[mythtv-users] High Volume during commercials
Jay R. Ashworth
jra at baylink.com
Wed Oct 17 17:00:11 UTC 2007
On Tue, Oct 16, 2007 at 08:30:03PM -0600, Brian Wood wrote:
> The question might be is it really a "volume" difference you are hearing
> or something else.
>
> Often the audio on commercials is highly processed, and what you are
> hearing is a difference in "psycoacoustic perceived loudness" and not
> really "volume".
Specifically, the audio on commercials is often analog-compressed, and
the *average* level is therefore much higher, while the peak is not.
> This sort of thing can be very difficult to detect and/or control
> without an actual human in the loop.
>
> I seriously doubt is there is any truly effective way to automate a
> solution to this problem, at least not at consumer prices.
"dialnorm".
I think.
Cheers,
-- jra
--
Jay R. Ashworth Baylink jra at baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://baylink.pitas.com '87 e24
St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
More information about the mythtv-users
mailing list