Audacity Forum

record and stop won't probably enough. Some users might want to do transcriptions or translations with Audacity, which requires global shortcuts for play, play at speed, short/long seek etc. For most applications, the general keyboard mapping won't work. This makes it necessary to save different lay...

Sure, I can explain the code. As it is, the code uses only a test sound, namely a frequency sweep from 440 to 880 Hz. (the code was:) ;; Zero crossing rate ;; Size = amount of samples that are averaged ;; hop = samples to advance, ;; determines the sample rate of the result ;; amp is used to disable...

There are two standard test tones, the older is 3000 Hz and the newer one, 3150 Hz. I don't think that my code is suited for the demodulation, only for the carrier tracking because the integration time is probably too long. I think the polar discriminator code is more appropriate. However, I don't k...

That's about the best to expect:
https://www.dropbox.com/s/j85k5rsl4rrmxtu/maghi.flac
Note that the background vocals/choir can't be removed.

There's certainly a lot to discover in that plug-in. It is actually a program within a program. That's the main reason why it isn't included in Audacity. I always try to improve the algorithms. Especially "Remove/Isolate Vocals" should eventually be smarter in order to really concentrate o...

Some additional facts about "Set" and related functions. 'Setq' is widely regarded as obsolete. You can always use 'setf' since it combines 'setq' and 'setf' and uses either depending on the context. 'Set' is useful to set a global variable when a variable of the same name is within a loca...

I am glad that you're fairly happy with the result. I've used a lot of things that are actually not yet published. Firstly, I don't use the Audacity vocal remover because it produces only a mono output and does not support "Isolate Center". About half a year ago, I've written my own tool f...

Here's a code snippet that might be useful. It creates a control signal with the proper zero crossing rate. It should theoretically demodulate the signal as well, if the hop size is one. One has also to divide by half the peak and subtract 1 to get a signal going from -1 to 1. You will observe that ...

With "sparkly" I mean the instrumentation you hear in the stem at the 0:30 mark: https://soundcloud.com/tiago-pedro-ti/stem-men-in-this-town-shakira In the 1st part you hear this thick beat above it, which you also hear throughout the verses in the original song, minus those sparkly instr...

I'm not sure what you mean by "sparky". The best way to re-establish a beat is probably underlaying a new one (128 bpm). The bass itself has to come from the vocal removal (low cut at about 140 Hz). I've essentially managed to isolate the beat (kick and snare). The problem is that there wi...