[Voyage-linux] Re: Glitches on Playback Start/Resume with Arcam rDAC and Voyage MPD 0.8

[Børge Strand-Bergesen]

Demian,

did you try the CM6631 board from me yet?

Børge

On Tue, May 15, 2012 at 6:34 AM, 1audio <demianm_1 at yahoo.com> wrote:
> The momentary frequency difference is normal. Its how the feedback keeps the
> rate of data transfer in sync with the dac.
>
> There are issues with the UAC2 driver in Linux similar to what you are
> seeing. Its standards compliant, but a little different than the OSX driver
> and handles the rate feedback differently. With luck and time the
> differences will get ironed out by the ALSA guys. We are waiting for someone
> to show them exactly where the issues lie. Without a USB2 sniffer its very
> difficult to capture the underlying issues.
>
> Meanwhile, except for the sample rate shift issues it works quite well for
> most UAC2 DAC's (the ones using XMOS or Audio Widget interfaces). It doesn't
> work well with Tenor or CMedia chipsets.
>            Demian
>
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