On Thu, 23 Oct 2008 17:48:51 +0100, Andy Green wrote: > As I understood what Matt explained today, it seemed there was a danger > that what these changes did was simply attenuate all the mic audio alike > along with the buzz. > > It would be highly interesting clue if that was not the case...
If I am not horribly mistaken by all the knobs and dials that I turned, it is actually possible to have higher mic amplification when mic audio is routed through PGA than otherwise. Signal to noise ratio (or rather signal to buzz ratio) is getting way better! I just made another test call with the original profile (no buzzing this time, bummer) and then switched to the modified gsmhandset.state and back repeatedly. The modified profile made a faint buzzing appear - however, mic audio was louder on the receiving end of the conversation. It was described to me to be just like the difference between being talked to by a person facing away from you (original profile) and a person talking to you face to face (modified profile). Another point made was that mic amplification seems to be a little high with my new settings, resulting in a bit of distortion or clipping. Greetings, Jan _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
