帮我使用python写出录制mp3的代码
时间: 2024-02-04 08:03:54 浏览: 17
为了录制mp3,我们需要安装PyAudio和lame库。你可以使用以下命令来安装它们:
```
pip install pyaudio
sudo apt-get install lame
```
接下来是录制mp3的代码:
```python
import pyaudio
import wave
import subprocess
# 设置录音参数
FORMAT = pyaudio.paInt16
CHANNELS = 2
RATE = 44100
CHUNK = 1024
RECORD_SECONDS = 5
WAVE_OUTPUT_FILENAME = "output.wav"
MP3_OUTPUT_FILENAME = "output.mp3"
# 初始化PyAudio
audio = pyaudio.PyAudio()
# 打开音频流
stream = audio.open(format=FORMAT, channels=CHANNELS,
rate=RATE, input=True,
frames_per_buffer=CHUNK)
print("开始录音...")
# 录制音频
frames = []
for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
data = stream.read(CHUNK)
frames.append(data)
print("录音结束!")
# 关闭音频流
stream.stop_stream()
stream.close()
audio.terminate()
# 保存WAV文件
waveFile = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
waveFile.setnchannels(CHANNELS)
waveFile.setsampwidth(audio.get_sample_size(FORMAT))
waveFile.setframerate(RATE)
waveFile.writeframes(b''.join(frames))
waveFile.close()
# 转换为MP3文件
subprocess.call(['lame', WAVE_OUTPUT_FILENAME, MP3_OUTPUT_FILENAME])
print("MP3文件已生成!")
```
这段代码会录制5秒钟的音频,将它保存为WAV文件,然后使用lame库将WAV文件转换为MP3文件。你可以根据需要修改录音时长和输出文件名。