Python，錯誤音頻使用Pyaudio以16000Hz錄音

Question

我使用Python 2.7.3，Mac OS 10.8.2和Xcode 4.5.1

我試圖按照http://people.csail.mit.edu/hubert/pyaudio/中的說明使用PyAudio錄制聲音

並使用該程序

"""PyAudio example: Record a few seconds of audio and save to a WAVE file."""

import pyaudio
import wave

CHUNK = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 2
RATE = 44100
RECORD_SECONDS = 5
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")

frames = []

for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
   data = stream.read(CHUNK)
   frames.append(data)

print("* done recording")

stream.stop_stream()
stream.close()
p.terminate()

wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(b''.join(frames))
wf.close()

它適用於RATE = 44100 。 但我想記錄RATE = 16000和CHANNELS = 1

更改值會給我一個錯誤

如何以RATE = 16000錄制？

Answer 1

我遇到了同樣的問題。 問題已在portaudio中修復，但brew為我安裝了舊版本。 我升級了

brew install portaudio --HEAD

然后能夠以CHANNELS = 1和RATE = 16000運行您的代碼