
By dubmunkey
Fri Feb 06, 2004 12:33 pm
its in the manual BUT- resampling is changing the sample rate to affect the sound and save memory....
greg
greg






Noyd wrote: ......,whut do yall meen with resampling? is it to make a C4 note work over the whole keybord?

Cheech wrote:That's easy.
You have to push the big red button that says 'rec'.

dubmunkey wrote:anyone understand sarcasm or am i faling to understand your sarcasm?
greg

pgk wrote:Resampling is usefull for saving memory with certain low frequency samples without losing much quality. To accurately reproduce a sound you have to sample at twice the frequency of the sample. For example if you have a pure sine wave at 100Hz you will need to sample at 200Hz to reconstruct this sine wave. This is known as nyquist sampling theory.
http://www.efunda.com/designstandards/s ... yquist.cfm
Because bass drums and other drums are usually low frequency you can get away with resampling them at lower rates hence save memory. You can also this resampling feature creatively, as reducing the sampling rate you will tend not to capture the higher harmonics of a sound. Try resampling a high hat and see what happens as you reduce the sampling rate.
Because the human ear can hear between 20 Hz and 22KHz also gives us an insight into why 44KHz is a common audio sampling rate (Due again to Nyquist sampling rate) In order to capture a 22KHz sound we need to sample at 2*22KHz = 44KHz which is what the mpc sampling rate is. We need to sample at this high frequency in order to capture things like hi hats and sounds with high frequency components in them.
