def detectPitch(self): length, data = self.inp.read() samples = np.fromstring(data, dtype=np.int16) pitch = analyse.detect_pitch(samples) time.sleep(0.04) if pitch is not None: return pitch else: return 0
def processAudio(self, block):
try:
samples = fromstring(block, dtype=int16)
freq = analyse.detect_pitch(samples)
amplitude = self.getAmplitude(block) * 1000
self.detectedNoise = type(freq) != type(None)
if (self.detectedNoise and amplitude >= self.amplitudeThreshold):
self.pitch = Pitch(freq)
else:
self.pitch = None
except:
# Not best practices, but good for failing silently if PyAudio
# feeds you garbage audio data (which happens)
pass
def processAudio(self, block):
try:
samples = fromstring(block, dtype=int16)
freq = analyse.detect_pitch(samples)
amplitude = self.getAmplitude(block) * 1000
self.detectedNoise = type(freq) != type(None)
if self.detectedNoise and amplitude >= self.amplitudeThreshold:
self.pitch = Pitch(freq)
else:
self.pitch = None
except:
# Not best practices, but good for failing silently if PyAudio
# feeds you garbage audio data (which happens)
pass
def start_stream ():
"""This function should be executed in a separated thread because of infinite loop"""
inp = alsaaudio.PCM(type= alsaaudio.PCM_CAPTURE, mode=alsaaudio.PCM_NORMAL,device='default')
inp.setchannels(1)
inp.setrate(44100)
inp.setformat(alsaaudio.PCM_FORMAT_S16_LE)
inp.setperiodsize(3072)
while True:
length, data = inp.read()
samps = numpy.fromstring(data, dtype='int16')
pitch = analyse.musical_detect_pitch(samps)
hz = analyse.detect_pitch(samps)
#CallAfter is necessary for making GUI method calls from non-GUI threads
wx.CallAfter(show_everything,pitch,hz) # pitch is passed as an argument
def analyseChunk(CHUNK):
""" analyseChunk(CHUNK):
Cette fonction détermine le volume et la hauteur de la trame CHUNK.
INPUT = Trame d'échantillions (np.array)
OUTPUT = list(volume,pitch)
See Nathan Whitehead's GitHub for further details on the <analyse> module.
"https://github.com/ExCiteS/SLMPi/tree/master/SoundAnalyse-0.1.1"
"""
global prev_pitch
volume = analyse.loudness(CHUNK) # Calcul du Volume
pitch = analyse.detect_pitch(CHUNK) # Calcul de la hauteur
if pitch == None: # Structure conditionnelle de fin
pitch = prev_pitch
else:
prev_pitch = pitch
return [volume, pitch]
def record(stop, lock):
CHUNK = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 2
RATE = 44100
WAVE_OUTPUT_FILENAME = 'output.wav'
p = pyaudio.PyAudio()
stream = p.open(format=FORMAT,
channels=CHANNELS,
rate=RATE,
input=True,
frames_per_buffer=CHUNK)
print("* recording")
wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
while(True):
data = stream.read(CHUNK)
a = numpy.fromstring(data, dtype='int16')
print (analyse.detect_pitch(a, min_frequency=60.0, max_frequency=1500.0))
# print (numpy.abs(a).mean())
wf.writeframes(data)
if stop.value > 0:
lock.acquire()
break
print("* done recording")
stream.stop_stream()
stream.close()
wf.close()
p.terminate()
lock.release()
def postProcess(sampsArray):
frequencies = []
for samp in sampsArray:
frequencies.append(analyse.detect_pitch(samp))
return frequencies
import numpy
import pyaudio
import analyse
# Initialize PyAudio
pyaud = pyaudio.PyAudio()
# Open input stream, 16-bit mono at 44100 Hz
# On my system, device 2 is a USB microphone, your number may differ.
stream = pyaud.open(
format=pyaudio.paInt16, channels=1, rate=44100, input_device_index=0, input=True # Initialize PyAudio
)
while True:
# Read raw microphone data
rawsamps = stream.read(1024)
# Convert raw data to NumPy array
samps = numpy.fromstring(rawsamps, dtype=numpy.int16)
# Show the volume and pitch
print analyse.loudness(samps), analyse.detect_pitch(samps)
try:
stream = pyaud.open(
format = pyaudio.paInt16,
channels = 1,
rate = 44100,
input_device_index = int(Microfone),
input = True)
except:
print ("Falha ao Encontrar Dispositivo")
sys.exit()
Frequencia = ""
while True:
try:
pegaentrada = stream.read(1024)
except:
print ("%.0f Hz" %Frequencia)
os.system("cls")
dados = numpy.fromstring(pegaentrada, dtype=numpy.int16)
if analyse.detect_pitch(dados):
print ("%.0f Hz" %analyse.detect_pitch(dados))
os.system("cls")
Frequencia = analyse.detect_pitch(dados)
else:
print ("%.0f Hz" %Frequencia)
os.system("cls")
