How The Presets Were Created - Akai DD1500 User Manual

20 - UTILITIES - DSP FUNCTIONS

HOW THE PRESETS WERE CREATED

In deciding the presets, our engineers took a wide variety of different types of material and
spent considerable time adjusting the many parameters associated with the process until
good results were obtained with each of the different categories of material. The presets
were then defined and then differing types of material were gathered and processed using
these presets. It was found that the different types of material (speech, music, rhythmic,
etc.) were all, by and large, processed successfully by selecting a preset whose description
roughly matched that of the material being processed. For example, it was found (much to
everyone's relief!) that taking any bit of male speech was usually processed quite
successfully using the MALE VOX presets. Likewise, the ORCH presets generally
processed classical and orchestral music fairly well. To tie you down to a selection of
presets may appear limiting but, take our word for it - it's a lot easier and quicker than
having to adjust a screen full of obscure and difficult to use parameters!
The basic premise to using the DD1500's timestretch and pitch shift presets is - "what is
the nature of the material I want to process? - choose a preset whose name roughly
describes it and give it a go. If it doesn't work out, hit UNDO and try again, selecting one of
the one of the A, B or C variations. If that's still not successful, try the ADJ parameter. If all
else fails, try another preset.
Compare this with...
Adjust MINIMUM CYCLE LENGTH, adjust MAXIMUM CYCLE LENGTH, adjust SAMPLE
INSERT RATIO, adjust MATCH LENGTH, adjust CROSSFADE TIME, adjust CROSSFADE
WIDTH, adjust CROSSFADE CURVE, set SEARCH PERIOD, press EXECUTE. If these
parameters don't produce acceptable results, repeat all of the above again (and again
and again!).
Page 204 Version 2.00 - March, 1996