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understanding frame size, buffer size, sample rate
Understanding Frame Size:
the calculations to get theoretical interface latency from Buffer size/No of samples/second  and Sample Rate khz( audio quality) khz isn't difficult:
Buffersize / Sample Rate X 1000=Latency ms
Also  the cpu load as expressed in buffer fills is
Buffer fills per second (cpu load) =Sample Rate / Buffer size

BUT , as with many audio terms apparently, audio frame rate or size is confusing and what I find in some places doesn't seem to match up with what I read ( below) in the knowledge base.
From JK Knowledge base:
"the Frame Size lets you know how frequently your audio interface is capturing and transmitting audio "chunks" to your computer. In the screenshot above, the frame size is 2.5 milliseconds. This means your audio interface is grabbing a chunk of analog audio at a chunk size of two and a half thousandths of one second and digitizing that chunk of audio and transmitting it to your computer to be processed. This Frame Size value is set in step 2 of the audio setup wizard. This is a pretty safe frame sizes for all computers these days. For more modern/current computers with greater processing power, you can reduce your frame size to 1 millisecond, so that the audio is sampled and processed every single millisecond, which will decrease your audio processing latency."


Using Line 6 Helix or Roland Session Mixer as audio interface

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