Rosendahl bonsaiDRIVE - Manual (Page 21)

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(4) TRIGGER
Midi time code is often output from PC audio workstations.
Depending on the system used there is often too much latency and
jitter in the MTC making it unsuitable for a continuous
synchronisation. To get round this problem, one can use a so called
TRIGGER setting.
In this mode the input time code is only used as a start mark that
triggers the synchronisation. From this point onwards both player and
synchronised machine run in nominal speed and through the use of
an external sync for all machines, sync is guaranteed over long play
times.
Note: One can use the word clock output of the bonsaidrive as 48
kHz word clock reference for the audio workstation.
Similar to GENLOCK mode the input time code and the internal time
code are compared, and when an error of over 1 frame has
accumulated a resync is done to remove the error.
In trigger mode the audio data are not interpolated and are given out
in full 24 bit resolution.
Note: It is advisable to use the chase mode TRIGGER when
synchronising to a MTC source.
(5) LOCK & RELEASE
Once the bonsaidrive has locked to a nominal time code source it
remains in this locked play status independent of the incoming time
code. Only a valid stop command from the bonsairemote or received
via 9-pin or MMC will cancel the locked playback. This mode can be
used to synchronise the machine to so called time code burst
recordings or to lock to fragmentary or faulty time code tracks.
(6) AUTO CRASH RECORD
To enable this time code chase mode you must also set the
RECORD MODE in menu 019 to CRASH.
When a valid nominal time code source is detected the unit starts a
new crash recording with the captured time code. When this time
code source stops or becomes not valid the recording will be stopped
automatically.
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Each new detected offset in the time code source causes a new
separate crash recording with an increased clip number.
This chase mode serves for location recordings where each take with
new running time code values from a camera automatically starts a
new crash recording with increasing clip numbers.
MENU 031 TIME CODE INPUT
Select the time code input used for the TC chase mode and for the
TC record mode using the [+] and [–] keys. Firmware BF 00.52
supports LTC and MTC time code sources.
Note: detected 29.97 drop frame time code format is indicated by the
time code inserter with a semikolon ";" in-between the minutes and
seconds digit.
MENU 032 AUTO PLAY MODE
Select one of the AUTO PLAY MODES, "LOOP LOC1... LOC2",
START LOC1, STOP LOC2 or PLAY ALL CLIPS”.
LOOP LOC1... LOC2 plays a continuous loop of which the start and
end points are defined by the two locator points.
START LOC1, STOP LOC2 is an automatic play function that begins
with locator point 1, plays to locator point 2 and stops.
In this way in connection with the GPIO's (General Purpose Inputs/
Outputs) a particular scene can be played back at the press of a
button.
PLAY ALL CLIPS plays all 255 clips successively with “jumping” time
code values on each clip crossing.
When an autoplay function is selected play and shuttle functions
work automatically, moving from the right Locator LOC 2 back to the
left locator point LOC 1.
In order to set a new locator point and move to another play loop
press [LOC 2] to go to the end of the play loop and then press the [+]
key twice (STEP FORWARD).
Now you can move about outside the end point with normal play or
shuttle functions to set a new end point. Start and end points are set
like normal locator points with [REC] + [LOC1] or [REC] + [LOC2].