Using Triggers to Randomly
Access SoundFiles:
With only two trigger inputs, random access
to individual SoundFiles can’t be done with
the
Sd-25
alone.
If being run from a control system (PLC, fire
system, or any Gilderfluke Show Control
system), SoundFiles can be randomly
accessed by giving multiple pulses to the
Sd-25
.
You would typically choose a mode that
allows the SoundFiles to be ‘reshuffled’ and
leave the ‘Random’ and ‘Non-Steppable’
switches ‘off’. Mode ‘C’ is commonly used for
this.
An example: Two outputs from a PLC are
attached to the ‘A’ and ‘B’ inputs of the
Sd-25
, which has been configured for mode
‘C’, ‘Steppable’ and ‘Sequential’ play. A
single pulse on the ‘b’ trigger input
‘reshuffles’ the PlayList. The Sd-25 is now
‘pointing’ at the first SoundFile. One or more
positive pulses (typically at about 15 Hz) are
now sent to the ‘a’ input to step the
Sd-25
forward to select and play the desired
SoundFile. The number of pulses are used
to select which SoundFile is played. One
pulse would play the first SoundFile. Ten
pulses would play the tenth.
Special Orders:
If none of the standard operating modes
available on the
Sd-25
meet your needs, we
can modify the existing modes, or put in a
new mode to suit your special needs. We
reserve mode ‘1F’ in the DipSwitches for
adding custom operating modes for
customers.
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485
Sd-25 w/DMX Manual • page 34 of 40 • © July 21, 2017 • Gilderfluke & Co. • DCM
