On 06/10/2011 06:47 PM, Michael Chapman wrote:
Not sure I am the best person to answer this ... but as I asked
the initial question.
On Linux AND Mac, 'Jack' (not Jacktrip) allows one to 'patch'
audio applications and input/output sockets together (hence
jack, as in jack plug).
Jacktrip is one of the possible extensions to Jack, that allows
a 'socket' on one computer's Jack to be a connection to a
socket on another computer's Jack.
there is also netjack, which is part of the jack package. it does the
same job, but sample-synchronized.
the downside of netjack is that two mutually incompatible
implementations exist, which makes for a somewhat intimidating first
contact... but it works very well.
Perhaps a reallife example:
We were running a DAW as a hefty way to play a four-channel
file, then passing that to Ambdec to decode to eight-channels
of speaker feed.
The first computer did not have a (effective) soundcard.
So we were trying to patch the 8 channels through to
another machine with a multi-channel sound card.
with netjack, you would run the second machine (the one with the 8ch
card) as master, running the jack_netsource program.
the other machine is then slaved to it, using jackd -d net.
the jack graph on the slave machine will be timed by the master. that
means you don't have two diverging sample clocks, as is the case with
jacktrip (and which necessitates some messy compensation, such as
dropping or duplicating frames, which is usually not be tolerable in a
studio context).
PS Thanks for all the other comments. The consensus seems
to be channels>4 ought to fit down the diameter of cable
we have.
Will start investigating why they don't . . .
jack is using 32bit floats. they will only fit lengthwise, unless you're
using at least awg 22.
--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT
http://stackingdwarves.net
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