Audacity Forum

kozikowski wrote:Which setting is the same as Effect > Amplify (Default)?

Not sure what you mean Koz.
Do you mean "What Sensitivity slider setting is equivalent to pre-amplifying the noise sample to 0 dB"?

I'm not a "Windows person", but I think that you need to use Visual Studio 2008 rather than 2010 to build Audacity.

It used to be Genarate -> click track Yes, that's where it should be. Do you have any Nyquist plug-ins available? I don't remember exactly which plug-ins were included in 1.3.11, but you should have some of these: Effects: High Pass Filter Low Pass Filter Vocoder Generate: Click track Risset drum P...

There's been a couple of cases where bad DC off-set like that has been caused by buggy sound card drivers. It may be worth checking if there are any updated sound card drivers available for your computer. (see here: http://wiki.audacityteam.org/wiki/Updat ... ce_Drivers )

Could you check the location of the file "nyquist.lsp"
It should be in the same directory as lots of other .lsp files including "dspprims.lsp"

I've just checked the plug-in against SoX
RMS Calculate: -23.96 (rounded to 2 decimal places from -23.9576)
SoX: -23.9583

(it's possible that WaveLab could be a little bit out)

OK, here's the updated version RmsCalculate.ny
Does this give results closer to those from WaveLab?

"Undo" does not remove the captured profile (yes I'm sure) ;) In Audacity 1.3.13 the " Effect > Amplify a noise segment before capturing a Noise Reduction profile " is not necessary. The new "Sensitivity" slider does that. Sensitivity = 0 is the same as no amplification...

Doh. I've spotted the problem.
I'll post a corrected version shortly.

would it be easy to add the peak value as well? That's the part that uses a lot of memory (if it is to be done accurately), however there's a little trick that you can do in Audacity to get the peak value which is really fast. 1) Select the track 2) Effect menu > Amplify ( Don't click OK) The defau...