def detect(self):
sent = "Series {+ input_file = \"%s\"-> input: SoundFileSource { filename = /input_file inSamples = 2048}-> Windowing {size = 2048}-> Spectrum -> PowerSpectrum -> Transposer -> MaxArgMax ->Transposer -> selection: Selector {disable = 0}-> CsvSink { filename = \"wode.csv\" }+ done = (input/hasData == false)}" % self.filename
file = open("wodefile.mrs", "w")
file.write(sent)
file.close()
mng = marsyas.MarSystemManager()
fnet = mng.create("Series", "featureNetwork")
result = []
system = marsyas.system_from_script_file("wodefile.mrs")
get = system.getControl
while get("SoundFileSource/input/mrs_bool/hasData").to_bool():
system.tick()
result.extend(
get("Selector/selection/mrs_realvec/processedData").to_realvec(
))
result[-1] *= 44100 / 2048
sum = 0.0
for i in range(0, len(result)):
sum += result[i]
avg = np.array(sum / len(result) / 1000)
clfs = [SVC()]
for clf in clfs:
clf.fit(self.X, self.y)
y_pred = clf.predict(avg)
self.play(y_pred[0])
def detect_key(music_file):
"""
Determines the predominant key of a given music file.
* music_file: The filename of a music file which Marsyas can read.
Returns one of ["A", "A#", "B", "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#"]
"""
from collections import Counter
keys = ["A", "A#", "B", "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#"]
# Build the system.
msm = marsyas.MarSystemManager()
system = marsyas.system_from_script_file("marsystems/key-detection.mrs")
# Define some variables
system.updControl("mrs_string/file", marsyas.MarControlPtr.from_string(music_file))
system.updControl("mrs_real/israte", 22050.0)
system.updControl("mrs_real/osrate", 22050.0)
system.updControl("mrs_natural/inSamples", 16384)
system.updControl("mrs_natural/onSamples", 16384)
result = []
# Tick the system.
while (system.getControl("SoundFileSource/input/mrs_bool/hasData").to_bool()):
system.tick()
result.append(system.getControl("mrs_string/key_name").to_string())
counts = Counter(result).most_common();
# print(counts)
return counts[0][0]
def run_script(script_file, output_file, *input_files):
"""
This function assists in running Marsyas scripts.
"""
# Build the system.
msm = marsyas.MarSystemManager()
system = marsyas.system_from_script_file(script_file)
# Define some variables
for i, this_input in enumerate(input_files):
system.updControl("SoundFileSource/input_{}/mrs_string/filename".format(i), marsyas.MarControlPtr.from_string(this_input))
system.updControl("SoundFileSink/output/mrs_string/filename", marsyas.MarControlPtr.from_string(output_file))
# Tick the system.
while (system.getControl("SoundFileSource/input_0/mrs_bool/hasData").to_bool()):
system.tick()
def key_detection(ingress):
"""
Runs a key detection algorithm over the ingress realvec or list.
"""
if type(ingress) != "list":
list = list(ingress)
# Build the system.
msm = marsyas.MarSystemManager()
system = marsyas.system_from_script_file(script_file)
# Define some variables
for i, this_input in enumerate(input_files):
system.updControl("RealVecSource/input_{}/mrs_string/filename".format(i), marsyas.MarControlPtr.from_string(this_input))
system.updControl("SoundFileSink/output/mrs_string/filename", marsyas.MarControlPtr.from_string(output_file))
# Tick the system.
while (system.getControl("RealVecSource/input_0/mrs_bool/hasData").to_bool()):
system.tick()
def to_realvec(input_file):
"""
Transforms an input file into a `marsyas.realvec` of data for further passing, also makes the track mono.
"""
# Build the system.
msm = marsyas.MarSystemManager()
system = marsyas.system_from_script_file("marsystems/to_realvec.mrs")
# Define some variables
system.updControl("mrs_string/file", marsyas.MarControlPtr.from_string(input_file))
# This is a dumb way of doing it but I can't figure out a better way.
egress = marsyas.realvec()
# Tick the system.
while (not system.getControl("mrs_bool/done").to_bool()):
system.tick()
tick_data = system.getControl("mrs_realvec/processedData").to_realvec()
egress.appendRealvec(tick_data)
return egress
def to_realvec(input_file):
"""
Transforms an input file into a `marsyas.realvec` of data for further passing, also makes the track mono.
"""
# Build the system.
msm = marsyas.MarSystemManager()
system = marsyas.system_from_script_file("marsystems/to_realvec.mrs")
# Define some variables
system.updControl("mrs_string/file",
marsyas.MarControlPtr.from_string(input_file))
# This is a dumb way of doing it but I can't figure out a better way.
egress = marsyas.realvec()
# Tick the system.
while (not system.getControl("mrs_bool/done").to_bool()):
system.tick()
tick_data = system.getControl("mrs_realvec/processedData").to_realvec()
egress.appendRealvec(tick_data)
return egress
def run_script(script_file, output_file, *input_files):
"""
This function assists in running Marsyas scripts.
"""
# Build the system.
msm = marsyas.MarSystemManager()
system = marsyas.system_from_script_file(script_file)
# Define some variables
for i, this_input in enumerate(input_files):
system.updControl(
"SoundFileSource/input_{}/mrs_string/filename".format(i),
marsyas.MarControlPtr.from_string(this_input))
system.updControl("SoundFileSink/output/mrs_string/filename",
marsyas.MarControlPtr.from_string(output_file))
# Tick the system.
while (system.getControl(
"SoundFileSource/input_0/mrs_bool/hasData").to_bool()):
system.tick()
def key_detection(ingress):
"""
Runs a key detection algorithm over the ingress realvec or list.
"""
if type(ingress) != "list":
list = list(ingress)
# Build the system.
msm = marsyas.MarSystemManager()
system = marsyas.system_from_script_file(script_file)
# Define some variables
for i, this_input in enumerate(input_files):
system.updControl(
"RealVecSource/input_{}/mrs_string/filename".format(i),
marsyas.MarControlPtr.from_string(this_input))
system.updControl("SoundFileSink/output/mrs_string/filename",
marsyas.MarControlPtr.from_string(output_file))
# Tick the system.
while (system.getControl(
"RealVecSource/input_0/mrs_bool/hasData").to_bool()):
system.tick()
import marsyas
import json
net = marsyas.system_from_script_file("test.mrs")
print net.toStringShort()
net = marsyas.system_from_script("""
Network : Series
{
-> input: NoiseSource
-> amp: Gain
-> output: AudioSink
}
""")
print net.toStringShort()
def time_shift(**args):
options = deepcopy(default_options)
for arg in args:
options[arg] = args[arg]
outfile = options['outfile']
mng = marsyas.MarSystemManager()
pvseries = marsyas.system_from_script_file("./marsystems/time-shift.mrs")
pvseries.updControl("mrs_string/file", options['music_file'])
pvseries.updControl("mrs_string/outfile", outfile)
pvseries.updControl("mrs_real/israte", 44100.0)
pvseries.updControl("mrs_real/osrate", 44100.0)
pvseries.updControl("mrs_natural/inSamples", options['D'])
pvseries.updControl("mrs_natural/onSamples", options['I'])
pvseries.updControl("SoundFileSource/src/mrs_natural/onSamples", options['D'])
pvseries.updControl("mrs_natural/inObservations", 1)
pvseries.updControl("ShiftInput/si/mrs_natural/winSize", options['Nw'])
pvseries.updControl("PvFold/fo/mrs_natural/FFTSize", options['N'])
pvseries.updControl("PvConvert/conv/mrs_natural/Decimation", options['D'])
pvseries.updControl("PvConvert/conv/mrs_natural/Sinusoids", options['sopt'])
pvseries.updControl("PvConvert/conv/mrs_string/mode", options['convertmode_'])
pvseries.updControl("mrs_natural/onStabilizingDelay", 63)
pvseries.updControl("SoundFileSource/src/mrs_natural/onObservations", 2)
pvseries.updControl("SoundFileSource/src/mrs_natural/inSamples", options['D'])
pvseries.updControl("SoundFileSource/src/mrs_natural/onSamples", options['D'])
pvseries.updControl("ShiftInput/si/mrs_natural/onSamples", options['Nw'])
pvseries.updControl("ShiftInput/si/mrs_real/israte", 44100.0)
pvseries.updControl("ShiftInput/si/mrs_real/osrate", 44100.0)
pvseries.updControl("ShiftInput/si/mrs_natural/onObservations", 1)
pvseries.updControl("PvConvert/conv/mrs_natural/inSamples", 1)
pvseries.updControl("PvConvert/conv/mrs_natural/onSamples", 1)
pvseries.updControl("PvConvert/conv/mrs_real/osrate", 44100.0)
pvseries.updControl("PvUnconvert/uconv/mrs_natural/inObservations", options['Nw'])
pvseries.updControl("PvUnconvert/uconv/mrs_natural/onObservations", options['Nw'])
pvseries.updControl("PvUnconvert/uconv/mrs_natural/Interpolation", options['I'])
pvseries.updControl("PvUnconvert/uconv/mrs_natural/Decimation", options['D'])
pvseries.updControl("PvUnconvert/uconv/mrs_string/mode",options['unconvertmode_'])
pvseries.updControl("InvSpectrum/ispectrum/mrs_natural/onObservations", 1)
pvseries.updControl("InvSpectrum/ispectrum/mrs_natural/onSamples", options['N'])
pvseries.updControl("PvOverlapadd/pover/mrs_natural/FFTSize", options['N'])
pvseries.updControl("PvOverlapadd/pover/mrs_natural/winSize", options['Nw'])
pvseries.updControl("PvOverlapadd/pover/mrs_natural/Interpolation", options['I'])
pvseries.updControl("PvOverlapadd/pover/mrs_natural/Decimation", options['D'])
pvseries.updControl("ShiftOutput/so/mrs_natural/Interpolation", options['I'])
pvseries.linkControl("PvConvert/conv/mrs_realvec/phases", "PvUnconvert/uconv/mrs_realvec/analysisphases")
pvseries.linkControl("PvUnconvert/uconv/mrs_realvec/regions", "PvConvert/conv/mrs_realvec/regions")
pvseries.updControl("SoundFileSink/last/mrs_natural/bitrate", 320)
ticks = 0
notempty = pvseries.getControl("SoundFileSource/src/mrs_bool/hasData")
while (notempty.to_bool()):
if(ticks == 0):
pvseries.updControl("PvUnconvert/uconv/mrs_bool/phaselock", marsyas.MarControlPtr.from_bool(True))
pvseries.tick()
ticks = ticks + 1
#print ticks*(options['D']/44100.0)
return outfile
import marsyas
import json
net = marsyas.system_from_script_file("test.mrs")
print net.toStringShort()
net = marsyas.system_from_script("""
Network : Series
{
-> input: NoiseSource
-> amp: Gain
-> output: AudioSink
}
""")
print net.toStringShort()