Joerg Reisenweber wrote (ao):
Am Do 4. Juni 2009 schrieb William Ray Yeager:
A critical friend of mine who has mocked my purchase of an
unfinished phone just told me that our connection was as good as a
landline! I followed Warren's advice below and lowered control.5 to
80 (I'm naturally conservative) which has (so far) completely removed
the previously unbearable buzz my friend had observed on the other end
of the conversation. Wow. Now I might not need to solder in a new
capacitor!
For the demi-newbie:
Open /usr/share/openmoko/scenarios/gsmhandset.state
Scroll down to control.5 and in that section change the line under
'Mono Playback Volume' from value 110 to value 80.
Save file.
Call OM skeptic.
Gloat.
Warren said:
I've always had people complain that they got a lot of static when
they called me - I thought I had the buzz problem in fact. I just
spent the time to figure out how to use alsamixer to tweak things, and
if I set control.5 (Mono Playback Volume) to 83 from above 100 like
I've seen in other gsmhandset.state files (ranging from 100 to 110
seems normal), I get a perfectly clear signal on the other end.
Another unconfirmed taletelling about Buzzfix by ALSA settings. Don't you
think we checked this prior to coming up with a hw-rework after months and
months of wrestling with this issue?
Joerg, I also tested this by lowering Mono to 72 with alsa-mixer on my
A6 OM2009 Test4 after reading Warrens mail, and I now no longer sound
like sitting on a motor lawnmower during a call.
Maybe this is something different than the Buzz Issue, but it improves
sounds for the other party a lot.
This btw is in The Netherlands. After reading that less than 5% of the
owners are hit in practice by the Buzz Issue, I was pretty surprised to
be one of them. But now it seems the noise is not due to the Buzz Issue?
With kind regards, Sander
--
Humilis IT Services and Solutions
http://www.humilis.net
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