[mythtv-users] Audible POP from speaker on starting playback

Jim Abernathy jfabernathy at gmail.com
Mon Nov 2 11:11:53 UTC 2020


On 11/2/20 5:28 AM, David Watkins wrote:
>
>
> On Sat, 31 Oct 2020 at 18:13, David Watkins <watkinshome at gmail.com 
> <mailto:watkinshome at gmail.com>> wrote:
>
>
>
>     On Sat, 31 Oct 2020 at 10:40, David Watkins <watkinshome at gmail.com
>     <mailto:watkinshome at gmail.com>> wrote:
>
>
>
>
>             Alternatively make myth use a mixed output (e.g. alsa dmix
>             or pulse-audio), and have the computer "keep the audio
>             circuit open" (for want of a better term). The pop is from
>             your computer's output turning on. Again, your ears have
>             the final say.
>
>
>         That's the sort of solution I’ve  been searching for.  I am
>         using pulse-audio and I’ve been playing around with alsa-mixer
>         but I don't really know where to go from there.  Any tips?
>
>
>     This looks similar to my issue....
>
>     https://bugzilla.redhat.com/show_bug.cgi?id=1525104
>
>
> Trial and Error seemed to support that something was turning the sound 
> card off when not in use and the pop was caused by the card being 
> turned on again.
>
> If I start playing a recording within 10s of stopping a previous one 
> then no 'Pop'.  Wait longer than that and I hear the pop.
>
> This link discusses the issue:
>
> https://unix.stackexchange.com/questions/565886/how-to-disable-the-power-saving-for-snd-hda-codec-realtek
>
> ,,,and the suggested workaround appears to have worked for me.  Namely
>
>     As a workaround, you can comment out the following line in
>     |/etc/pulse/default.pa <http://default.pa>|:
>     |load-module module-suspend-on-idle
>     |Afterwards, restart PulseAudio with |systemctl restart --user
>     pulseaudio|.
>
>

I had a number of audio quality issue with Mythtv and Kodi on a system 
that had to use the mini audio analog plug to get the signal to an amp 
without digital connection. I found a number of solutions like HDMI 
splitters that pass on the HDMI, but split out the audio into mini plug, 
Optical, and Coaxial digital.  I've notice no noise or popping on that 
solution.

Jim A


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mythtv.org/pipermail/mythtv-users/attachments/20201102/a122a893/attachment.htm>


More information about the mythtv-users mailing list