20 Feb
2013
20 Feb
'13
9:01 a.m.
On Tue, February 19, 2013 11:39 pm, Tim Goetze wrote:
[Len Ovens]
While I don't doubt the calculations could be done in that time, I assumed
they would still have to use the same size buffering as jack, so even if
it was all done internal to one effect there would still be at least
2.67ms in the example above. 2.6ms each if they each hit jack in between.
TBH, I have used my netbook as a guitar effect with 128f/p and no
noticable delay.
--
Len Ovens
www.OvenWerks.net
On Tue, February 19, 2013 11:25 am, Jeff Sandys
wrote:
If they're well-engineered, latency from the digital effects listed
will amount to well under half a millisecond. - Sound travels ~1 foot per millisecond, 8
feet from the speaker =
8ms latency
latency as listed by qjackctl (for example) is one way from the card's
buffer to jack. Double that by the time it gets back to the card. Cards
typically add 1ms each way. So with 64f/p at 48khz the one way latency is
2.67 + 1ms from the analog input. This is already pretty close to that
8ms... and I haven't done anything with the audio yet. Add eq, tube
emulation, box emulation, reverb, etc. and they all add more delay to the
signal.