设置 Raspberry Pi 3 个 USB 麦克风（创意声卡）

Question

谁能帮我设置我的 RPi 3。我想用我的游戏耳机（Creative Technology, Ltd Sound Blaster Tactic(3D) Sigma 声卡）构建语音到文本/语音识别。扬声器现在可以正常工作，但不幸的是我一直在设置麦克风。

在我调整设置之前，我可以 record/create 一个 wav 文件，但是每当我播放 wav 文件时都没有声音。更改一些设置后，我遇到了以下新错误。提前致谢！

错误：

pi@raspberrypi:~ $ arecord -D plughw:0,0 test9.wav
Recording WAVE 'test9.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
^CAborted by signal Interrupt...
arecord: pcm_read:2031: read error: Interrupted system call

配置：

~/.asoundrc

pcm.!default { type plug slave { pcm "hw:0,0" } }
ctl.!default { type hw card 0 }

/usr/share/alsa/alsa.conf

defaults.ctl.card 0
defaults.pcm.card 0
defaults.pcm.device 0
defaults.pcm.subdevice -1

/lib/modprobe.d/aliases.conf

options snd-pcsp index=-2
options snd-usb-audio index=0
options snd_bcm2835 index=1
options cx88_alsa index=-2
options snd-atiixp-modem index=-2
options snd-intel8x0m index=-2
options snd-via82xx-modem index=-2

# Does the reordering.
options snd slots=snd-usb-audio,snd-bcm2835

aplay -l

pi@raspberrypi:~/Desktop $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Sigma [Sound Blaster Tactic(3D) Sigma], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: 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 1: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

arecord -l

    pi@raspberrypi:~/Desktop $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Sigma [Sound Blaster Tactic(3D) Sigma], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Answer 1

更新

我已经成功解决了这个问题！事实证明，当我运行 alsamixer 时，~/.asoundrc 配置文件会自动更新。我的配置被新设置覆盖了。

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