7 Aug
2019
7 Aug
'19
2:59 p.m.
On 8/7/19 10:59 AM, Holger Marzen wrote:
What is the difference between
jackd -n2 -p192
and
jackd -n3 -p128
Both give a total of 384 samples in buffers.
What's the difference for jackd?
Regards
Holger
Should not make a difference for clients, they would
simply see a 384 buffer size in both cases.
Although, I'm not sure 192 is an allowable period size.
Some technical notes from my MusE code, -n appears to
only affect audio output ports:
For Jack audio:
// For at least the ALSA driver (tested), the input port
// latency is always 1 period while the output port latency
// is always n periods (or n-1 periods for Jack1 or Jack2 Sync mode).
// In other words, the Jack command line -n (number of periods)
// ONLY applies to audio output ports.
For Jack midi:
// For at least the ALSA seq driver (tested), the input port
// latency is always 1 period while the output port latency
// is always 2 periods REGARDLESS of Jack command line -n (periods).
Tim.