SGTl5000录音失败

yxqlf

大家好，最近我在调试SGTL5000，播放功能已经没有问题，但是录音功能还没调通，不知是哪里出了问题，录音操作和播放可以进行，也可以形成音频文件，但是播放没有声音，以下是测试过程：
arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: sgtl5000audio [sgtl5000-audio], device 0: HiFi sgtl5000-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sgtl5000audio [sgtl5000-audio], device 0: HiFi sgtl5000-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
arecord -Dplughw:0,0 -r 48000 -f S16_LE -c 2 -d 5 record.wav

Recording WAVE 'record.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

aplay -Dplughw:0,0 record.wav
Playing WAVE 'record.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

耳机和音响听不到任何声音，有没有人知道是哪里出了问题？谢谢！

我知道答案 目前已有2人回答

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yxqlf

运行alsamixer也没有任何帮助，一下是amixer输出结果：
root@linaro-ubuntu-desktop:~# amixer
Simple mixer control 'Headphone',0
  Capabilities: pvolume penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 127
  Mono:
  Front Left: Playback 106 [83%] [1.50dB]
  Front Right: Playback 106 [83%] [1.50dB]
Simple mixer control 'Headphone Mux',0
  Capabilities: enum
  Items: 'DAC' 'LINE_IN'
  Item0: 'DAC'
Simple mixer control 'Headphone Playback ZC',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Speaker Function',0
  Capabilities: enum
  Items: 'off' 'on'
  Item0: 'off'
Simple mixer control 'Bass',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 63
  Mono: 58 [92%]
Simple mixer control 'Bass Enable',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Bass Filter Feq',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 7
  Mono: 1 [14%]
Simple mixer control 'Bass Level',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 127
  Mono: 96 [76%]
Simple mixer control 'PCM',0
  Capabilities: pvolume penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 156
  Mono:
  Front Left: Playback 117 [75%]
  Front Right: Playback 117 [75%]
Simple mixer control 'Surround Width',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 7
  Mono: 4 [57%]
Simple mixer control 'Line In Function',0
  Capabilities: enum
  Items: 'off' 'on'
  Item0: 'off'
Simple mixer control 'Mic',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 4
  Mono: 3 [75%] [40.00dB]
Simple mixer control 'I2S_OUT',0
  Capabilities: enum
  Items: 'ADC' 'I2S_IN' 'reserved' 'DAP'
  Item0: 'I2S_IN'
Simple mixer control 'Capture',0
  Capabilities: cvolume penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 15
  Front Left: Capture 12 [80%]
  Front Right: Capture 12 [80%]
Simple mixer control 'Capture Attenuate Switch (-6dB)',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 2
  Mono: 1 [50%]
Simple mixer control 'Capture Mux',0
  Capabilities: enum
  Items: 'MIC_IN' 'LINE_IN'
  Item0: 'MIC_IN'
Simple mixer control 'Capture ZC',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Mixer Channel',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 200
  Mono: 52 [26%] [0.52dB]
Simple mixer control 'AVC Enable',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'AVC Hard Limit',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'AVC Max Gain',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 2
  Mono: 1 [50%]
Simple mixer control 'AVC Threshold (-dB)',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 96
  Mono: 12 [12%]
Simple mixer control 'DAC_IN',0
  Capabilities: enum
  Items: 'ADC' 'I2S_IN' 'reserved' 'DAP'
  Item0: 'I2S_IN'
Simple mixer control 'DAP_IN',0
  Capabilities: enum
  Items: 'ADC' 'I2S_IN'
  Item0: 'ADC'
Simple mixer control 'DAP_MIXER Mixer Channel',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Jack Function',0
  Capabilities: enum
  Items: 'off' 'on'
  Item0: 'off'
Simple mixer control 'MIX_MUX',0
  Capabilities: enum
  Items: 'ADC' 'I2S_IN'
  Item0: 'ADC'
Simple mixer control 'Main Channel',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 200
  Mono: 110 [55%] [1.10dB]
root@linaro-ubuntu-desktop:~#

FSL_TICS_ZJJ

楼主你好
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