Forums > MaxMSP

Audio file pops


Dec 12 2008 | 2:25 am

Why might fairly short (~350ms) audio files might snap/crackle/pop in a one-off playback situation? This isn’t necessarily in a MSP environment, but anywhere they’re played. I’ve checked the files–no distortion. I’m not looping and having an interpolation or bad loop point problem. I’m not overmodulating. Sometimes they playback just fine, other times not. Any ideas?

Dec 12 2008 | 2:39 am

On Dec 11, 2008, at 6:25 PM, Brennon Bortz wrote:
> Sometimes they playback just fine, other times not. Any ideas?

Are they all the same sample rate?

-C

Chris Muir
cbm@well.com
http://www.xfade.com

Dec 12 2008 | 3:28 am

Quote: Chris Muir wrote on Fri, 12 December 2008 02:39
—————————————————-

> Are they all the same sample rate?

Yep, all 44.1kHz. To clarify, sometimes one file cracks on playback, and at other times the SAME file doesn’t…

Dec 12 2008 | 7:56 am

Dec 12 2008 | 8:09 am

That’s what I’d assumed, Stefan. Any thoughts on where I might be able to
dig a bit deeper and find THE source of the problem, so that I can fix it??

Dec 12 2008 | 9:32 am

It could as well be a DC offset at the very end of your samples, or generally non zero crossing situations either or both at the beginning and end of the samples. check in peak.

jrp

Dec 12 2008 | 10:02 am

Unfortunately, that’s not it, either…

Dec 12 2008 | 10:03 am

I agree that it is a system-related issue somewhere…just not sure where to
check.

Dec 12 2008 | 6:29 pm

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Forums > MaxMSP