Created
March 20, 2017 15:40
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Skeleton for on-line voice modification scripts. Requires numpy and PyAudio
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| import pyaudio | |
| import numpy as np | |
| FORMAT = pyaudio.paInt16 | |
| CHANNELS = 1 | |
| RATE = 44100 | |
| CHUNK = 1024 | |
| audio = pyaudio.PyAudio() | |
| def audioIn(): | |
| stream = audio.open(format=FORMAT, channels=CHANNELS, rate=RATE, input=True, frames_per_buffer=CHUNK) | |
| prev = np.zeros(1024) | |
| new_data = np.zeros(1024) | |
| while True: | |
| prev = new_data | |
| new_data = (np.fromstring(stream.read(CHUNK), dtype=np.int16) / (2**15) + 1) / 2 | |
| yield prev, new_data | |
| def audioOut(): | |
| stream = audio.open(output=True, channels=CHANNELS, rate=RATE, format=pyaudio.paInt16) | |
| while True: | |
| input_data = yield | |
| input_data = ((input_data*2 - 1)*(2**15)).astype(np.int16) | |
| stream.write(input_data.tostring()) | |
| sink = audioOut() | |
| next(sink) | |
| sink.send(np.zeros(CHUNK*10)) | |
| for previous, current in audioIn(): | |
| # Do modifications here | |
| sink.send(current) |
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