[FFmpeg-user] 5% of audio samples missing when capturing audio on a mac

Carl Zwanzig cpz at tuunq.com
Tue Sep 22 04:15:00 EEST 2020

On 9/17/2020 7:28 PM, amindfv at mailbox.org wrote:
> Can you explain this? I'm trying to get (30/1.001) or the rounded 29.97 to divide 48k cleanly or be a clean ratio but I don't see it.

It doesn't, but 48k samples per second is a nice number (and does divide 
nicely by 24,25, and 30). 30000/1001 is simply messy to deal with (~ 
=29.97002997002997002997002997003), and unless you have specific timing 
hardware pretty much impossible to run at the absolutely correct rate.


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