Audacity Forum

Another possible difficulty:

There doesn't seem to be a input control.
Enter "-10" as noise reduction factor

--> 36 dB boost in my specific sample audio (!)

Is there a better software package for Linux for generating clean test signals in raw PCM or WAV format? http://sox.sourceforge.net/ The on line manual for SOX is very detailed. In which regard should it be better than Audacity? Audacity is a really good choice, especially if you familiarize yourse...

(snip) Note that even with the smoothing advanced to "1," there are still wineglass sounds at the breath gasp — about 4.3 sec. Without that advance, the hollow gasp is prominent. The setting should probably be even further advanced for a final presentation. Sounds like that are the red flag for per...

That's just a short circuit.
Close your fingers around a line-in cable and you'll get something similar.
Either the cables or the adapters are faulty.

Could you provide (i.e. attach) a sample, a few seconds long, as wave file?

As always Robert, precise Nyquist code to reproduce your examples is welcome. Here you are: (scale-db -20.0 (hzosc (sum 4000 (mult 1000 (lp (noise) 10))))) The deviation is +/- 500 Hz. For the profile, the "1000" multiplier would be zero. Because of the lowpass filter, the deviation is of cours not...

As always Robert, precise Nyquist code to reproduce your examples is welcome. Here you are: (scale-db -20.0 (hzosc (sum 4000 (mult 1000 (lp (noise) 10))))) The deviation is +/- 500 Hz. For the profile, the "1000" multiplier would be zero. The reduction settings are -60 dB, 6.0, 0.0, Residue. The pe...

Ok, I've enabled the advanced settings. A higher window size seems to improve the result. However, I suggest to use zero padding up to e.g 8192 samples and treat the whole as a 2048 window (regarding step size etc.) I'm not sure about the analysis/synthesis windows: Is default to use Hann for profil...

I've still have a bad feeling about the frequency smoothing. It should imo be logarithmic and not linear.I' Robert I don't understand. Do you mean the frequency "distance" over which it works should be according to a logarithmic scale of frequency or did you mean some other logarithm? As it works n...

I've still have a bad feeling about the frequency smoothing. It should imo be logarithmic and not linear I'm having trouble with "Frequency Smoothing" and "Sensitivity". I don't know how to advise people about these controls other than "leave them at their default settings" (which defeats the point...