Synchronization With Dat-Link Versions Prior To 1.6 - Townshend Computer Tools DAT-Link User Manual

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The two rst lines instruct both units to receive their clock from an external source.
By performing this setup before running the
have stabilized before output begins. Next, playback is started on unit 0. However,
playback will not actually commence until both unit 0 and unit 1 both indicate
they are ready by releasing the
only after the fourth line is executed and the playback of
simultaneously.
DAT-Link
To record from two
following commands can be used:
narecord -u :0 file0 &
narecord -u :1 file1
Note that since the data is self-clocking, only start-time synchronization is per-
formed in this case.
There are no intrinsic limits on how many units can be synchronized using the above
techniques. However, using multiple
processes can quickly overload the host computer. Typically, if full-bandwidth,
stereo signals are being used, only two or three units can be synchronized using
these techniques before the host computer is unable to keep up with the data ow.
To record or playback les using a greater number of units, the
programs described below should be used.
9.1.2 Synchronization with
DAT-Links
When multiple
exactly the same rate on each unit. This can be done using the External Clock
input/output connector on the rear of each
DAT-Links
to connect together the
clock source and the other units can be slaved o the master. This clock can also
be used to trigger playback and recording.
For example the following commands will play
connected to the host named foo at the same sampling rate using unit 0 as the
master and unit 1 as a slave.
naset -u foo:0 -S E
naset -u foo:1 -S E
naplay -u foo:0 -S E44100 file1 &
naplay -u foo:1 -S E44100 file2 &
naset -u foo:0 -S OG
By making both units slaves neither unit will have a clock source, and no output
will be produced. When unit 0 is changed to a master clock source by the last line
Using Multiple DAT-Links
naplay
signal on the Sync connector. This occurs
READY
+'s with the recordings starting simultaneously, the
servers and
netaudiod
Versions Prior to 1.6
DAT-Link
are used it may be necessary to generate output at
DAT-Link
DAT-Link
. Then, one
le1
commands, all the clocks will
le0 le1
and begin
or
naplay narecord
or
dlmrec dlplay
BNC
. A cable can be used
can be used as a master
le2
DAT-Links
and on two