Re: [linux-audio-dev] Calculating Latency

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Subject: Re: [linux-audio-dev] Calculating Latency
From: Paul Davis (paul_AT_linuxaudiosystems.com)
Date: Thu Sep 11 2003 - 19:33:16 EEST


>What is the formula for calculating latency in Jack? For example, I
>start jackd with a period size of 256 and 2 periods, a sample rate of
>44100. Using a mic input and FreqTweak, that's pretty close to
>inaudible latency to my ears. How do I calculate the actual ms value
>of that?

output latency = period size * nperiods
input latency = period size
through latency = output latency
jitter = period size

if period size = 256, nperiods = 2 and SR = 44100, then the output
latency is 256/44100 * 2 = about 11 milliseconds.

--p


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