Audacity Forum

antoniu200 wrote: ↑

Sun Dec 13, 2020 3:56 pm

... is there any effect or Nyquist code snippet that would apply infrasound by developer mistake?.

Any old effect can cause that artefact,
(it's existence only excludes profe$$ional plugins, as they would filter it out by default).

antoniu200 wrote: ↑

Sun Dec 13, 2020 12:02 pm

... do you have any idea why that waveform might have gotten that off-centered ...

Inaudible Infrasound.
If you apply a high-pass filter it will become centred, but there will be no audible difference.

That code has a Nyquist Effect implementation, I tried that just now. It seems to me like it has a start pitch higher than the original pitch, then goes lower, then repeats, if the depth is higher than 1 ... The duration of the selected audio also modifies how that effect is implemented. Can select...

rbsalyer wrote: ↑

Sun Dec 13, 2020 8:58 am

... plan B which was copy the initial drum stroke, and paste it into the next place where the drum stroke should be...ending up with two...drag copy those two and paste ending up with four...and then eight and so forth...still a long long process...any suggestions?

repeat

I've never pushed time-track to extremes before, and just noticed it then becomes obviously quantized. For a smooth vinyl "scratching" effect try this code in Nyquist Prompt , (tick "version 3 syntax" box) (setq depth 13) (defun scratch (s-in) (fmosc 0.0 (mult depth (hzosc (/ (get-duration 0.5)))) (...

jademan wrote: ↑

Sun Dec 13, 2020 12:41 am

I get the message, "Video unavailable
This video contains content from WMG, who has blocked it in your country on copyright grounds."

The (free) AI software is called Spleeter ... https://www.youtube.com/results?search_query=+Spleeter

antoniu200 wrote: ↑

Sat Dec 12, 2020 7:01 pm

I tried that multiple times, but I cannot re-create it using time track ...

You have to have the vocal separate from the music, and only apply the speed-change to the vocal, (not to the music).

JenkinsEar wrote: ↑

Sat Dec 12, 2020 10:11 pm

.. Do we have an Audacity problem? Or Zoom? ...

Or Windows: it can be set to mute things like Audacity when there are incoming (zoom) calls ...


Also Windows can assign exclusive control of sound-output to one program, (no sharing) ...

DangWang wrote: ↑

Sat Dec 12, 2020 9:40 pm

... I do know that songs can't be split into their individual parts after it's already been mixed...

Artificial Intelligence is nearly there ... https://youtu.be/IHSGrGXp_oo

... Is there a way to do this for central tracks ... Isolate center ... isolate centre.png https ://manual.audacityteam.org/man/vocal_reduction_and_isolation.html Mid-side decoder plugin may be faster ... https://wiki.audacityteam.org/wiki/Nyquist_Effect_Plug-ins#Channel_Mixer https://www.voxengo.c...