未知的PCM cards.pcm.rear (pyaudio)

Question

该问题与此pydub-Issue相关。他们告诉我这个错误消息与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

wav本身玩得很好。我怎样才能防止这些错误。

Answer 1

当移除以下蓝牙软件包(如果你真的想要) sudo apt-get remove bluez-alsa时，拒绝的连接被移除

通过注释掉/usr/share/alsa/alsa.conf中的相关行，删除未知的PCM卡。

其他的我不知道，但你可以从这里开始寻找：PyAudio working, but spits out error messages each time。