From: Tony Vroon <tony@vroon.org>
To: Daniel Drake <dsd@laptop.org>
Cc: alsa-devel@alsa-project.org
Subject: Re: Microphone bias
Date: Mon, 13 Jul 2009 11:55:42 +0100 [thread overview]
Message-ID: <1247482542.5461.1.camel@localhost> (raw)
In-Reply-To: <1247475045.1759.5.camel@polyethylene>
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On Mon, 2009-07-13 at 09:50 +0100, Daniel Drake wrote:
> 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?
For the external devices, it tends to depend on the headset. I would
suggest going to eBay or a random computer shop and getting a few
different ones. Some may require 80% to produce a usable signal,
particularly the cheaper ones.
> We can't hear any difference between the 2 settings..should we choose
> 50% for potential power savings?
If your internal mic works fine on 50% bias I would keep it there, yes.
> Daniel
Regards,
Tony V.
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prev parent reply other threads:[~2009-07-13 10:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-13 8:50 Microphone bias Daniel Drake
2009-07-13 10:55 ` Tony Vroon [this message]
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