Re: Fast UI for Core Audio ?
Re: Fast UI for Core Audio ?
- Subject: Re: Fast UI for Core Audio ?
- From: Brian Willoughby <email@hidden>
- Date: Thu, 3 Feb 2011 14:15:03 -0800
On Feb 3, 2011, at 10:46, email@hidden wrote:
I am currently developing an audio app with Core Audio and iOS. I
need the fastest UI to trigger sound events with the lowest
latency. I've testing Cocos2d (that is built on top of OpenGL) but
I found the latency is still too big.
Any advice?
André
ps: I hope this is not too off-topic
Technically, UI is off-topic for this CoreAudio mailing list.
However, your assumptions are most likely wrong if you think the UI
is causing latency.
The latency is entirely due to the buffering in the audio playback
technology you're using. I have not used an OpenGL UI, but I do not
believe that it adds any latency at all - if it does, it's probably
significantly less than the audio latency.
What you really need to do is examine the audio playback technology
that you are using, learn how it works and where the latency is
coming from. Then determine whether you can change to another audio
playback technology with lower latency. At some point, though, you
have to deal with a certain amount of latency in any general
computing device that handles audio. You should be able to get it
below the perceptible level.
Brian Willoughby
Sound Consulting
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