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1. nick__+Rh[view] [source] 2022-05-07 03:23:46
>>je_bai+(OP)
The reported audio latency, in the release note, is incredible:

  05.05.2022  1.42.20  Below millisecond audio latency (intelhda,audio.asm)
                     - 0.083 msec @ 192 khz, 24 bit (playback)
                     - 0.667 msec @ 48 khz, 16 bit (record)
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2. PaulDa+oj[view] [source] 2022-05-07 03:45:26
>>nick__+Rh
Actually, it really isn't.

The numbers are not for through latency (-> audio interface -> cpu -> audio interface ->)

Instead they are for "half-duplex" latency (-> audio interface -> cpu OR cpu -> audio interface ->).

The 48kHz number represents a buffer size of 32 samples, which is entirely possible with Linux and macOS. The note also does not indicate how h/w specific these numbers are: there can be many h/w level issues with very low latency numbers that can't be solved by the OS (a classic example is a wifi chipset or video interface hogging the PCI bus for too long). On the "right" h/w, 32 samples for input latency is not really that remarkable.

What would be remarkable is if MenuetOS can get this performance from arbitrary intel hardware.

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