[mythtv-users] mythfrontend on Raspberry 3 B+ audio issues.

[Mike Chinander]

Can you run ffprobe (or similar) on a PBS recording and on a recording from
another channel to see how the audio (and video) is different? What are you
playing the audio on (TV, receiver, etc.)?

On Tue, Nov 13, 2018 at 9:01 PM James Abernathy <jfabernathy at gmail.com>
wrote:

>
> It is way better to use ALSA audio (see
> https://www.mythtv.org/wiki/Raspberry_Pi#ALSA_Audio). It does not have
> this problem and also makes for smoother playback.
>
>
> I’ll reread the ALSA stuff and see if I can get it working.  So far
> nothing but static.
>
>
> I do not have a mythtv:ALSA device. and all other  ALSA selections product
> the static/noise. aplay -L shows CARD=ALSA, DEV=1 as IEC958/HDMI, but it
> also produces noise/static only
>
>
>
> OKAY, I finally pulled my head out of a dark place and figured out that I
> need to create the ‘$HOME.asoundrc’ file.  Then I selected
> mythtv:CARD:ALSA.  That gave me good HDMI sound except for the PBS station
> either recorded or liveTV.
>
>
> The newly created mythtv:CARD:ALSA device looks exactly like the default
> ALSA device, but it doesn’t work.  So I’ll blindly stick with
> mythtv:CARD:ALSA even though I’m on the latest Raspbian and it has the
> IEC958/HDMI device. I’ll keep playing with the audio to learn why.
>
> The only audio problem now is live or recorded tv from a PBS station. you
> hear the sound, but it drops out every few seconds.  The same station and
> recording have no issues on KODI on the RP3 or on my X86 frontend.
>
> The log is in /tmp, but it didn’t should any audio issues.
>
> The video got smoother with ALSA audio as you stated.
>
> Thanks,
>
> Jim A
>
>
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