Exchange tips and tricks for the Akai MPC4000
By quest5 Mon Mar 28, 2005 11:03 am
New Owner asking.. I'm in the manual and learning this machine inside-out, and cannot find it anywhere.

Can I ask.., can I lower my sample rate lower than 16bit?. Id ideally like to be able to do this on some hats and other sounds (drop to 8bit/6bit). How do i do this? also, Is it possible to use sounds with mixed sample rates in my tunes? eg: some at 2bit, some at 8bit, some at 16 and 24bit?
I may of missed a simple thing in this monster,sorry if I have
cheers

By bleepfreak Mon Mar 28, 2005 2:14 pm
Hi quest,

First of all samplerate and bitdepth are two different things. They can be changed independently. The samplerate corresponds with the frequency range of a digital audio signal. A higher samplerate results in a wider frequency range. Bitdepth corresponds with the number of possible amplitude levels in a digital audio signal. Higher bitdepths result in more defenition in the dynamic range.

To answer your question. On hardware level (A/D & D/A converters) the lowest bitrate in the MPC is 16bit. However you can resample your samples in sample edit mode to virtyually lower the bitrate of a sample. This does not change anything on hardware level, it just changes the sound of the sample err... a bit :wink:

Hope this helps... Cheers!