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Subdevice #0: subdevice #0<br>
card 1: rockchiphdmi0 [rockchip-hdmi0], device 0: rockchip-hdmi0 i2s-hifi-0 [rockchip-hdmi0 i2s-hifi-0]<br>
:Subdevices: 1/1<br>:Subdevice #0: subdevice #0<br>
<span style="color:#0066CC;">card 2: rockchipes8388 [rockchip-es8388], device 0: dailink-multicodecs ES8323.6-0010-0 [dailink-multicodecs ES8323.6-0010-0]</span><br>
:<span style="color:#0066CC;">Subdevices: 1/1</span><br>:<span style="color:#0066CC;">Subdevice #0: subdevice #0</span>
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3) Then use the aplay command to play the audio file that comes with the system. If the earphone can hear the sound, it means that the hardware can be used normally.<br>
|orangepi@orangepi:~$ '''aplay -l'''<br>
<span></span>**** List of PLAYBACK Hardware Devices ****<br>
card 0: rockchipdp0 [rockchip-dp0], device 0: rockchip-dp0 spdif-hifi-0 [rockchip-dp0 spdif-hifi-0] <br> :Subdevices: 1/1<br>:Subdevice #0: subdevice #0<br><span style="color:#0066CC;">card 1: rockchiphdmi0 [rockchip-hdmi0], device 0: rockchip-hdmi0 i2s-hifi-0 [rockchip-hdmi0 i2s-hifi-0] </span><br> :<span style="color:#0066CC;">Subdevices: 1/1</span><br>:<span style="color:#0066CC;">Subdevice #0: subdevice #0</span><br>
card 2: rockchipes8388 [rockchip-es8388], device 0: dailink-multicodecs ES8323.6-0010-0 [dailink-multicodecs ES8323.6-0010-0]<br>
:Subdevices: 1/1<br>:Subdevice #0: subdevice #0<br>
|}
3) Then use the aplay command to play the audio file that comes with the system. If the HDMI monitor or TV can hear the sound, it means that the hardware can be used normally<br>
