树莓派上的 Alsa 问题

Question

我正在尝试使用 IBM watson TTS 引擎来播放文本。播放声音时，出现以下错误:

ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.surround51.0:CARD=0' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM surround21ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.surround51.0:CARD=0' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM surround21ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.surround40.0:CARD=0' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM surround40ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.surround51.0:CARD=0' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM surround41ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.surround51.0:CARD=0' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM surround50ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.surround51.0:CARD=0' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM surround51ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.surround71.0:CARD=0' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM surround71ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.iec958.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM iec958 ALSAlib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.iec958.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM spdif ALSAlib confmisc.c:1286:(snd_func_refer) Unable to find definition'cards.bcm28
35.pcm.iec958.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2' ALSA lib conf.c:4259:(_snd_config_evaluate) function snd_func_refer returnederr
or: No such file or directory ALSA lib conf.c:4738:(snd_config_expand)Evaluate error: No such file or directo
ry ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM spdif ALSAlib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect:Connection r
efused

ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect:Connection r
efused

connect(2) call to /tmp/jack-1000/default/jack_0 failed (err=No suchfile or dir
ectory)

我的输出 aplay -l是 :

**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Device [C-Media USB Audio Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

我的输出 .asoundrc是 :

pcm.!default {
  type asym
   playback.pcm {
     type plug
     slave.pcm "hw:0,0"
   }
   capture.pcm {
     type plug
     slave.pcm "hw:1,0"
   }
}

我一直在尝试各种方法来解决这个问题，但无济于事。
任何帮助或指示将不胜感激。

Answer 1

没有名为 cards.bcm2835.pcm.surround51.0:CARD=0 的声卡.
为此 .asoundrc配置，你可以使用 snd_pcm_open功能来打开“默认”声卡。
https://www.alsa-project.org/alsa-doc/alsa-lib/group___p_c_m.html#ga8340c7dc0ac37f37afe5e7c21d6c528b