Re: [music-dsp] music-dsp Digest, Vol 20, Issue 13

On Fri, Feb 10, 2017 at 9:56 AM, Martin Hermant wrote: > hi guys, > we are currently developing an audio looper (soon to be released in opensource!) > I?m facing the classical textbook case problem of glitch/pop free looping > >... > fades in / out is a simple solution

Re: [music-dsp] ± 45° Hilbert transformer for pitch detection?

This Kalman Filtering is over my head unfurtunately. But there are also artefacts from modulating the filters, I am not sure if it would be worth the effort to improve the estimate with Kalman filtering in this case. The algorithm also finds a matching pitch on chords in same cases and it

Re: [music-dsp] glitch free looping

On Fri, Feb 10, 2017 at 11:16 AM, Martin Hermant wrote: > @bjorn : > if i use some fading i think leaning toward crossfading to avoid audio > silences part > these 1/60th of second « gap » is audible right? I believe I made an assumption that you were talking about

Re: [music-dsp] glitch free looping

hi Martin, i dunno how deep you wanna get into this. �a few years ago, Olli and i were discussing how to define optimal crossfades with constant-voltage crossfade between perfectly correlated audio and constant-power crossfades for zero-correlated audio and the optimal crossfade for every

Re: [music-dsp] glitch free looping

* Martin Hermant [2017-02-10 11:19]: > Thanks for these insights! > > @Peter : > I like the two play heads solution (and I’m already using these for handling > sudden jumps) I like to put it like this: > still It involves some playback logic, i.e you don’t play the end

Re: [music-dsp] glitch free looping

Thanks for these insights! @Peter : I like the two play heads solution (and I’m already using these for handling sudden jumps) still It involves some playback logic, i.e you don’t play the end of the buffer the same way if you are looping or stoping, I’m I right? I‘m in search of a ‘static

Re: [music-dsp] glitch free looping

I've done this before. I can't recall for sure how I solved it, but, off the top of my head, this is what worked: Zero crossing for start points and fade-outs for the end points using a cosine or s-curve works well. There are small problems: finding the exact right fade-out time without user

[music-dsp] glitch free looping

hi guys, we are currently developing an audio looper (soon to be released in opensource!) I’m facing the classical textbook case problem of glitch/pop free looping Problematic: loops have a defined number of sample (can’t change as it is bound to tempo) looping point need to be glitch free (no