Akai DD1500

10 - SYSTEM SETUP
Page 52 Version 2.00 - March, 1996
TIME GENERATOR Here you may select the type of timecode the DD1500 will
generate. The options are:
RE-GENERATE SMPTE - This will re-generate fresh,
electronic SMPTE/EBU timecode at whatever rate is being
received. You may find this useful for re-striping a tape
where the source material has dropouts.
SMPTE/EBU selection - These will generate timecode at
the selected frame rate regardless of what the EXT. TIME
source is.
BI-PHASE selection - All of the bi-phase selections will
generate bi-phase at its select frame rate and cycle rate
regardless of what is EXT. TIME source is.
MTC - These selections will generate MIDI Timecode at all
frame rates through the rear panel MIDI OUT. This should
be used when synchronising a MIDI sequencer to the
DD1500.
MIDI SPP - This will generate MIDI Clock with Song
Position Pointer through the MIDI OUT. This may also be
used for synchronising MIDI sequencers.
NOTE: The DD1500 can read one type of timecode and generate another. For example,
the DD1500 can receive SMPTE/EBU timecode at one rate and generate it at a different
rate. It can also receive SMPTE/EBU and generate Bi-Phase at any of the rates available
(or vice versa). Likewise, the DD1500 could be receiving SMPTE/EBU whilst
simultaneously generating MTC or MIDI Clock. In this way, the DD1500 can be used as a
very comprehensive timecode converter to help you overcome many of the awkward
situations one can be faced with when receiving work done at different (or the wrong!)
timecode rate.
GENERATE This selects whether the DD1500 will generate the
timecode selected above. The options are:
OFF - The DD1500 will not generate the selected timecode
shown in the TIMECODE TYPE field. This may be useful to
switch external equipment ‘off-line’.
ON - The DD1500 is always generating the selected
timecode when playing, recording, fast forwarding,
rewinding, jogging and spooling.
VIA EXT.TIME KEY - This allows you to switch timecode
generation on or off using the EXT. TIME key. When this is
selected, with the EXT.TIME key ON, the DD1500 will
generate the selected timecode type and when EXT. TIME
is off, the DD1500 will not generate timecode. This may be
useful when the DD1500 is a slave to an external device
but is also passing on timecode to other equipment. You
can use the EXT. TIME key to totally isolate the DD1500
so that it can be used on its own.
VIA EXT M/C KEY - This allows you to switch timecode
generation on or off using the EXT M/C key. When this is
selected, with the EXT.TIME key ON, the DD1500 will
generate the selected timecode type and when EXT. M/C
is off, the DD1500 will not generate timecode.