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Playback volume very low on playback

Posted: Mon Aug 07, 2006 2:24 pm
by marijn

This has been troubling me for a few months already. I have a VIA M1000 that is using minimyth for a while now. The box is connected with the tv with a VGA cable and an audio cable from the onboard audio card to the tv. This worked ok for quite a while, the audio level of the minimyth box was a little bit lower than that of the tv signal, but no too much. Untill a few months ago when the audio level dropped significantly. I have to turn the volume on the tv up to about 80% to be able to hear anything.

When I telnet into the minimyth box, amixer tells me that the master volum control and the pcm volume control is at 90%. Turning that up results in distorted audio.

The recording level on the backend is (and was) at 90%.

Does anybody have an idea what to look at?



Posted: Mon Aug 07, 2006 3:28 pm
by Pablo
Have you tried playing the recorded programs back using something other than MiniMyth?

I have two PVR-250s in my backend. With different versions of the driver, the PVR-250 has recorded at different volume levels. For a period of time, the volume level was significantly less than the volume level of the tv signal. Thankfully, the newer versions of the driver have fixed this for me.

Posted: Wed Aug 09, 2006 4:42 pm
by Eduardo
The volume comes into play in a bunch of places:
  • When captured in backend hardware (amixer setting)
    When captured in Mythtv (mythtv setting)
    When played back in frontend hardware (amixer setting)
    When played back in frontend minimyth (mythtv setting)
    Finally your TV
My guess would be frontend mythtv setting, check the playback settings, or map the volume keys on your remote and adjust.