[mythtv-users] Hiss intermittently replacing audio on playback

Jean-Yves Avenard jyavenard at gmail.com
Wed Aug 3 23:31:03 UTC 2011


On Monday, 1 August 2011, D. R. Newman <d.r.newman at e-consultation.org>
> For the last month or so, I have had an intermittent problem on
> playback. Sometimes, when starting to play back a TV recording, instead
> of getting the soundtrack of the programme, I get a loud hiss. If I move
> forward or back and then start playing again, it often picks up the
> audio track and starts playing it. I do not get the same problem when
> playing the same file in mplayer or Dragon Player.
> Where should I start looking to track down the cause of this problem?

Using pulse audio I assume?

A few options to get this pulse issue: use native Alsa. Use ALSA:pulse
driver (which is pulse's alsa emulation).

If you do want to use native pulse driver for some reason, change the
sampling rate on the pulse audio server from the default 44.1kHz to 48kHz.
Pulse has issues when resampling audio
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