Akai S1000 Series Operator's Manual Page 56

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Sampler functions
First select the sample to be re-sampled using the DATA knob or the
+ / < and - / >
buttons. You cannot resample a sample to itself, so you must give the resampled
data a new name, using the
NAME button.
Next, select the new rate at which resampling is to be done. The default value is one-half
of the original sample rate, for example, a sample made at 44100Hz will have the default
value set to 22050Hz. If you adjust this value, ("new sample rate"), the fields below this
will change: the length of the new sample, together with the amount of memory space it
will take up, and the amount by which the new sample will be detuned, relative to the old
sample ("
tune offset"). By simple mathematics, you can work out that if a sample is
resampled at half the frequency of the original, but the original time of the sample is
maintained, there will only be half as many sample points as before, and the overall pitch
will be dropped by one octave.
In addition to the new sampling frequency, a filter can be chosen to prevent aliasing or
"glitching" in the new sample. There is a choice of four different filter types (Filter 1
being the highest-frequency filter, and Filter 4 being the lowest frequency), in addition to
an "autoF" facility, which lets the S1000 pick the most appropriate filter for the
resampling being done.
Two specially-configured soft keys, 3/4 a and 2/3 , allow you to resample at 0.75
or 0.67 of the original sample rate. These will drop the pitch by 5 or 7 semitones
respectively. Simply press either of these soft keys in order to perform resampling
at these rates.
If you are not using these pre-defined resampling rates, press GO. After a while, the
"
re-sampling in progress" message will disappear, and you can press the PLAY
soft key to listen to the resampled sound (pressing ENT/PLAY will give you the original
sound). If you are not happy with the new, resampled sound, you can alter the parameters
and try again using the
GO button. You can always overwrite existing samples (as with the
JOIN and TIME facilities).
Note that smooth looping points which were carefully selected prior to resampling may
change, as critical sample points may disappear. If this occurs, reset the looping points
(but moving them by only one or two sample points will generally put things right again).
Conclusion
This ends the tour of the facilities provided by the S1000 for editing samples. Though
there's a comprehensive array of options, most of the facilities provided can be accessed
and implemented using a little common-sense. As with any complex system, practice
makes perfect. It's unrealistic to expect to get perfect results on your first try with the
S1000. Sampling is more of an art than a science, and experience will refine your skills of
recording and editing sampling. Remember to trust your ears - they're the ultimate test of
whether something sounds good or not.
P
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