未知的PCM cards.pcm.rear (pyaudio)

Question

该问题涉及到这个pydub问题。他们告诉我错误信息与pyaudio有关。

#!/usr/bin/env python3

import pydub, pydub.playback

wav = pydub.AudioSegment.from_wav('/home/user/complete.wav')
pydub.playback.play(wav)

这段代码引发了我不理解的错误。

ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started

音频本身播放得很好。我该如何防止出现错误。

- buhtz

Answer 1

如果你真的想要，可以通过以下命令移除蓝牙套接字（refused connections）：sudo apt-get remove bluez-alsa

如果要移除未知PCM 音频卡，则需要在 /usr/share/alsa/alsa.conf 中注释掉相关行。

其他的我不太清楚，但是你可以从这里开始查找：PyAudio working, but spits out error messages each time。

- Danimal