Audacity Forum

IIRC the spectrograms generated by the free program SoX allow you to specify a frequency window.

[ but SoX is not very user-friendly : is has a command line interface ]

If you re-sample a copy of your audio by dividing its sample-rate by four, that will effectively allow you to zoom-in on the lower frequencies on the spectrogram ... down-sample by factor of 4.gif [click on this image to see it in its entirety]. NB: you'll have to click-on "replot" after r...

Using the log(arithmic) scale makes the lower frequencies more conspicuous ...

"Laryngitis" as effect name doesn't seem to be much of an ear catcher The laryngitis effect is only true of a window size 1024 and hop size around 256 on a sample-rate of 44.1KHz. The sliding hop-size effect I had in mind would produce a range of effects over the selected audio , not just...

Robert J. H. wrote:Do you want to simulate a slow motion kick into the groin?

the tempo shouldn't slow-down , more like progressively distorted : progressively comb-like ...

... The window size is 16784 samples with 50 % overlap. Here's the code: (defun cosine (freq) (abs-env (hzosc (snd-pwl 0 *sr* (list 0 freq (1- *fr*)freq *fr*)) *table* -90))) (setf snd (send class :new '(sound))) (send snd :answer :isnew '(snd) '((setq sound snd))) (send snd :answer :next '() '( (l...

...I shall go back to recording in mono. I saw on another post someone say "people these days usually prefer stereo" which is why I made that change a few days ago. You can make mono into pseudo-stereo , e.g. with Steve's Audacity plug-in ... http://wiki.audacityteam.org/wiki/Nyquist_Effe...

... In this setup the room is soundproofed, but I put a double moving pad on the desk to get rid of slap effect. http://www.kozco.com/tech/audacity/pix/JMASoundShoot.jpg There's a box-gadget with lined pointy acoustic-foam which reduces the reflections from the room ... http://forum.audacityteam.or...

ram_nagapuri wrote:... The code actually removes the noise, but the problem is that the resulted signal has some kind of an echo effect.. So any body knows what's wrong?

Ringing artefact ? ... http://en.wikipedia.org/wiki/Ringing_artifacts

For some reason blablabla.com website gets a double-red warning on WOT ...
https://www.mywot.com/en/scorecard/blablabla.com

the "exclusive" watermark won't be removable by Audacity or any other software.