At 10:57 PM 6/12/2005 -0500, William Powers wrote:
>I have previously posted regarding a PVR-500 being too loud in a mixed
>system (PVR-250 + PVR-250 + PVR-500) with ivtv versions since 0.3.4m.
>
>(See -
>http://www.gossamer-threads.com/lists/ivtv/devel/21119?search_string=wepprop
>;#21119,
>et al)
>
>The attached patch allows the PVR-500 volume to be attenuated via an
>option to the cx25840 module. I understand this may not be the "best"
>or "right" way to solve the problem, but it does seem to work.
>Suggestions for improvement are appreciated. For me, the patch (made
>against ivtv-0.3.6e) along with a modprobe.conf entry of
>
>options cx25840 volume=60
>
>does the trick. Note that, according to the source, cx25840 volume is
>adjusted in 1/2 dB increments between 18 dB and 96 dB.. The default
>value is 36, which would appear to mean that the cx25840 normally runs
>at full volume.
>
>Bill
Bill,
Thanks for this. I've implemented this in a modified version of
0.3.4j. I'll let you know if I run into any problems.
One thing, though, I don't fully understand how a value of 36 (18dB if I
understand things correctly) represents full volume as you describe above.
--tim
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