使用自带codec录音报错， arecord: pcm_read:2072: read error: I/O error

[RTQQQ]

使用自带的codec进行录音，报错了，这是什么原因呢？alsamixer也设置了

root@TinaLinux:/# arecord -D hw:0,0 -f S16_LE test.wav
Recording WAVE 'test.wav' : [  162.476954] [SNDCODEC][sunxi_card_hw_params][620]:stream_flag: 1
Signed 16 bit Little Endian, Rate 8000 Hz, Mono
arecord: pcm_read:2072: read error: I/O error

[WhycanService]

通过 amixer 查看 route 状态，确认是否设置了需要的上下电通路。

[RTQQQ]

@whycanservice
你好，这是amixer 的显示内容，请问如何操作呢？

root@TinaLinux:/# amixer
Simple mixer control 'Headphone',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Headphone volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 7
  Mono: 4 [57%]
Simple mixer control 'FMINL gain volume',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'FMINR gain volume',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'ADC1 ADC2 swap',0
  Capabilities: enum
  Items: 'Off' 'On'
  Item0: 'Off'
Simple mixer control 'ADC1 Input FMINL',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'ADC1 Input LINEINL',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'ADC1 Input MIC1 Boost',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'ADC1 volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 255
  Mono: 160 [63%]
Simple mixer control 'ADC2 Input FMINR',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'ADC2 Input LINEINR',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'ADC2 Input MIC2 Boost',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'ADC2 volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 255
  Mono: 160 [63%]
Simple mixer control 'ADC3 ADC4 swap',0
  Capabilities: enum
  Items: 'Off' 'On'
  Item0: 'Off'
Simple mixer control 'ADC3 Input MIC3 Boost',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'ADC3 volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 255
  Mono: 160 [63%]
Simple mixer control 'DAC volume',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 255
  Front Left: 160 [63%]
  Front Right: 160 [63%]
Simple mixer control 'HpSpeaker',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'LINEINL gain volume',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'LINEINR gain volume',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'LINEOUT',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'LINEOUT volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 31
  Mono: 26 [84%]
Simple mixer control 'LINEOUTL Output Select',0
  Capabilities: enum
  Items: 'DAC_SINGLE' 'DAC_DIFFER'
  Item0: 'DAC_DIFFER'
Simple mixer control 'LINEOUTR Output Select',0
  Capabilities: enum
  Items: 'DAC_SINGLE' 'DAC_DIFFER'
  Item0: 'DAC_DIFFER'
Simple mixer control 'MIC1 Input Select',0
  Capabilities: enum
  Items: 'MIC_DIFFER' 'MIC_SINGLE'
  Item0: 'MIC_DIFFER'
Simple mixer control 'MIC1 gain volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 31
  Mono: 31 [100%]
Simple mixer control 'MIC2 Input Select',0
  Capabilities: enum
  Items: 'MIC_DIFFER' 'MIC_SINGLE'
  Item0: 'MIC_DIFFER'
Simple mixer control 'MIC2 gain volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 31
  Mono: 31 [100%]
Simple mixer control 'MIC3 Input Select',0
  Capabilities: enum
  Items: 'MIC_DIFFER' 'MIC_SINGLE'
  Item0: 'MIC_DIFFER'
Simple mixer control 'MIC3 gain volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 31
  Mono: 31 [100%]
Simple mixer control 'codec hub mode',0
  Capabilities: enum
  Items: 'hub_disable' 'hub_enable'
  Item0: 'hub_disable'
Simple mixer control 'digital volume',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 63
  Mono: 63 [100%]

[RTQQQ]

@whycanservice

[WhycanService]

amixer -D hw:audiocodec cset numid=21 0 && \
    amixer -D hw:audiocodec cset numid=9 30 && \
    amixer -D hw:audiocodec cset numid=23 1 && \
    amixer -D hw:audiocodec cset numid=25 0 && \
    arecord -D hw:audiocodec -f S16_LE -t wav -r 16000 -d 3 t.wav

[qinlinbin]

请问一下，你这个问题解决了吗