WhyCan Forum(哇酷开发者社区)

全志v3s荔枝派zero对usb声卡的支持
淘宝7元买的usb声卡
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效果
视频声音小了，请将电脑声音调置最大

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内核
Device Drivers -->

     Sound card support -->

--- Sound card support    Preclaim OSS device numbers

  <*> Advanced Linux Sound Architecture -->   

--- Advanced Linux Sound Architecture

    [ *]   Enable OSS Emulation

   < *>  OSS Mixer API   

   < *>  OSS PCM (digital audio) API   

   [ *]   OSS PCM (digital audio) API - Include plugin system   

   [ *]   USB sound devices --->

          <*>USB Audio /MIDI drive
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设备树
/*
&codec {
    allwinner,audio-routing =
        "Headphone", "HP",
        "Headphone", "HPCOM",
        "MIC1", "Mic",
        "Mic",  "HBIAS";
    status = "okay";
};
*/
我去除了原来的声卡配置，因为用不上，自己画的板子，耳机口还没焊接
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根文件
开启alsa

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验证
ls/dev
查看有没有audio设备

root@lzq:/129# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
root@lzq:/129#
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问题
mp3格式无法用aplay播放（都是噪声），估计是采样率不匹配，用mplayer就好了
aplay只能播放wav格式的音乐

最近编辑记录 资本家大善人 (2021-07-21 22:24:13)