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0. Sample Rate Convert
Sampling at a high sample rate provides better frequency response than
sampling at a slower rate, but uses up more memory. If you need to
reclaim some of that memory, and are willing to trade off sample fre-
quency response, samples can be converted from a higher rate to a lower
one. Use your ear to compare sounds at the two sample rates. If you
can't tell the difference, use the lower rate.
Sample Rate Conversion can be used for saving memory, increasing the
upward transposition range of a sound, or exactly matching the sample
rate to a multiple of the sounds frequency for perfect single cycle loop
(use the sample calculator).
1. Activate Digital Processing module.
2. Select 8, Digital Tools II, 0. Sample Rate Convert (8/0). The
display will show the current sample rate and sample size.
SAMPLE RATE CVT
Rate:
Size:
Loop Size:
3. Select the new sample rate and press ENTER. The display will
update the sample size to reflect the new sample rate. The Loop Size
display shows the size of the resulting loop. If a fractional number is
shown, you may want to adjust the sample rate until the loop size is
an integer, otherwise the loop size will be slightly altered by the
conversion process.
The "f" in the upper right corner indicates the reconstruction filter that
will be used in the resampling process. Higher numbers indicate more
interpolation filtering (cutting more high frequencies). There are six
interpolation filter frequencies (0-5). By performing successive sample
rate conversions with lower reconstruction filter numbers, the automatic
filtering system can be subverted and the sample can be kept brighter.
4. If you are not satisfied with the resulting sample rate conver-
sion, or want to compare before and after, proceed to Digital
Processing, 9. Undo.
f:0
22050Hz
107220
5035.00
Digital Processing
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