Re: Speaker Audio when Headphone connected?
Re: Speaker Audio when Headphone connected?
- Subject: Re: Speaker Audio when Headphone connected?
- From: Brian Willoughby <email@hidden>
- Date: Fri, 22 Feb 2008 19:46:11 -0800
Hi Jeff,
It must be a matter of language, because what you seem to be trying
to communicate, and the words you're actually writing, are not
entirely in accord.
Observation alone is enough to confirm that Apple's boot code is able
to direct the single audio signal to the built-in speakers, even when
headphones are plugged in. Apparently, users and developers want to
do the same thing at other times after startup. If Apple has no
plans to publicly support any access to this internal feature, then
you're saying something quite different, and nobody could argue with
that theoretical position.
"Mutually exclusive" means nothing more than that you cannot have
both audio outputs operating at the same time. This is a well-
understood fact that is written in stone (or etched in silicon, as it
were). The method for choosing between these two mutually exclusive
options is completely independent of the fact that only one can
operate at a time. There is no semantic, logical, or hardware design
correlation between the two statements.
Brian Willoughby
Sound Consulting
On Feb 22, 2008, at 19:15, Jeff Moore wrote:
The speakers and the headphones are mutually exclusive. Whether
this is because of hard wiring or flipping bits in a register
somewhere really doesn't matter. This is just another one of the
facts about the hardware you have to deal with. There's no secret
back door to make it work different.
If you don't want the sound coming out of the headphones, just
unplug them.
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