set alsa gain / output sound volume

ShellAlbert / deploy-tx2

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set alsa gain / output sound volume #5

Open ShellAlbert opened 5 years ago

ShellAlbert commented 5 years ago

sudo alsamixer cannot open mixer: no such device.

Try to use:

alsamixer -c 1

alsamixer -c 2

alsamixer -c 3

sudo alsamixer -c 1

ShellAlbert commented 5 years ago

QQ图片20190820164610 QQ图片20190820164614

执行：

sudo alsactl store

这应该将alsamixer配置保存到每次启动时加载的/etc/asound.state。

ShellAlbert commented 5 years ago

/home/zhangshaoyan/.config/autostart/p16.desktop

QQ截图20190820171312

ShellAlbert commented 5 years ago

sudo alsamixer -c 1 QQ截图20190821165959

配置文件更改wifi hotspot名称及密码 QQ截图20190821170021

ShellAlbert commented 5 years ago

QQ图片20190821170221 QQ图片20190821170226

ShellAlbert commented 5 years ago

debug log: 1.在jetson tx2原板上使用usb audio capture/play 设备，使用aplay -D plughw:CARD=USBSA,DEV=0 fo.wav播放没有杂音，但是使用p16.bin采集并输出有杂音。 2.在自制底板上，播放也没有杂音，p16.bin采集并输出是有杂音的。明天继续debug.