Audacity Forum

Why do you want to use FFT? It will become rather complicated. I would use the zero crossing rate as a pitch estimator. Alternatively you could use a filter bank in a similar way to how DTMF tones were originally decoded, for example along the lines of: (defun filter (sig n) (setf hzlist (case n (1...

I extracted from source files code of audacity 2.0.5 (ChangePitch.cpp and headers) and i need to know where (how) are calculated specific tones. I know things or two about c++ but i couldn't yet find function which is responsible for calculating those frequencies. Look at line 460 in ChangePitch.cp...

amiava9191 wrote:as soon I click the record button it starts to record

You may need to raise the "Sound Activation Level" : http://manual.audacityteam.org/o/man/tr ... n.2Foff.29

(is it "selected audio"? Could that be "Labelled Audio" ? http://manual.audacityteam.org/o/man/edit_menu_labeled_audio.html That only applies if you have "labels" http://manual.audacityteam.org/o/man/label_tracks.html If you're looking for the "Cut" and "...

Try using "Generate > Silence" http://manual.audacityteam.org/o/man/ge ... ml#silence

"FF" may be a "reset" event.

Delete the parts that you have destroyed (the bits with no sound), then import the files back in again.
See here for how to safely handle projects, particularly the part about "dependencies": http://manual.audacityteam.org/o/man/au ... jects.html

A 3 hour recording should be fine on any modern* operating system as long as: 1) The computer is stable. 2) The sound card is fully supported by the operating system. 3) You are using a sample rate of 44100 Hz (default, and CD standard) or 48000 Hz (DVD standard). 4) The machine has adequate storage...

I see at one time you were thinking about R128. Did you ever think you might implement it? I've read up on R128, and while it is relatively easy to implement, I have reservations. At the end of the day I think what will be most useful for users generally is an effect that works as "well" ...

PedroV wrote:When I export to MP3, the last track is changed somehow.

Can you give step by step instructions for how we can reproduce the issue.