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To use the computer for processing or recording voices
When you like to use the computer either
to filter or
to record voices directly using a mikrophone
it might me helpful to know the following facts.
The better the quality of the voices should be the more disk space is needed. The program CoolEdit 2000 allows also the following adjustments which have to be made before recording.
(f.e. 8 000 Hz = 8 kHz)
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8 000 Hz |
telephone quality |
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11 025 Hz |
poor AM (middle wave) radio quality |
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16 000 Hz |
a good compromise between 11 kHz and 22 kHz |
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22 050 Hz |
almost FM radio quality |
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32 000 Hz |
better than FM radio quality |
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44 100 Hz |
CD quality |
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48 000 Hz |
DAT (digital audio tape) quality |
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An example for disk space need for a 10 seconds recording: |
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44 100 Hz |
1860 KB |
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11 025 Hz |
411 KB |
rodiehr - December 28, 2002
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