From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Drake <dsd@laptop.org>
Subject: Microphone bias
Date: Mon, 13 Jul 2009 09:50:45 +0100
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Hi,

I'm working on CX20582 HDA support for OLPC.

We have a choice of 50% or 80% microphone bias on the 2 microphone ports
(one inbuilt, one socket for external devices). Any suggestions on which
one we should pick or how to decide?

We can't hear any difference between the 2 settings..should we choose
50% for potential power savings?

Daniel