Re: [PATCH] ALSA: usb-audio: Eliminate noise at the start of DSD playback.

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On Mon, 12 Dec 2016 18:52:58 +0100,
Nobutaka Okabe wrote:
> 
> [Problem]
> In some USB DACs, a terrible pop noise comes to be heard
> at the start of DSD playback (in the following situations).
> 
> - play first DSD track
> - change from PCM track to DSD track
> - change from DSD64 track to DSD128 track (and etc...)
> - seek DSD track
> - Fast-Forward/Rewind DSD track
> 
> [Cause]
> At the start of playback, there is a little silence.
> The silence bit pattern "0x69" is required on DSD mode,
> but it is not like that.
> 
> [Solution]
> This patch adds DSD silence pattern to the endpoint settings.
> 
> Signed-off-by: Nobutaka Okabe <nob77413@xxxxxxxxx>

Thanks, applied.


Takashi
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