Audacity Forum

Mobile phones have forced the introduction of several special "gates". The algorithms can generally be summarized as VAD (Voice Activity Detection). Its purpose is to gate all that isn't voice. This includes background sounds, echoes ("Echo Cancellation") and cross-talk. The simp...

I've compared the different uploaded files. 8 files in total: test.aiff test_amd.aiff 01-s.aiff 01-s_amd.aiff ... 03-s_amd.aiff Both test.aiffs have the same length and seem to have the same tags. But those play both on the iPod, Ipresume? All split files, as produced by Audacity are 18 Bytes longer...

I see the objection to renaming "Play" to "Preview", so I'm easy on that. I don't think "Return Audio" is a good wording choice although accurate - if returning does not change the audio much, user may wonder if they have really applied the effect. I mildly prefer Robe...

added 3 multi export testaiff files to itunes library checked to see if they were aiff changed preferences from AAC to aiff control click Create Aiff Version sync to ipod file splits that itunes created played in itunes original file splits that Audacity created did not play One file was 4 seconds ...

I don't know, but I think the first lines should all be aligned at the very left.
You have an indentation of 4 spaces.

Clipping is only an issue for the export. All is calculated with 32 bit floating point numbers. Here's some modified code for the Nyquist prompt, implementing the fixed rotation/reflection: ;; hard-coded values (= control parameters of the plug-in) (psetq delay 0.03 decay 12.0 count 10 angle 180.0 n...

That's certainly a starting point. I would have kept the normalizing - you'll never know how loud the whole stuff gets in the end, especially if you're still experimenting. You could now implement the projection formulas (those with sin and cos) in the 'nextflip' function. You could thus pass an ang...

The "(setq s (s-rest 0))" simply resets the original input sound to one of zero length - to free memory. "(aref s 0)" is referring to the left channel and that's a sound (not numbers. Therefore, you should use 'mult' or 'prod' or 'scale' for multiplication, instead of '*' which w...

There is a physical problem with accurately plotting pitch over time. Some algorithms are "faster" than others, but all pitch detection algorithms that I'm aware of trade off pitch accuracy against time accuracy. Human hearing is quite remarkable in this respect in that it is possible to ...

Have you a short sample sound?
A audio engineer would most likely use the equalizer to emphase certain guitar-typical frequencies.