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acids-ircam / nn_tilde

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Choppy audio on Mac #26

Closed JeremyKeenan closed 1 year ago

JeremyKeenan commented 2 years ago

Audio plays back well with the 'wheel' model, but with the 'vintage' and 'percussion' model the audio becomes choppy - sounds slightly like CPU maxing out, or like a square wave tremelo, but CPU reading on max is at 2%.

Same results with forward, encoder/decoder and priors.

I am on an older Mac Air, 2015 OS 10.13.6, 8GB RAM.

JeremyKeenan commented 2 years ago

On second look, it does appear to be CPU spiking that the meter only picks up occasionally.

I'm on a 2.2 Ghz intel i7

JeremyKeenan commented 2 years ago

OK - I tried the 'vintage' model on a better CPU and updated OS.

The model plays OK with the 'forward' object, but when using the 'encode/decode' objects, I get the CPU spikes - goes rapidly between 1% and 100% CPU usage, creating audio dropouts.

IMac Pro 2017 2.5GHz 14-Core Intel Xeon W 64 GB Ram OS 11.4

caillonantoine commented 1 year ago

Vintage is pretty big, but you can lighten the processor load by increasing the buffer size (see the help patch).

jeremy-keenan commented 1 year ago

Thank you, that works - I can also confirm that it runs smoothly on both and mac and PC with higher RAM and CPU specs.