4 Feb
2004
4 Feb
'04
3:33 p.m.
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