Understanding Find Clipping result?

Help for Audacity 2.x.x on Windows.
Forum rules
ImageThis forum is for Audacity 2.x.x on Windows.
Please state which version of Windows you are using,
and the exact three-section version number of Audacity from "Help menu > About Audacity".


Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
Post Reply
pato
Posts: 21
Joined: Sat Aug 08, 2015 5:30 pm
Operating System: Windows 10

Understanding Find Clipping result?

Post by pato » Fri Nov 17, 2017 6:47 pm

[Question also posted in Facebook Audacity Voiceover Users group; no response yet.]

I need help understanding results of the Analyze > Find Clipping procedure applied to an existing audio track. The procedure yields a Clipping track showing where (if at all) clipping occurred in the audio track. Here is a sample: In this Clipping track at the point where clipping was detected, what do "1 of 1", "6 of 6", "28 of 28" etc. mean? Thanks.
Clipping example.png
Clipping example.png (23.61 KiB) Viewed 290 times
Last edited by steve on Sat Nov 18, 2017 1:39 pm, edited 1 time in total.
Reason: Put image inline to preserve board layout

pato
Posts: 21
Joined: Sat Aug 08, 2015 5:30 pm
Operating System: Windows 10

Re: Understanding Find Clipping result?

Post by pato » Fri Nov 17, 2017 6:51 pm

BTW: I use Audacity v2.1.3 on Windows 10.

Trebor
Posts: 4510
Joined: Sat Dec 27, 2008 5:22 pm
Operating System: Windows Vista

Re: Understanding Find Clipping result?

Post by Trebor » Fri Nov 17, 2017 7:46 pm

pato wrote: what do "1 of 1", "6 of 6", "28 of 28" etc. mean?
See ... http://manual.audacityteam.org/man/find_clipping.html

kozikowski
Forum Staff
Posts: 40458
Joined: Thu Aug 02, 2007 5:57 pm
Operating System: OS X 10.9 Mavericks
Location: Los Angeles

Re: Understanding Find Clipping result?

Post by kozikowski » Fri Nov 17, 2017 11:12 pm

I suspect you have 28 overload points and the software is trying to label every one of them. Drag-select that little chunk and Control-E Zoom into it. I expect it to expand into billions of overloads.

The bad news is you usually can't recover from something like that. If it overloaded before Audacity got to it, that's the end of the world.

You're recording massively too loud. You should be recording with your peaks between -6dB and -10dB peaks on the meter and timeline about 50% or so. I would change back to the Waveform timeline because it's a lot easier to see problems like this.

Image

Also, you're set for sample rate of 22500 (on the left) which is a sound quality slightly better than AM radio.

Koz

Post Reply