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Date:      Tue, 18 Sep 2012 23:00:35 -0700
From:      Doug Barton <dougb@FreeBSD.org>
To:        matt <sendtomatt@gmail.com>
Cc:        freebsd-current@FreeBSD.org
Subject:   Re: squealing/whistling audio
Message-ID:  <50595F83.9030008@FreeBSD.org>
In-Reply-To: <50595E93.9080908@gmail.com>
References:  <5059194F.4090002@FreeBSD.org> <50595E93.9080908@gmail.com>

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On 9/18/2012 10:56 PM, matt wrote:
> On 09/18/12 18:01, Doug Barton wrote:
>> Sometime in the last couple of months an old problem has resurfaced on
>> HEAD, a sort of squealing/whistling sound in the audio, even without
>> anything playing. The sound is similar to the wind whistling through
>> something.
>>
>> Before I blindly go off on a bisecting spree, does anyone have a
>> suggestion as to where I might look?
>>
>> Doug
>>
>>
> Electrically that's usually oscillation (too high gain or too much
> electrical feedback) or an unshielded input.

Sorry, I should have been more clear. This problem doesn't occur in
windows, or linux, and last time I checked, didn't occur in freebsd 8. I
have everything irrlevant zeroed out in mixer.

Doug

-- 

    I am only one, but I am one.  I cannot do everything, but I can do
    something.  And I will not let what I cannot do interfere with what
    I can do.
			-- Edward Everett Hale, (1822 - 1909)



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