Re: DC Offset on microphone input

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ÐÐ Mon, 10 Jan 2011 08:28:30 +0200
Sergei Steshenko <steshenko_sergei@xxxxxxx> ÐÐÐÐÑÐÐÐ:


>> http://akhil.homelinux.org/drop/a273/test.wav - this is a sample
>> recorded with $ arecord -D hw:1 -c 1 -r 48000 -f s16_le test.wav
>> 
>> At start and end microphone was muted and amplitude goes exactly at
>> centre. But when microphone is switched on amplitude becomes slightly
>> shifted.

> Well, the "official" way would probably be to create .asoundrc
> (already a drag) and to it use LADSPA hosting facility - using LADSPA
> you can process your stream by HPF (High Pass Filter) - there is a
> precooked LADSPA HPF plugin.

LADSPA works not well with some applications. Pulseaudio some times
hangs with it. 32bit app's do not works with LADSPA ON 64bit OS.

-- 
ÐÐÑÐÐÑ ÐÑÐÐÑÐÐÐÐÐÐ aka AkhIL
ÐÐÐ ÐÐÐ 10 12:34:26 NOVT 2011
Mon Jan 10 06:34:26 UTC 2011
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