def get_user_audio():
'''
Using pyaudio, this function takes in mic input and returns the respective midi pitch value.
'''
# instantiate PyAudio object
p = pyaudio.PyAudio()
# open mic stream
mic = p.open(format=FORMAT,
channels=CHANNELS,
rate=RATE,
input=True,
frames_per_buffer=PERIOD_SIZE_IN_FRAME)
# Initiating Aubio's pitch detection object.
pDetection = aubio.pitch(METHOD, CHUNK, HOP_SIZE, RATE)
# Set unit.
pDetection.set_unit("Hz")
# Frequency under 5 dB will considered
# as a silence (8 dB is a C1 or midi#0)
pDetection.set_silence(-40)
data = mic.read(PERIOD_SIZE_IN_FRAME)
# Convert into number that Aubio understand.
samples = np.fromstring(data, dtype=aubio.float_type)
# Finally get the pitch.
pitch = pDetection(samples)[0]
midi = freq2midi(pitch)
mic.stop_stream()
mic.close()
p.terminate()
return midi
def representationToNote(representation_list): notes_list = [] for i, representation in enumerate(representation_list): note_in_freq = representation[0] note_in_midi = int(freq2midi(note_in_freq)) if note_in_midi < 0: note_in_midi = 0 notes_list.append(note_in_midi) return notes_list
def frequencyToNote(frequencies):
tempList = frequencies.copy()
for i in range(len(frequencies)):
if frequencies[i] == None:
tempList[i] = []
else:
tempList[i] = freq2midi(frequencies[i])
j = 0
k = 0
while j < len(frequencies[i]) - k:
if tempList[i][j] < 0 or tempList[i][j] >= 256:
tempList[i].remove(tempList[i][j])
j = 0
k += 1
j += 1
print(tempList)
return tempList
channels=CHANNELS,
rate=RATE,
input=True,
frames_per_buffer=PERIOD_SIZE_IN_FRAME)
# Initiating Aubio's pitch detection object.
pDetection = aubio.pitch(METHOD, CHUNK, HOP_SIZE, RATE)
# Set unit.
pDetection.set_unit("Hz")
# Frequency under 5 dB will considered
# as a silence (8 dB is a C1 or midi#0)
pDetection.set_silence(-40)
while mic.is_active():
# Always listening to the microphone.
data = mic.read(PERIOD_SIZE_IN_FRAME)
print(data)
# Convert into number that Aubio understand.
samples = np.fromstring(data, dtype=aubio.float_type)
# Finally get the pitch.
pitch = pDetection(samples)[0]
midi = freq2midi(pitch)
print(str(pitch) + " " + str(midi))
mic.stop_stream()
mic.close()
p.terminate()