Python：如何使用pythonio获取原始音频文件以在pocketsphinx中使用？

Question

我试图使用pyaudio以原始格式获取音频数据，然后在pocketsphinx中使用我的项目。但是，当我使用原始文件生成此程序的输出时，输出包含随机噪声。

我希望原始文件可以在pocketsphinx中使用。

import pyaudio
import wave

FORMAT = pyaudio.paInt32

CHANNELS = 1
RATE = 16000
CHUNK = 1024 
RECORD_SECONDS = 2

audio = pyaudio.PyAudio()

# start Recording
stream = audio.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 "finished recording"


# stop Recording
stream.stop_stream()
stream.close()
audio.terminate()


file = open("newfile.raw", "w")
file.write(b''.join(frames))
file.close()