On Wed, Feb 04, 2004 at 08:16:20 +0100, Antonio wrote: > > Steve Harris wrote: > [cut] > # Thats because the processing in jamin is high latency - jack itsself > # doesnt add any latency, no matter how many apps you connect. > # > # Well, actually thats not true - it will add latency if you have a jack > # feedback loop, but only 1 buffers worth. With trees and chains you dont > # get any additional lantecy over what the app adds. > > So if I understand, we have the alsa input latency plus the latency of > each app that elaborate the audio stream, while jack doesnt introduce > any latency (unless there is a loop). Yes. > Is there also an additional latency for the alsa out? > If not, playng via midi, I have only the soft-synth related latency (it > seems strange to me)? Yes, there is both a delay in alsa copying data to the card (up to 2x buffer size, IIUC), and in the card doing its DA conversion. The DA conversion will take something like 2ms. - Steve
