Re: [Audacity-devel] Clipping

[Richard A. <ri...@au...>]

On Wed, 2008-01-09 at 00:13 -0600, Leland wrote:
> On 1/6/08 7:51 PM, "Martyn Shaw" <mar...@go...> wrote:

> Okay, so I enabled "Show clipping", generated noise with a 30 minute
> duration, amplified it by 8dB (allowing clipping) and hit OK.  The noise was
> amplified fine and I got a really nice red wave on my display.  :-)
> 
> I'm able to scroll the display without issue as well.  I do see that
> Audacity uses 100% of one of my CPUs while scrolling, but it does go back
> down when I stop.
> 
> So, I guess I'm not seeing the problem.  Any other methods I might be able
> to use to reproduce?

Not a reproduction, but length-for-length enabling show clipping is much
slower when reading from an original .WAV file than from data stored in
audacity (not surprising). I'm already seeing about 2 seconds delay
using a 30 minute mono file at 22050 Hz. Note of course that amplifying
the file to cause clipping copies the data into the project folder,
which speeds things up.

Richard