personal_username

I'm trying to figure out what in audio interrupt does...

I used to hear some strange clipping on my patch when changing presets, and I tinkered a little bit with the audio settings... Most of them I knew, but I did quite get what audio interrupt does.

So i turned it off and suddenly the clipping was removed... and I don't know the reason why...

So, I'm leaning into turning it off permanently, but I don't know if there is any downside...

I'm trying to figure out what in audio interrupt does...
I used to hear some strange clipping on my patch when changing presets, and I tinkered a little bit with the audio settings... Most of them I knew, but I did quite get what audio interrupt does.
So i turned it off and suddenly the clipping was removed... and I don't know the reason why...
So, I'm leaning into turning it off permanently, but I don't know if there is any downside...
What do you think? 

about-audio-interrupt

The 'clipping' may actually be samples dropping as CPU tries to keep up. 'Overdrive' and 'In Audio Interrupt' are more easily explained together:

Overdrive kicks the event-scheduler into a high-priority thread(same as audio) while 'in audio interrupt' polls the event-scheduler exactly at the start of each vector of audio.

https://cycling74.com/docs/max6/dynamic/c74_docs.html#mspaudioio

(changing vector-sizes to something larger can also produce similar less-CPU-taxing results)

The downside is less tighter sync between audio-thread and event-scheduler but you might not always need it.

The 'clipping' may actually be samples dropping as CPU tries to keep up. 'Overdrive' and 'In Audio Interrupt' are more easily explained together:
Overdrive kicks the event-scheduler into a high-priority thread(same as audio) while 'in audio interrupt' polls the event-scheduler exactly at the start of each vector of audio.
https://cycling74.com/docs/max6/dynamic/c74_docs.html#mspaudioio

The downside is less tighter sync between audio-thread and event-scheduler but you might not always need it.


btw, I guess I should digg more into the audio settings to *finally* have a proper understanding of the better values for me of I/O Vector Size and Signal Vectors size...

Thanks!
btw, I guess I should digg more into the audio settings to *finally* have a proper understanding of the better values for me of I/O Vector Size and Signal Vectors size...


Thank you raja for translating the slightly arcane documentation into something even I can understand: everyman language.

Yes, the documentation says this, but does so from a slightly different perspective

about audio interrupt