[mythtv-users] Why is my 350's audio so much l-l-louder! than the 250's?

[f-myth-users@media.mit.edu]

    > Date: Thu, 12 Jan 2006 12:19:45 +0000
    > From: Ant Daniel <antdaniel at gmail.com>

    > From my reading of the ivtv list I know that there are differences
    > between sound levels of 150/500 & 250/350 but I thought that the
    > 250/350 was consistent.

Apparently not.  See below.

    > It might be worth checking on with ivtv list if there should be a
    > difference in sound between these.

I CC'ed my original message to ivtv-users, and Hans replied, but only
to that list:

    > Date: Thu, 12 Jan 2006 19:11:33 +0100
    > From: Hans Verkuil <hverkuil at xs4all.nl>

    In general it is next to impossible to make any assumptions on the 
    volume level captured by a card: it depends on the make, model, chips 
    used, tuner used, signal quality, etc. I have two pvr350 cards, one an 
    old model, the other new and they have totally different recording 
    levels.

Does anyone know if a per-card audio level is already present in SVN?
I couldn't find any mention of it in the archives for the -dev and
-commit lists, but I don't run SVN.  I'd be perfectly happy to open a
ticket for this issue, assuming that it's actually going to be viewed
as a bug and not a feature request without code; would any developers
care to weigh in?

(Note that people who have entirely different brands of cards mixed
together and/or both analog and digital sources -really- shouldn't be
expected to have them all have similar levels without the ability to
individually adjust 'em...)