[mythtv-users] Volume normalization

Michael T. Dean mtdean at thirdcontact.com
Sat Mar 13 19:03:10 UTC 2010


<fixed attributions/quoting>

On 03/13/2010 12:57 PM, Justin Garrison wrote:
> > On 3/13/10 10:38 , Joachim Langenbach wrote:
> >> is there a way to normalize audio of Videos, Music, DVD's and
> >> TV?
> >>
> >> I think it would be a greate feature. Espacially because of the
> >> advertisements and the difference between speech and shooting or
> >> other action scenes continuous adjusting of volume is needed.
> >>
> >> Did someone know how to set it up in mythtv or how do you think
> >> this feature should be implemented?
> > There's been discussions on this in the past (check the archives)
> > but the biggest issue (esp with ads) is that the *actual* sound
> > volume stays the same, and only the perceived volume goes up, so
> > there's really very little that can be done to counter that... (For
> > all the sound-tecnhnicality die-hards: I know, this is very
> > simplified, but I think it still covers the essence)
>
>  How about at least volume normalization between tuners? My HD-PVR is
>  a lot louder than my HDHR. On my TV (volume levels from 0-60) the
>  HD-PVR recordings I can hear just fine around 10-20 volume but the
>  HDHR I have to turn up to 40-50 just to make out what people are
>  saying. It gets really annoying when watching TV and I switch
>  channels between something on the HDHR and then something on the
>  HD-PVR. I know some tuners in the backend setup have a volume
>  adjustment setting but I don't think either of these tuners have that
>  option.
>

MythTV currently has no support for automatically adjusting for 
differing volumes between different media--including media recorded by 
different capture devices.

Look up ReplayGain on the list archives and see 
http://svn.mythtv.org/trac/ticket/4804

Mike


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