olvb / phaze Goto Github PK

Since today, I have issue to hear any audio output from the example provided. Until yesterday it still worked fine.

Hello there !

Your lib looks like what I need but I can't see any documentation.
Reading your sources, I can pretty much get how to use it but I'm wondering :

what is the relation between pitch factor and tones/octaves ?
I think climbing an octave multiplies frequency by 2... does that mean I have to set the pitch factor to 2 ? or 0.5 to go down an octave..

Thanks for your help ^^

It appears that the output volume is significantly less that the original volume? Is this by design? I don't understand the math enough to know if this is by design or if the volume is being lost somewhere in the computations.

This error is pointing to the constructors

Uncaught TypeError: Failed to construct 'AudioWorkletProcessor': Please use the 'new' operator, this DOM object constructor cannot be called as a function.
at PhaseVocoderProcessor.OLAProcessor (ola-processor.js?49c6:7)
at new PhaseVocoderProcessor (phase-vocoder-worklet.js?dfb2:24)

This is a cool project, I tried to use it, but found that it seems to causes high CPU usage, it would be even better if the algorithm can be improved :)

Other information:

• Here is a performance comparison of fft implementations: https://github.com/scijs/fourier-transform/blob/master/benchmark.md
• Skip data processing when the player is paused, now it still causes high CPU usage after the player is paused

This project has been really insightful! Pitch shifting is non trivial and I greatly appreciate this.

I am wondering how I could make smaller pitch adjustments. Essentially the steps are too large and skips over semitones that I want. I tried to simply make the slider smaller values, however it seems that small adjustments do nothing until they step up or down significantly.

From trying to understand the code it seems an explanation, for this step function behavior, could be related to indexing an array. So basically it's the same index until it hits a certain threshold and rounds up to the next index.

I'm wondering if there is something small to tweak in order to make the intervals more sensitive.

thx again for this project!