Re: Speaker Audio when Headphone connected?
Re: Speaker Audio when Headphone connected?
- Subject: Re: Speaker Audio when Headphone connected?
- From: Jeff Moore <email@hidden>
- Date: Fri, 22 Feb 2008 18:53:07 -0800
On Feb 22, 2008, at 6:46 PM, Paul Haddad wrote: Is it possible in the non-general case?
Not that I'm aware of. The Mac Book Pro I tested had only one output device that was driving both the speaker and the headphones. And, the speaker and the headphones are completely mutually exclusive. I know that or example on my mbp it seems like this might be possible, since when the headphones are plugged in and I reboot I hear the reboot chime through the external speakers.
The boot chime always comes out of the speaker on Intel machines.
Thanks for the response!
On Fri, Feb 22, 2008 at 8:07 PM, Jeff Moore < email@hidden> wrote: Generally, this isn't possible. On most of our hardware, the headphones and the speaker are driven from the same device and are mutually exclusive. On Feb 22, 2008, at 5:55 PM, Paul Haddad wrote: I keep getting requests to have PTHVolume (http://pth.com/products/pthvolume) support the ability to switch the Audio Output to built in speakers even if a headphone is connected. I know the hardware technically supports this but is this something that can be controlled via CoreAudio or is it locked up in the Kernel Driver and thus practically inaccessible?
--
Jeff Moore
Core Audio
Apple
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