NSSound problem with non-standard audio hardware
NSSound problem with non-standard audio hardware
- Subject: NSSound problem with non-standard audio hardware
- From: Ron Fleckner <email@hidden>
- Date: Sat, 17 Mar 2007 20:26:38 +1100
Hello,
I'm having an issue with NSSound when used on a machine which has
third party non-standard audio hardware attached/installed. I think...
Some users of my app have reported that the sounds it produces
(NSSound instances) are stuttering or erratic. The machines on which
the problem occurs are of a wide variety, from old to new, low to
high specs. On further investigation I discovered that all the users
who reported the problem had some type of audio hardware attached.
This was the only constant I could see amongst the problem machines.
But a friend who has some external audio hardware didn't have the
problem.
The sounds are played in the target method of an NSTimer instance.
At first I thought that the timer was the problem and might have been
'swamped' by overly busy systems running too much software at the
same time without enough RAM or CPU grunt. However, I've a good
reason to believe that the timer is working fine, because another
event which the same timer runs when it plays the sound is occurring
at the right time.
I know that this is not the Core Audio list, but I think the members
of the Core Audio list probably wouldn't have much too say about
NSSound.
It'd be great if someone could say, "Oh, just do X to fix that", but
somehow I don't think that's going to happen.
Would anybody have any idea of where I should look to overcome this?
Wild guesses would be alright.
Thanks,
Ron Fleckner
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