[Jack-Devel] Cannot combine audio devices with more than 64 channels

[Thomas Brand]

On Tue, January 24, 2017 20:41, Fons Adriaensen wrote:
> On Tue, Jan 24, 2017 at 04:27:00PM +0100, Thomas Brand wrote:
>
>
>> One of both interfaces will be slaved to the other and then both should
>>  run the same cycle at the same time (so theoretically no phasing
>> issues). You just have to manage to shove forth and back the sample data
>> from/to interface at good enough rate which isn't a particular problem
>> on localhost using UDP like zita does. If there is no resampling
>> involved, this can work for many many channels without hitting the CPU
>> too much.
>
> This is all as wrong as it can possibly be.
>
>
> First, even when resampling is disabled there is no defined relation
> between the period timing of Jack's main soundcard and the one added with
> zita-ajbridge. Zita-ajbridge will detect the relative period phases, and
> insert buffering so as to ensure that the difference in latency is always
> the same.
>
> Second, there is no UDP or anything network involved at all.
>

I wrongly mixed this up with zita-n2j/j2n while its about zita-a2j/j2a,
sorry for that.