Synchronization; Synchronization With Dat-Link + Version - Townshend Computer Tools DAT-Link User Manual

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9.1 Synchronization

To record or playback audio les using multiple
nization come into play:
Sample-rate synchronization to guarantee that multiple units are operating

at exactly the same rates.
Start-time synchronization to ensure that playback or recording begin at the

same time.
Normally, both types of synchronization are required for playback. However, there
are some cases where multiple units may be operated at di erent sampling rates.
One example is output of a low frequency control variable along with a wide-band
audio signal. In these cases only the start-time synchronization is required. Note,
however, that if the sample-rates of multiple units are not locked, it is not possible
to align the start-time with accuracy greater than plus or minus one sample.
Since the digital audio inputs to the
cannot enforce sample-rate synchronization during recording. The signals must be
synchronized at their source by the external equipment. If the inputs are externally
synchronized at the same rate, then the
recorded from multiple units are exactly aligned. If the sources are not sample-rate
synchronized, then the start-time synchronization will only be accurate to plus or
minus one sample.
The synchronization systems used by di erent
di erent and are described separately in the sections below. The version number
DAT-Link
of your can be found on the serial number plate on the bottom of the
DAT-Link
or by running
9.1.1 Synchronization with
DAT-Link
The + provides an 8-pin Sync connector for both sampling-rate and start-
time synchronization of input and output. An external clock available from your
DAT-Link
supplier , is required to feed the
1
to synchronize playback sampling-rates and playback or recording start-time. The
Sync connector can also be used for specialized applications such as an external
pause or foot-switch control. See Appendix C.2 for details on the Sync connector
and its pinout.
Part number EXT-CLK
1
DAT-Links
DAT-Link
DAT-Link
DAT-Link
.
naversion
DAT-Link
DAT-Link
Using Multiple DAT-Links
, two types of synchro-
DAT-Link
are self-clocking, the
can ensure that the rst sample
versions are substantially
+ Version 1.6
+ with all necessary signals