (tmpPool, 'mfcc_bands')
mfcc.mfcc >> (tmpPool, 'mfcc_coeff')
essentia.run(audio)
# compute transpose of features array, don't call numpy.matrix.transpose
# because essentia f***s it up!!
features = copy.deepcopy(tmpPool['mfcc_coeff'].transpose())
segments = std.SBic(cpw=1.5, size1=1000, inc1=300, size2=600,
inc2=50)(features)
for segment in segments:
pool.add('segments', segment * hopSize / sampleRate)
def get_bpm(audiofile):
pool = essentia.Pool()
loader = MonoLoader(filename = audiofile)
bt = RhythmExtractor2013()
bpm_histogram = BpmHistogramDescriptors()
centroid = Centroid(range=250) # BPM histogram output size is 250
loader.audio >> bt.signal
bt.bpm >> (pool, 'bpm')
bt.ticks >> None
bt.confidence >> None
bt.estimates >> None
bt.bpmIntervals >> bpm_histogram.bpmIntervals
bpm_histogram.firstPeakBPM >> (pool, 'bpm_first_peak')
bpm_histogram.firstPeakWeight >> None
bpm_histogram.firstPeakSpread >> None
bpm_histogram.secondPeakBPM >> (pool, 'bpm_second_peak')
bpm_histogram.secondPeakWeight >> None
bpm_histogram.secondPeakSpread >> None
essentia.run(loader)
return "BPM:", pool['bpm']
def analysisSynthesisStreaming(params, signal):
out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize = params['frameSize'], hopSize = params['hopSize'], startFromZero = False);
w = es.Windowing(type = "hann");
fft = es.FFT(size = params['frameSize']);
ifft = es.IFFT(size = params['frameSize']);
overl = es.OverlapAdd (frameSize = params['frameSize'], hopSize = params['hopSize'], gain = 1./params['frameSize']);
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize']/2))
insignal = VectorInput (signal)
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> ifft.fft
ifft.frame >> overl.frame
overl.signal >> (pool, 'audio')
essentia.run(insignal)
# remove first half window frames
outaudio = pool['audio']
outaudio = outaudio [2*params['hopSize']:]
return outaudio
def computeLowLevel(input_file, pool, startTime, endTime, namespace=''):
llspace = 'lowlevel.'
rhythmspace = 'rhythm.'
if namespace :
llspace = namespace + '.lowlevel.'
rhythmspace = namespace + '.rhythm.'
rgain, sampleRate, downmix = getAnalysisMetadata(pool)
loader = streaming.EqloudLoader(filename = input_file,
sampleRate = sampleRate,
startTime = startTime,
endTime = endTime,
replayGain = rgain,
downmix = downmix)
lowlevel.compute(loader.audio, loader.audio, pool, startTime, endTime, namespace)
essentia.run(loader)
# check if we processed enough audio for it to be useful, in particular did
# we manage to get an estimation for the loudness (2 seconds required)
if not pool.containsKey(llspace + "loudness"):
INFO('ERROR: File is too short (< 2sec)... Aborting...')
sys.exit(2)
numOnsets = len(pool[rhythmspace + 'onset_times'])
sampleRate = pool['metadata.audio_properties.analysis_sample_rate']
onset_rate = numOnsets/float(loader.audio.totalProduced())*sampleRate
pool.set(rhythmspace + 'onset_rate', onset_rate)
def analSineModelStreaming(params, signal):
#out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize = params['frameSize'], hopSize = params['hopSize'], startFromZero = False);
w = es.Windowing(type = "hann");
fft = es.FFT(size = params['frameSize']);
smanal = es.SineModelAnal(sampleRate = params['sampleRate'], maxnSines = params['maxnSines'], magnitudeThreshold = params['magnitudeThreshold'], freqDevOffset = params['freqDevOffset'], freqDevSlope = params['freqDevSlope'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize']/2))
insignal = VectorInput (signal)
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
essentia.run(insignal)
# remove first half window frames
mags = pool['magnitudes']
freqs = pool['frequencies']
phases = pool['phases']
# remove short tracks
minFrames = int( params['minSineDur'] * params['sampleRate'] / params['hopSize']);
freqsClean = cleaningSineTracks(freqs, minFrames)
pool['frequencies'].data = freqsClean
return mags, freqsClean, phases
def estimate_bpm(infile):
"""
Estimates the BPM for an audio file.
"""
pool = Pool()
loader = streaming.MonoLoader(filename=infile)
bt = streaming.RhythmExtractor2013()
bpm_histogram = streaming.BpmHistogramDescriptors()
centroid = streaming.Centroid(range=250) # BPM histogram output size is 250
loader.audio >> bt.signal
bt.bpm >> (pool, 'bpm')
bt.ticks >> None
bt.confidence >> (pool, 'confidence')
bt.estimates >> None
bt.bpmIntervals >> bpm_histogram.bpmIntervals
bpm_histogram.firstPeakBPM >> (pool, 'bpm_first_peak')
bpm_histogram.firstPeakWeight >> None
bpm_histogram.firstPeakSpread >> None
bpm_histogram.secondPeakBPM >> (pool, 'bpm_second_peak')
bpm_histogram.secondPeakWeight >> None
bpm_histogram.secondPeakSpread >> None
bpm_histogram.histogram >> (pool, 'bpm_histogram')
bpm_histogram.histogram >> centroid.array
centroid.centroid >> (pool, 'bpm_centroid')
run(loader)
return pool['bpm']
def extract_spectral_complexity(file):
print("Extracting spectral complexity...")
pool = essentia.Pool()
loader = MonoLoader(filename=file)
frameCutter = FrameCutter(frameSize=44100 * 20, hopSize=5 * 44100)
w = Windowing(type='hann')
spec = Spectrum()
mfcc = MFCC()
# Pool to store the restults
pool = essentia.Pool()
spectralComplexity = SpectralComplexity()
# Connect the input and outputs
loader.audio >> frameCutter.signal
# Spectral Complexity
frameCutter.frame >> w.frame >> spec.frame
spec.spectrum >> spectralComplexity.spectrum
spectralComplexity.spectralComplexity >> (pool, "spectral complexity")
essentia.run(loader)
df = pd.DataFrame()
df["Sprectral Complexity"] = pool["spectral complexity"]
return df
def analysisSynthesisStreaming(params, signal):
out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="hann")
fft = es.FFT(size=params['frameSize'])
ifft = es.IFFT(size=params['frameSize'])
overl = es.OverlapAdd(frameSize=params['frameSize'],
hopSize=params['hopSize'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize'] / 2))
insignal = VectorInput(signal)
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> ifft.fft
ifft.frame >> overl.frame
overl.signal >> (pool, 'audio')
essentia.run(insignal)
# remove first half window frames
outaudio = pool['audio']
outaudio = outaudio[2 * params['hopSize']:]
return outaudio
def computeSegmentation(filename, pool):
sampleRate = 44100
frameSize = 2048
hopSize = frameSize/2
audio = EqloudLoader(filename = filename,
downmix=pool['downmix'],
sampleRate=sampleRate)
fc = FrameCutter(frameSize=frameSize, hopSize=hopSize, silentFrames='keep')
w = Windowing(type='blackmanharris62')
spec = Spectrum()
mfcc = MFCC(highFrequencyBound=8000)
tmpPool = essentia.Pool()
audio.audio >> fc.signal
fc.frame >> w.frame >> spec.frame
spec.spectrum >> mfcc.spectrum
mfcc.bands >> (tmpPool, 'mfcc_bands')
mfcc.mfcc>> (tmpPool, 'mfcc_coeff')
essentia.run(audio)
# compute transpose of features array, don't call numpy.matrix.transpose
# because essentia f***s it up!!
features = copy.deepcopy(tmpPool['mfcc_coeff'].transpose())
segments = std.SBic(cpw=1.5, size1=1000, inc1=300, size2=600, inc2=50)(features)
for segment in segments:
pool.add('segments', segment*hopSize/sampleRate)
def computeNoveltyCurve(self, filename, frameSize=1024, hopSize=512, windowType='hann',
weightCurveType='inverse_quadratic', sampleRate=44100.0,
startTime=0, endTime=2000):
loader = EasyLoader(filename=filename, startTime=startTime,
endTime=endTime, sampleRate=sampleRate,
downmix='left')
fc = FrameCutter(frameSize=frameSize, hopSize=hopSize,
silentFrames="keep",
startFromZero=False, lastFrameToEndOfFile=True)
window = Windowing(type=windowType, zeroPhase=True,
zeroPadding=1024-frameSize)
freqBands = FrequencyBands(sampleRate=sampleRate) # using barkbands by default
pool = Pool()
spec = Spectrum()
loader.audio >> fc.signal
fc.frame >> window.frame >> spec.frame
spec.spectrum >> freqBands.spectrum
freqBands.bands >> (pool, 'frequency_bands')
essentia.run(loader)
noveltyCurve = std.NoveltyCurve(frameRate=sampleRate/float(hopSize),
weightCurveType=weightCurveType)(pool['frequency_bands'])
return noveltyCurve
def analHpsModelStreaming(params, signal):
#out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
spec = es.Spectrum(size=params['frameSize'])
# pitch detection
pitchDetect = es.PitchYinFFT(frameSize=params['frameSize'],
sampleRate=params['sampleRate'])
smanal = es.HpsModelAnal(sampleRate=params['sampleRate'],
hopSize=params['hopSize'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'],
minFrequency=params['minFrequency'],
maxFrequency=params['maxFrequency'],
stocf=params['stocf'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize'] // 2))
insignal = VectorInput (signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> spec.frame
spec.spectrum >> pitchDetect.spectrum
fcut.frame >> smanal.frame
pitchDetect.pitch >> smanal.pitch
pitchDetect.pitch >> (pool, 'pitch')
pitchDetect.pitchConfidence >> (pool, 'pitchConfidence')
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
smanal.stocenv >> (pool, 'stocenv')
essentia.run(insignal)
# remove first half window frames
mags = pool['magnitudes']
freqs = pool['frequencies']
phases = pool['phases']
pitchConf = pool['pitchConfidence']
# remove short tracks
minFrames = int(params['minSineDur'] * params['sampleRate'] / params['hopSize'])
freqsClean = cleaningHarmonicTracks(freqs, minFrames, pitchConf)
pool['frequencies'].data = freqsClean
return mags, freqsClean, phases
def analHpsModelStreaming(params, signal):
#out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
spec = es.Spectrum(size=params['frameSize'])
# pitch detection
pitchDetect = es.PitchYinFFT(frameSize=params['frameSize'],
sampleRate=params['sampleRate'])
smanal = es.HpsModelAnal(sampleRate=params['sampleRate'],
hopSize=params['hopSize'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'],
minFrequency=params['minFrequency'],
maxFrequency=params['maxFrequency'],
stocf=params['stocf'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize']/2))
insignal = VectorInput (signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> spec.frame
spec.spectrum >> pitchDetect.spectrum
fcut.frame >> smanal.frame
pitchDetect.pitch >> smanal.pitch
pitchDetect.pitch >> (pool, 'pitch')
pitchDetect.pitchConfidence >> (pool, 'pitchConfidence')
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
smanal.stocenv >> (pool, 'stocenv')
essentia.run(insignal)
# remove first half window frames
mags = pool['magnitudes']
freqs = pool['frequencies']
phases = pool['phases']
pitchConf = pool['pitchConfidence']
# remove short tracks
minFrames = int(params['minSineDur'] * params['sampleRate'] / params['hopSize'])
freqsClean = cleaningHarmonicTracks(freqs, minFrames, pitchConf)
pool['frequencies'].data = freqsClean
return mags, freqsClean, phases
def writeBeatFile(filename, pool) :
beatFilename = os.path.splitext(filename)[0] + '_beat.wav' #'out_beat.wav' #
audio = EasyLoader(filename=filename, downmix='mix', startTime=STARTTIME, endTime=ENDTIME)
writer = MonoWriter(filename=beatFilename)
onsetsMarker = AudioOnsetsMarker(onsets=pool['ticks'])
audio.audio >> onsetsMarker.signal >> writer.audio
essentia.run(audio)
return beatFilename
def writeBeatFile(filename, pool) :
beatFilename = os.path.splitext(filename)[0] + '_beat.wav' #'out_beat.wav' #
audio = EasyLoader(filename=filename, downmix='mix', startTime=STARTTIME, endTime=ENDTIME)
writer = MonoWriter(filename=beatFilename)
onsetsMarker = AudioOnsetsMarker(onsets=pool['ticks'])
audio.audio >> onsetsMarker.signal >> writer.audio
essentia.run(audio)
return beatFilename
def analsynthHprModelStreaming(params, signal):
out = array([0.0])
pool = essentia.Pool()
# windowing and FFT
fcut = es.FrameCutter(frameSize=params["frameSize"], hopSize=params["hopSize"], startFromZero=False)
w = es.Windowing(type="blackmanharris92")
spec = es.Spectrum(size=params["frameSize"])
# pitch detection
pitchDetect = es.PitchYinFFT(frameSize=params["frameSize"], sampleRate=params["sampleRate"])
smanal = es.HprModelAnal(
sampleRate=params["sampleRate"],
hopSize=params["hopSize"],
maxnSines=params["maxnSines"],
magnitudeThreshold=params["magnitudeThreshold"],
freqDevOffset=params["freqDevOffset"],
freqDevSlope=params["freqDevSlope"],
minFrequency=params["minFrequency"],
maxFrequency=params["maxFrequency"],
)
synFFTSize = min(params["frameSize"] / 4, 4 * params["hopSize"])
# make sure the FFT size is appropriate
smsyn = es.SprModelSynth(sampleRate=params["sampleRate"], fftSize=synFFTSize, hopSize=params["hopSize"])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params["frameSize"] / 2))
insignal = VectorInput(signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> spec.frame
spec.spectrum >> pitchDetect.spectrum
fcut.frame >> smanal.frame
pitchDetect.pitch >> smanal.pitch
pitchDetect.pitchConfidence >> (pool, "pitchConfidence")
pitchDetect.pitch >> (pool, "pitch")
# synthesis
smanal.magnitudes >> smsyn.magnitudes
smanal.frequencies >> smsyn.frequencies
smanal.phases >> smsyn.phases
smanal.res >> smsyn.res
smsyn.frame >> (pool, "frames")
smsyn.sineframe >> (pool, "sineframes")
smsyn.resframe >> (pool, "resframes")
essentia.run(insignal)
outaudio = framesToAudio(pool["frames"])
outaudio = outaudio[2 * params["hopSize"] :]
return outaudio, pool
def analsynthSineModelStreaming(params, signal):
out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
fft = es.FFT(size=params['frameSize'])
smanal = es.SineModelAnal(sampleRate=params['sampleRate'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'])
smsyn = es.SineModelSynth(sampleRate=params['sampleRate'],
fftSize=params['frameSize'],
hopSize=params['hopSize'])
ifft = es.IFFT(size=params['frameSize'])
overl = es.OverlapAdd(frameSize=params['frameSize'],
hopSize=params['hopSize'],
gain=1. / params['frameSize'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize'] / 2))
insignal = VectorInput(signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
# synthesis
smanal.magnitudes >> smsyn.magnitudes
smanal.frequencies >> smsyn.frequencies
smanal.phases >> smsyn.phases
smsyn.fft >> ifft.fft
ifft.frame >> overl.frame
overl.signal >> (pool, 'audio')
essentia.run(insignal)
# remove short tracks
freqs = pool['frequencies']
minFrames = int(params['minSineDur'] * params['sampleRate'] /
params['hopSize'])
freqsClean = cleaningSineTracks(freqs, minFrames)
pool['frequencies'].data = freqsClean
# remove first half window frames
outaudio = pool['audio']
outaudio = outaudio[2 * params['hopSize']:]
return outaudio, pool
def computeMidLevel(input_file, pool, startTime, endTime, namespace=''):
rgain, sampleRate, downmix = getAnalysisMetadata(pool)
loader = streaming.EqloudLoader(filename=input_file,
sampleRate=sampleRate,
startTime=startTime,
endTime=endTime,
replayGain=rgain,
downmix=downmix)
midlevel.compute(loader.audio, pool, startTime, endTime, namespace)
essentia.run(loader)
def computeMidLevel(input_file, pool, startTime, endTime, namespace=''):
rgain, sampleRate, downmix = getAnalysisMetadata(pool)
loader = streaming.EqloudLoader(filename = input_file,
sampleRate = sampleRate,
startTime = startTime,
endTime = endTime,
replayGain = rgain,
downmix = downmix)
midlevel.compute(loader.audio, pool, startTime, endTime, namespace)
essentia.run(loader)
def callback(data):
buffer[:] = array(unpack('f' * bufferSize, data))
mfccBuffer = np.zeros([numberBands])
reset(vectorInput)
run(vectorInput)
mfccBuffer = np.roll(mfccBuffer, -patchSize)
mfccBuffer = pool['mfcc'][-patchSize]
features = mfccBuffer
features = features.tolist()
return features
def sines(filename, outfile, params):
'''
Extract the sinusoidal components of an audio file
'''
import essentia
from essentia.streaming import (MonoLoader, MonoWriter, FrameCutter,
Windowing, SineModelAnal, SineModelSynth,
FFT, IFFT, OverlapAdd)
loader = MonoLoader(filename=filename, sampleRate=params['sampleRate'])
awrite = MonoWriter(filename=outfile, sampleRate=params['sampleRate'])
fcut = FrameCutter(
frameSize=params['frameSize'], hopSize=params['hopSize'],
startFromZero=False)
overl = OverlapAdd(
frameSize=params['frameSize'],
hopSize=params['hopSize'],
gain=1.0 / params['frameSize'])
w = Windowing(type="blackmanharris92")
fft = FFT(size=params['frameSize'])
ifft = IFFT(size=params['frameSize'])
smanal = SineModelAnal(
sampleRate=params['sampleRate'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'],
minFrequency=params['minFrequency'],
maxFrequency=params['maxFrequency'], )
syn = SineModelSynth(
sampleRate=params['sampleRate'],
fftSize=params['frameSize'],
hopSize=params['hopSize'])
# analysis
loader.audio >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
# synth
smanal.magnitudes >> syn.magnitudes
smanal.frequencies >> syn.frequencies
smanal.phases >> syn.phases
# ifft
syn.fft >> ifft.fft
ifft.frame >> overl.frame
overl.signal >> awrite.audio
essentia.run(loader)
def estimate_danceability(infile):
loader = streaming.MonoLoader(filename=infile)
dance = streaming.Danceability()
pool = Pool()
loader.audio >> dance.signal
dance.danceability >> (pool, 'danceability')
run(loader)
return pool['danceability']
def estimate_danceability(infile):
loader = streaming.MonoLoader(filename=infile)
dance = streaming.Danceability()
pool = Pool()
loader.audio >> dance.signal
dance.danceability >> (pool, 'danceability')
run(loader)
return pool['danceability']
def subtract(filename, outfile, params):
'''
Subtract the sinusoidal components as computed by the sinusoidal model.
'''
import essentia
from essentia.streaming import (MonoLoader, MonoWriter, FrameCutter,
Windowing, SineModelAnal, SineSubtraction,
FFT, VectorInput)
loader = MonoLoader(filename=filename, sampleRate=params['sampleRate'])
awrite = MonoWriter(filename=outfile, sampleRate=params['sampleRate'])
fcut = FrameCutter(
frameSize=params['frameSize'], hopSize=params['hopSize'])
w = Windowing(type="blackmanharris92")
fft = FFT(size=params['frameSize'])
smanal = SineModelAnal(
sampleRate=params['sampleRate'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'],
minFrequency=params['minFrequency'],
maxFrequency=params['maxFrequency'], )
subtrFFTSize = min(params['frameSize'] / 4, 4 * params['hopSize'])
smsub = SineSubtraction(
sampleRate=params['sampleRate'],
fftSize=subtrFFTSize,
hopSize=params['hopSize'])
pool = essentia.Pool()
# analysis
loader.audio >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
# subtraction
fcut.frame >> smsub.frame
smanal.magnitudes >> smsub.magnitudes
smanal.frequencies >> smsub.frequencies
smanal.phases >> smsub.phases
smsub.frame >> (pool, 'frames')
essentia.run(loader)
outaudio = pool['frames'].flatten()
outvector = VectorInput(outaudio)
outvector.data >> awrite.audio
essentia.run(outvector)
def computeBeatsLoudness(filename, pool):
loader = MonoLoader(filename=filename,
sampleRate=pool['samplerate'],
downmix=pool['downmix'])
ticks = pool['ticks']#[pool['bestTicksStart']:pool['bestTicksStart']+32]
beatsLoud = BeatsLoudness(sampleRate = pool['samplerate'],
frequencyBands = barkBands, #EqBands, #scheirerBands, #barkBands,
beats=ticks)
loader.audio >> beatsLoud.signal
beatsLoud.loudness >> (pool, 'loudness')
beatsLoud.loudnessBandRatio >> (pool, 'loudnessBandRatio')
essentia.run(loader)
def computeOnsets(filename, pool):
loader = EasyLoader(filename=filename,
sampleRate=pool['samplerate'],
startTime=STARTTIME, endTime=ENDTIME,
downmix=pool['downmix'])
onset = OnsetRate()
loader.audio >> onset.signal
onset.onsetTimes >> (pool, 'ticks')
onset.onsetRate >> None
essentia.run(loader)
pool.set('size', loader.audio.totalProduced())
pool.set('length', pool['size']/pool['samplerate'])
def run(self):
global frame_g
while not self.stoprequest.isSet():
pool = essentia.Pool()
self.frame_q.get()
v_in2 = VectorInput(frame_g)
onset = OnsetRate()
v_in2.data >> onset.signal
onset.onsetRate >> (pool, 'Rhythm.onsetRate')
onset.onsetTimes >> None
essentia.run(v_in2)
self.result_q.put(pool)
def computeOnsets(filename, pool):
loader = EasyLoader(filename=filename,
sampleRate=pool['samplerate'],
startTime=STARTTIME, endTime=ENDTIME,
downmix=pool['downmix'])
onset = OnsetRate()
loader.audio >> onset.signal
onset.onsetTimes >> (pool, 'ticks')
onset.onsetRate >> None
essentia.run(loader)
pool.set('size', loader.audio.totalProduced())
pool.set('length', pool['size']/pool['samplerate'])
def computeBeatsLoudness(filename, pool):
loader = MonoLoader(filename=filename,
sampleRate=pool['samplerate'],
downmix=pool['downmix'])
ticks = pool['ticks']#[pool['bestTicksStart']:pool['bestTicksStart']+32]
beatsLoud = BeatsLoudness(sampleRate = pool['samplerate'],
frequencyBands = barkBands, #EqBands, #scheirerBands, #barkBands,
beats=ticks)
loader.audio >> beatsLoud.signal
beatsLoud.loudness >> (pool, 'loudness')
beatsLoud.loudnessBandRatio >> (pool, 'loudnessBandRatio')
essentia.run(loader)
def analsynthSpsModelStreaming(params, signal):
out = array([0.])
pool = essentia.Pool()
# windowing and FFT
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
spec = es.Spectrum(size=params['frameSize'])
smanal = es.SpsModelAnal(sampleRate=params['sampleRate'],
hopSize=params['hopSize'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'],
minFrequency=params['minFrequency'],
maxFrequency=params['maxFrequency'],
stocf=params['stocf'])
synFFTSize = min(
int(params['frameSize'] / 4),
4 * params['hopSize']) # make sure the FFT size is appropriate
smsyn = es.SpsModelSynth(sampleRate=params['sampleRate'],
fftSize=synFFTSize,
hopSize=params['hopSize'],
stocf=params['stocf'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize'] // 2))
insignal = VectorInput(signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> smanal.frame
# synthesis
smanal.magnitudes >> smsyn.magnitudes
smanal.frequencies >> smsyn.frequencies
smanal.phases >> smsyn.phases
smanal.stocenv >> smsyn.stocenv
smsyn.frame >> (pool, 'frames')
smsyn.sineframe >> (pool, 'sineframes')
smsyn.stocframe >> (pool, 'stocframes')
essentia.run(insignal)
outaudio = framesToAudio(pool['frames'])
outaudio = outaudio[2 * params['hopSize']:]
return outaudio, pool
def analsynthHarmonicMaskStreaming(params, signal):
out = array([0.])
pool = essentia.Pool()
# windowing and FFT
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
fft = es.FFT(size=params['frameSize'])
spec = es.Spectrum(size=params['frameSize'])
# pitch detection
pitchDetect = es.PitchYinFFT(frameSize=params['frameSize'],
sampleRate=params['sampleRate'])
hmask = es.HarmonicMask(sampleRate=params['sampleRate'],
binWidth=params['binWidth'],
attenuation=params['attenuation_dB'])
ifft = es.IFFT(size=params['frameSize'])
overl = es.OverlapAdd(frameSize=params['frameSize'],
hopSize=params['hopSize'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize'] // 2))
insignal = VectorInput(signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> spec.frame
w.frame >> fft.frame
spec.spectrum >> pitchDetect.spectrum
fft.fft >> hmask.fft
pitchDetect.pitch >> hmask.pitch
pitchDetect.pitchConfidence >> (pool, 'pitchConfidence')
hmask.fft >> ifft.fft
ifft.frame >> overl.frame
overl.signal >> (pool, 'audio')
essentia.run(insignal)
# remove first half window frames
outaudio = pool['audio']
outaudio = outaudio[2 * params['hopSize']:]
return outaudio, pool
def computeMidLevel(input_file, neqPool, eqPool, startTime, endTime, namespace=''):
rgain, sampleRate, downmix = getAnalysisMetadata(neqPool)
loader = streaming.EasyLoader(filename = input_file,
sampleRate = sampleRate,
startTime = startTime,
endTime = endTime,
replayGain = rgain,
downmix = downmix)
eqloud = streaming.EqualLoudness()
loader.audio >> eqloud.signal
midlevel.compute(loader.audio, neqPool, startTime, endTime, namespace)
midlevel.compute(eqloud.signal, eqPool, startTime, endTime, namespace)
essentia.run(loader)
def estimate_chroma(self, uid):
loader = esstr.MonoLoader(
filename=self.audio_path_extractor.audio_path_name(uid))
framecutter = esstr.FrameCutter(hopSize=self.hop_size,
frameSize=self.frame_size)
windowing = esstr.Windowing(type="blackmanharris62")
spectrum = esstr.Spectrum()
spectralpeaks = esstr.SpectralPeaks(orderBy="magnitude",
magnitudeThreshold=1e-05,
minFrequency=40,
maxFrequency=5000,
maxPeaks=10000)
hpcp = esstr.HPCP(size=12,
referenceFrequency=self.tuning_freq,
harmonics=8,
bandPreset=True,
minFrequency=float(40),
maxFrequency=float(5000),
bandSplitFrequency=500.0,
weightType="cosine",
nonLinear=True,
windowSize=1.0)
"""
hpcp = esstr.HPCP(
size=12,
referenceFrequency = tuningFreq,
harmonics = 8,
bandPreset = True,
minFrequency = 40.0,
maxFrequency = 5000.0,
bandSplitFrequency = 250.0,
weightType = "cosine",
nonLinear = False,
windowSize = 1.0)
"""
pool = essentia.Pool()
# connect algorithms together
loader.audio >> framecutter.signal
framecutter.frame >> windowing.frame >> spectrum.frame
spectrum.spectrum >> spectralpeaks.spectrum
spectrum.spectrum >> (pool, 'spectrum.magnitude')
spectralpeaks.magnitudes >> hpcp.magnitudes
spectralpeaks.frequencies >> hpcp.frequencies
hpcp.hpcp >> (pool, 'chroma.hpcp')
essentia.run(loader)
# roll from 'A' based to 'C' based
chroma = pool['chroma.hpcp']
chroma = np.roll(chroma, shift=-3, axis=1)
return chroma
def analsynthHprModelStreaming(params, signal):
out = array([0.])
pool = essentia.Pool()
# windowing and FFT
fcut = es.FrameCutter(frameSize = params['frameSize'], hopSize = params['hopSize'], startFromZero = False);
w = es.Windowing(type = "blackmanharris92");
spec = es.Spectrum(size = params['frameSize']);
# pitch detection
pitchDetect = es.PitchYinFFT(frameSize=params['frameSize'], sampleRate = params['sampleRate'])
smanal = es.HprModelAnal(sampleRate = params['sampleRate'], hopSize = params['hopSize'], maxnSines = params['maxnSines'], magnitudeThreshold = params['magnitudeThreshold'], freqDevOffset = params['freqDevOffset'], freqDevSlope = params['freqDevSlope'], minFrequency = params['minFrequency'], maxFrequency = params['maxFrequency'])
synFFTSize = min(params['frameSize']/4, 4*params['hopSize']); # make sure the FFT size is appropriate
smsyn = es.SprModelSynth(sampleRate = params['sampleRate'], fftSize = synFFTSize, hopSize = params['hopSize'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize']/2))
insignal = VectorInput (signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> spec.frame
spec.spectrum >> pitchDetect.spectrum
fcut.frame >> smanal.frame
pitchDetect.pitch >> smanal.pitch
pitchDetect.pitchConfidence >> (pool, 'pitchConfidence')
pitchDetect.pitch >> (pool, 'pitch')
print freqsClean
# synthesis
smanal.magnitudes >> smsyn.magnitudes
smanal.frequencies >> smsyn.frequencies
smanal.phases >> smsyn.phases
smanal.res >> smsyn.res
smsyn.frame >> (pool, 'frames')
smsyn.sineframe >> (pool, 'sineframes')
smsyn.resframe >> (pool, 'resframes')
essentia.run(insignal)
outaudio = framesToAudio(pool['frames'])
outaudio = outaudio [2*params['hopSize']:]
return outaudio, pool
def analsynthHarmonicMaskStreaming(params, signal):
out = array([0.])
pool = essentia.Pool()
# windowing and FFT
fcut = es.FrameCutter(frameSize = params['frameSize'], hopSize = params['hopSize'], startFromZero = False);
w = es.Windowing(type = "blackmanharris92");
fft = es.FFT(size = params['frameSize']);
spec = es.Spectrum(size = params['frameSize']);
# pitch detection
pitchDetect = es.PitchYinFFT(frameSize=params['frameSize'], sampleRate = params['sampleRate'])
hmask= es.HarmonicMask(sampleRate = params['sampleRate'], binWidth = params['binWidth'], attenuation = params['attenuation_dB'])
ifft = es.IFFT(size = params['frameSize']);
overl = es.OverlapAdd (frameSize = params['frameSize'], hopSize = params['hopSize']);
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize']/2))
insignal = VectorInput (signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> spec.frame
w.frame >> fft.frame
spec.spectrum >> pitchDetect.spectrum
fft.fft >> hmask.fft
pitchDetect.pitch >> hmask.pitch
pitchDetect.pitchConfidence >> (pool, 'pitchConfidence')
hmask.fft >> ifft.fft
ifft.frame >> overl.frame
overl.signal >> (pool, 'audio')
essentia.run(insignal)
# remove first half window frames
outaudio = pool['audio']
outaudio = outaudio [2*params['hopSize']:]
return outaudio, pool
def run(self):
global frame_g
while not self.stoprequest.isSet():
pool = essentia.Pool()
self.frame_q.get()
v_in = VectorInput(frame_g)
beat_tracker = RhythmExtractor2013(method="degara")
v_in.data >> beat_tracker.signal
beat_tracker.ticks >> (pool, 'Rhythm.ticks')
beat_tracker.bpm >> (pool, 'Rhythm.bpm')
beat_tracker.confidence >> None
beat_tracker.estimates >> None
beat_tracker.bpmIntervals >> None
essentia.run(v_in)
self.result_q.put(pool)
def chromaprint(self, analysisTime=30):
"""
This algorithm computes the fingerprint of the input signal using Chromaprint algorithm.
It is a wrapper of the Chromaprint library
Returns: The chromaprints are returned as base64-encoded strings.
"""
vec_input = ess.VectorInput(self.audio_vector)
chromaprinter = ess.Chromaprinter(analysisTime=analysisTime, sampleRate=self.fs)
pool = Pool()
vec_input.data >> chromaprinter.signal
chromaprinter.fingerprint >> (pool, 'chromaprint')
run(vec_input)
return pool['chromaprint']
def analsynthSineModelStreaming(params, signal):
out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize = params['frameSize'], hopSize = params['hopSize'], startFromZero = False);
w = es.Windowing(type = "blackmanharris92");
fft = es.FFT(size = params['frameSize']);
smanal = es.SineModelAnal(sampleRate = params['sampleRate'], maxnSines = params['maxnSines'], magnitudeThreshold = params['magnitudeThreshold'], freqDevOffset = params['freqDevOffset'], freqDevSlope = params['freqDevSlope'])
smsyn = es.SineModelSynth(sampleRate = params['sampleRate'], fftSize = params['frameSize'], hopSize = params['hopSize'])
ifft = es.IFFT(size = params['frameSize']);
overl = es.OverlapAdd (frameSize = params['frameSize'], hopSize = params['hopSize']);
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize']/2))
insignal = VectorInput (signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
# synthesis
smanal.magnitudes >> smsyn.magnitudes
smanal.frequencies >> smsyn.frequencies
smanal.phases >> smsyn.phases
smsyn.fft >> ifft.fft
ifft.frame >> overl.frame
overl.signal >> (pool, 'audio')
essentia.run(insignal)
# remove short tracks
freqs = pool['frequencies']
minFrames = int( params['minSineDur'] * params['sampleRate'] / params['hopSize']);
freqsClean = cleaningSineTracks(freqs, minFrames)
pool['frequencies'].data = freqsClean
# remove first half window frames
outaudio = pool['audio']
outaudio = outaudio [2*params['hopSize']:]
return outaudio, pool
def analsynthSineSubtractionStreaming(params, signal):
out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
fft = es.FFT(size=params['frameSize'])
smanal = es.SineModelAnal(sampleRate=params['sampleRate'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'])
subtrFFTSize = min(params['frameSize'] / 4, 4 * params['hopSize'])
smsub = es.SineSubtraction(sampleRate=params['sampleRate'],
fftSize=subtrFFTSize,
hopSize=params['hopSize'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize'] / 2))
insignal = VectorInput(signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
# subtraction
fcut.frame >> smsub.frame
smanal.magnitudes >> smsub.magnitudes
smanal.frequencies >> smsub.frequencies
smanal.phases >> smsub.phases
smsub.frame >> (pool, 'frames')
essentia.run(insignal)
print pool['frames'].shape
outaudio = framesToAudio(pool['frames'])
outaudio = outaudio[2 * params['hopSize']:]
return outaudio, pool
def analSprModelStreaming(params, signal):
#out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
spec = es.Spectrum(size=params['frameSize'])
smanal = es.SprModelAnal(sampleRate=params['sampleRate'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'],
minFrequency=params['minFrequency'],
maxFrequency=params['maxFrequency'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize'] / 2))
insignal = VectorInput(signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> smanal.frame
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
smanal.res >> (pool, 'res')
essentia.run(insignal)
# remove first half window frames
mags = pool['magnitudes']
freqs = pool['frequencies']
phases = pool['phases']
# remove short tracks
minFrames = int(params['minSineDur'] * params['sampleRate'] /
params['hopSize'])
freqsClean = cleaningSineTracks(freqs, minFrames)
pool['frequencies'].data = freqsClean
return mags, freqsClean, phases
def extract_loudness(file):
pool = essentia.Pool()
loader = MonoLoader(filename=file)
frameCutter = FrameCutter(frameSize=44100 * 60, hopSize=44100 * 5)
loader.audio >> frameCutter.signal
#Loudness
loudness = Loudness()
frameCutter.frame >> loudness.signal
loudness.loudness >> (pool, "lowlevel.loudness")
essentia.run(loader)
df = pd.DataFrame()
df["Loudness"] = pool["lowlevel.loudness"]
return df
def __rhythm_extractor_process(filename, result):
pool = essentia.Pool()
loader = MonoLoader(filename=filename)
bt = RhythmExtractor2013()
loader.audio >> bt.signal
bt.bpm >> (pool, 'bpm')
bt.ticks >> (pool, 'ticks')
bt.confidence >> (pool, 'confidence')
bt.estimates >> (pool, 'estimates')
bt.bpmIntervals >> (pool, 'bpmIntervals')
essentia.run(loader)
result.append({
'bpm': pool['bpm'],
'ticks': list(pool['ticks']),
'confidence': pool['confidence'],
'estimates': list(pool['estimates']),
'bpmIntervals': list(pool['bpmIntervals'])
})
pool.clear()
def callback(data):
# update audio buffer
buffer[:] = array(unpack('f' * bufferSize, data))
# generate predictions
reset(vimp)
run(vimp)
# update mel and activation buffers
melBuffer[:] = np.roll(melBuffer, -patchSize)
melBuffer[:, -patchSize:] = pool['melbands'][-patchSize:,:].T
img_mel.set_data(melBuffer)
actBuffer[:] = np.roll(actBuffer, -1)
actBuffer[:, -1] = softmax(20 * pool['model/Sigmoid'][-1,:].T)
img_act.set_data(actBuffer)
# update plots
f.canvas.draw()
def analsynthSpsModelStreaming(params, signal):
out = array([0.])
pool = essentia.Pool()
# windowing and FFT
fcut = es.FrameCutter(frameSize = params['frameSize'], hopSize = params['hopSize'], startFromZero = False);
w = es.Windowing(type = "blackmanharris92");
spec = es.Spectrum(size = params['frameSize']);
smanal = es.SpsModelAnal(sampleRate = params['sampleRate'], hopSize = params['hopSize'], maxnSines = params['maxnSines'], magnitudeThreshold = params['magnitudeThreshold'], freqDevOffset = params['freqDevOffset'], freqDevSlope = params['freqDevSlope'], minFrequency = params['minFrequency'], maxFrequency = params['maxFrequency'], stocf = params['stocf'])
synFFTSize = min(params['frameSize']/4, 4*params['hopSize']); # make sure the FFT size is appropriate
smsyn = es.SpsModelSynth(sampleRate = params['sampleRate'], fftSize = synFFTSize, hopSize = params['hopSize'], stocf = params['stocf'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize']/2))
insignal = VectorInput (signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> smanal.frame
# synthesis
smanal.magnitudes >> smsyn.magnitudes
smanal.frequencies >> smsyn.frequencies
smanal.phases >> smsyn.phases
smanal.stocenv >> smsyn.stocenv
smsyn.frame >> (pool, 'frames')
smsyn.sineframe >> (pool, 'sineframes')
smsyn.stocframe >> (pool, 'stocframes')
essentia.run(insignal)
outaudio = framesToAudio(pool['frames'])
outaudio = outaudio [2*params['hopSize']:]
return outaudio, pool
def sfxPitch(pool, namespace=''):
sfxspace = 'sfx.'
llspace = 'lowlevel.'
if namespace:
sfxspace = namespace + '.sfx.'
llspace = namespace + '.lowlevel.'
pitch = pool[llspace+'pitch']
gen = streaming.VectorInput(pitch)
maxtt = streaming.MaxToTotal()
mintt = streaming.MinToTotal()
amt = streaming.AfterMaxToBeforeMaxEnergyRatio()
gen.data >> maxtt.envelope
gen.data >> mintt.envelope
gen.data >> amt.pitch
maxtt.maxToTotal >> (pool, sfxspace+'pitch_max_to_total')
mintt.minToTotal >> (pool, sfxspace+'pitch_min_to_total')
amt.afterMaxToBeforeMaxEnergyRatio >> (pool, sfxspace+'pitch_after_max_to_before_max_energy_ratio')
essentia.run(gen)
pc = standard.Centroid(range=len(pitch)-1)(pitch)
pool.set(sfxspace+'pitch_centroid', pc)
def extract_HPCP(_filename):
# initialization
HPCP_size=36
pool = Pool()
key = Key()
loader = MonoLoader(filename = _filename)
frameCutter = FrameCutter(frameSize = 4096, hopSize = 512)
window = Windowing(type = 'blackmanharris62')
spectrum = Spectrum()
spectralPeaks= SpectralPeaks(orderBy="magnitude",
magnitudeThreshold=1e-05,
minFrequency=100.0,
maxFrequency=5000.0,
maxPeaks=10000)
hpcp = HPCP(size = HPCP_size,
bandPreset = False,
minFrequency = 100.0,
maxFrequency = 5000.0,
weightType = 'squaredCosine',
nonLinear = False,
sampleRate= 44100.0,
windowSize = 4.0/3.0)
# audio-->frame cutter-->windowing-->spectrum-->spectral peaks-->HPCP
loader.audio >> frameCutter.signal
frameCutter.frame >> window.frame >> spectrum.frame
spectrum.spectrum >> spectralPeaks.spectrum
spectralPeaks.magnitudes >> hpcp.magnitudes
spectralPeaks.frequencies >> hpcp.frequencies
hpcp.hpcp>> (pool, 'hpcp vector')
essentia.run(loader)
hpcpVector= pool['hpcp vector']
globalHPCP=[]
#taking mean value for each frame to get global HPCP
globalHPCP=hpcpVector.mean(axis=0)
#normalized global HPCP
globalHPCP=normalize(globalHPCP)
return globalHPCP
def computeLowLevel(input_file, neqPool, eqPool, startTime, endTime, namespace=""):
llspace = "lowlevel."
rhythmspace = "rhythm."
if namespace:
llspace = namespace + ".lowlevel."
rhythmspace = namespace + ".rhythm."
rgain, sampleRate, downmix = getAnalysisMetadata(neqPool)
loader = streaming.EasyLoader(
filename=input_file,
sampleRate=sampleRate,
startTime=startTime,
endTime=endTime,
replayGain=rgain,
downmix=downmix,
)
eqloud = streaming.EqualLoudness()
loader.audio >> eqloud.signal
lowlevel.compute(eqloud.signal, loader.audio, neqPool, startTime, endTime, namespace)
lowlevel.compute(eqloud.signal, eqloud.signal, eqPool, startTime, endTime, namespace)
essentia.run(loader)
# check if we processed enough audio for it to be useful, in particular did
# we manage to get an estimation for the loudness (2 seconds required)
if not neqPool.containsKey(llspace + "loudness") and not eqPool.containsKey(llspace + "loudness"):
INFO("ERROR: File is too short (< 2sec)... Aborting...")
sys.exit(2)
sampleRate = neqPool["metadata.audio_properties.analysis_sample_rate"]
numOnsets = len(neqPool[rhythmspace + "onset_times"])
onset_rate = numOnsets / float(loader.audio.totalProduced()) * sampleRate
neqPool.set(rhythmspace + "onset_rate", onset_rate)
numOnsets = len(eqPool[rhythmspace + "onset_times"])
onset_rate = numOnsets / float(loader.audio.totalProduced()) * sampleRate
eqPool.set(rhythmspace + "onset_rate", onset_rate)
def analsynthSineSubtractionStreaming(params, signal):
out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize = params['frameSize'], hopSize = params['hopSize'], startFromZero = False);
w = es.Windowing(type = "blackmanharris92");
fft = es.FFT(size = params['frameSize']);
smanal = es.SineModelAnal(sampleRate = params['sampleRate'], maxnSines = params['maxnSines'], magnitudeThreshold = params['magnitudeThreshold'], freqDevOffset = params['freqDevOffset'], freqDevSlope = params['freqDevSlope'])
subtrFFTSize = min(params['frameSize']/4, 4* params['hopSize'])
smsub = es.SineSubtraction(sampleRate = params['sampleRate'], fftSize = subtrFFTSize, hopSize = params['hopSize'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize']/2))
insignal = VectorInput (signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
# subtraction
fcut.frame >> smsub.frame
smanal.magnitudes >> smsub.magnitudes
smanal.frequencies >> smsub.frequencies
smanal.phases >> smsub.phases
smsub.frame >> (pool, 'frames')
essentia.run(insignal)
print pool['frames'].shape
outaudio = framesToAudio(pool['frames'])
outaudio = outaudio [2*params['hopSize']:]
return outaudio, pool
# analysis loader.audio >> fcut.signal fcut.frame >> w.frame w.frame >> fft.frame fft.fft >> smanal.fft smanal.magnitudes >> (pool, 'magnitudes') smanal.frequencies >> (pool, 'frequencies') smanal.phases >> (pool, 'phases') # subtraction fcut.frame >> smsub.frame smanal.magnitudes >> smsub.magnitudes smanal.frequencies >> smsub.frequencies smanal.phases >> smsub.phases smsub.frame >> (pool, 'frames') essentia.run(loader) #store to file outaudio = pool['frames'].flatten() awrite = es.MonoWriter (filename = outputFilename, sampleRate = params['sampleRate']); outvector = es.VectorInput(outaudio) outvector.data >> awrite.audio essentia.run(outvector)
pool = essentia.Pool()
readMetadata(args[0], pool)
replaygain.compute(args[0], pool, startTime, endTime)
rgain, sampleRate, downmix = getAnalysisMetadata(pool)
loader = streaming.EqloudLoader(filename = args[0],
sampleRate = sampleRate,
startTime = startTime,
endTime = endTime,
replayGain = rgain,
downmix = downmix)
compute(loader.audio, loader.audio, pool, startTime, endTime,
sampleRate=analysisSampleRate)
essentia.run(loader)
# check if we processed enough audio for it to be useful, in particular did
# we manage to get an estimation for the loudness (2 seconds required)
if not pool.containsKey(llspace + "loudness"):
INFO('ERROR: File is too short (< 2sec)... Aborting...')
sys.exit(2)
numOnsets = len(pool[rhythmspace + 'onset_times'])
sampleRate = pool['metadata.audio_properties.analysis_sample_rate']
onset_rate = numOnsets/float(source.totalProduced())*sampleRate
pool.set(rhythmspace + 'onset_rate', onset_rate)
def runResetRun(gen, *args, **kwargs):
# 0. Find networks which contain algorithms who do not play nice with our
# little trick. In particular, we have a test for multiplexer that runs
# multiple generators...
def isValid(algo):
if isinstance(algo, essentia.streaming.VectorInput) and not algo.connections.values()[0]:
# non-connected VectorInput, we don't want to get too fancy here...
return False
if algo.name() == 'Multiplexer':
return False
for output, inputs in algo.connections.iteritems():
for inp in inputs:
if isinstance(inp, essentia.streaming._StreamConnector) and not isValid(inp.input_algo):
return False
return True
if not isValid(gen):
print 'Network is not capable of doing the run/reset/run trick, doing it the normal way...'
essentia.run(gen)
return
# 1. Find all the outputs in the network that are connected to pools--aka
# pool feeders and for each pool feeder, disconnect the given pool,
# store it, and connect a dummy pool in its place
def useDummy(algo, output, input):
if not hasattr(output, 'originalPools'):
output.originalPools = []
output.dummyPools = []
# disconnect original
output.originalPools.append(input)
output.disconnect(input)
# connect dummy
dummy = essentia.Pool()
output.dummyPools.append((dummy, input[1]))
output >> output.dummyPools[-1]
mapPools(gen, useDummy)
# 2. Run the network
essentia.run(gen)
# 3. Reset the network
essentia.reset(gen)
# 4. For each pool feeder, disconnect the dummy pool and reconnect the
# original pool
def useOriginal(algo, output, input):
# disconnect dummy
output.disconnect(input)
# the dummy pools and the original pools should have the same index
idx = output.dummyPools.index(input)
output.dummyPools.remove(input)
# connect original
output >> output.originalPools[idx]
# don't need these anymore
if len(output.dummyPools) == 0:
del output.dummyPools
del output.originalPools
mapPools(gen, useOriginal)
# 5. Run the network for the second and final time
return essentia.run(gen)