[mythtv] OT - Keeping HDMI audio link open

Lennart Sorensen lsorense at csclub.uwaterloo.ca
Thu Jun 23 15:37:02 UTC 2016

On Thu, Jun 23, 2016 at 09:46:19AM +0000, Mark Perkins wrote:
> John, in your testing did you try something like the solution presented here
> -
> https://www.tolaris.com/2011/07/03/solving-the-2-second-sound-delay-with-xbm
> c-and-hdmi/
> Kingsley, might work for your situation as well.
> To be honest (full disclosure I have no real experience with this kind of
> stuff so make of it what you will) playing silence has never really felt
> 'right' to me. I find it hard to image that that is what the manufacturers
> of the other devices (roku et al) are doing. I did a little googling about
> power saving and modules going into suspended mode and found this link
> http://askubuntu.com/questions/218444/sound-output-starts-delayed which has
> two proposed solutions regarding preventing audio modules from going into
> sleep / power save modes.
> Whether either are relevant to either of you will depend on your specific
> situations of course. But they did sound promising, to me at least.
> Maybe....??? Good Luck.

I do wonder if those "solutions" would not cause a new problem.

If you are running aplay, doesn't that keep the sound channel busy so
your other program can't play?  And even if it doesn't, what if you want
to play multi channel audio, not just stereo?  How does that interact
with something that is always playing a stereo signal?

Len Sorensen

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