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→使用命令播放音频的方法
card 0: rockchipdp0 [rockchip-dp0], device 0: rockchip-dp0 spdif-hifi-0 [rockchip-dp0 spdif-hifi-0] 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
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3) 然后使用 '''aplay''' 命令播放下系统自带的音频文件，如果 HDMI 显示器或者电视能听到声音说明硬件能正常使用<br>