I have two nano Pi Neo Core boards and one Nano Pi Neo Core 2 Board. On all boards there is a glitch. When I play the audio file at the beginning and at the end, I hear a click. I think it's because of the DAC's on / off switch. Also, at the beginning of playback, the initial sound is lost for about one second.
I use for example: "aplay audio.wav"
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How to make the DAC never turned off?