[mythtv] prebuffer audio related?
Steven
mythmail at richardstraat.homedns.org
Thu Oct 28 08:12:20 UTC 2004
> I still can't see what audio driver you are using? Intel ICH is iffy
> for example
It's the audio chip onboard the ATI9100IGP chipset and it uses the
atiixp alsa driver.
>
> You appear to be recording at 44Khz. Can you try recording at 48Khz and
> see if this helps?
>
> What are you using as an amp? Is it spdif connected to an AV amp? What
> does the amp say about output rates?
>
I have a Sony receiver connected with spdif and it says PCM 48 on the
display when playback starts.
I was indeed recording at 32Khz (wich is the default MPEG2 settings I
believe?) so I changed to 48Mhz and now the skips are less frequent and
also less noticable.
2004-10-28 09:10:47 Changing from None to WatchingLiveTV
2004-10-28 09:11:51 prebuffering pause
2004-10-28 09:13:03 prebuffering pause
2004-10-28 09:15:03 prebuffering pause
2004-10-28 09:15:05 prebuffering pause
2004-10-28 09:23:14 prebuffering pause
2004-10-28 09:23:23 prebuffering pause
2004-10-28 09:24:55 prebuffering pause
2004-10-28 09:25:02 prebuffering pause
2004-10-28 09:26:24 prebuffering pause
2004-10-28 09:33:44 prebuffering pause
Using /dev/dsp Av sync is perfect. Using ALSA:spdif or ALSA:pcm.front
audio is a little behind but no prebuffering pause at all.
> I'm thinking that there is some kind of resampling going on here, and
> the audio driver is broken and not reporting free space correctly?
>
Probably so.
But playing back the recordings with 32Khz audio in them with mplayer
also gives me PCM 48 on my receivers display but the file plays fine.
> Ed W
Thanks for your help.
Steven
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