Re: Proper API for selecting devices
Re: Proper API for selecting devices
- Subject: Re: Proper API for selecting devices
- From: Brian Willoughby <email@hidden>
- Date: Fri, 19 Nov 2004 13:46:40 -0800
[ On computers that have a built in microphone only this device is found,
[ not the physical line-input. At least this is what users reports.
[
[ So how should we detect all devices?
AFAIK, the microphone and line-inputs *are the same device*
i.e. you cannot connect to the line-input without interrupting any
applications which might be using the microphone. For that reason, it is often
better to let the user configure the Built-in audio device using the System
Preferences Sound Panel, and select among the inputs (data sources) there.
The purpose of the HAL is to present the hardware exactly as it is. If the
microphone and line-input were truly distinct and independent devices, then
they would be listed separately. If you want to present things differently,
then that is up to your application code.
Brian Willoughby
Sound Consulting
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