Re: AudioDeviceRead / HALOutputUnit
Re: AudioDeviceRead / HALOutputUnit
- Subject: Re: AudioDeviceRead / HALOutputUnit
- From: Jeff Moore <email@hidden>
- Date: Wed, 14 Jan 2004 11:10:54 -0800
Yes, for two primary reasons:
First, the Output AU does all the hard work of being a proper HAL
client. There are a lot of details involved with this for a general
applications, so the work saved by doing it is immense, especially if
you are already using the Output AU for other things.
Second, not every device supports AudioDeviceRead. Currently, the
popular examples of devices that don't are Digi hardware and the
iSight, and the future has more on the way.
Generally speaking, I recommend that everybody use the AUs rather than
using the HAL directly.
On Jan 14, 2004, at 7:25 AM, Chandrasekhar Ramakrishnan wrote:
If one already has code that uses AudioDeviceRead to get audio input
that you feed into an AU graph, is there any reason to switch to the
HALOutputUnit input capabilities?
--
Jeff Moore
Core Audio
Apple
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