[LAU] Long latencies with JConvolver or BruteFIR

Fons Adriaensen fons at linuxaudio.org
Sun Oct 6 16:22:15 CEST 2019


On Sat, Oct 05, 2019 at 09:50:38AM -0700, AKC360 wrote:

> JConvolver Latency = 85mS, CPU Load = <5%
> Brutefir Latency = 104mS, CPU Load = 55-60%

Both are way too high. Are you sure you are measuring
latency, and not just the delay of your filter ?

A symmetric FIR of 8192 samples would have a delay
of 4096 samples, or 85.333 ms...

To measure latency, you'd need a 'filter' consisting
of single sample at position 0 (use the 'dirac' command
in the jconvolver config).

Ciao,

-- 
FA




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