Time Between Callbacks?

Question

I have a laboratory project that uses mainly PyAudio and to further understand its way of working. I made some measurements, in this case the time between callbacks (using the callback mode).

I timed it and got an interesting result

(mesh size 256, 44.1k fs): 0.0099701; 0.0000365; 0.0000201; 0,0201579

This pattern can go on and on.

Between two longer calls, we have two short calls, and sometimes a longer call is shorter (remember that I am not doing anything in the program except callback times).

If we average this, we get the desired callback time:

1/44100 * 256 (approximately 5.8 ms)

Here is my dimension:

So can someone explain what exactly is happening here under the hood?

Answer 1

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