many programs and devices have a function that slows down or speeds up audio without changing the pitch. my rockheaded layman's theory on illustrating how this must be done is that it divides the whole audio track into something like audio pixels that are so short that they can be shortened without actually removing any of the details that you're hearing-- it's just you're hearing every small detail for less of an amount of time (likewise with slower speed, it lengthens the amount of time that you hear every of those little "audio pixels" so that it is twice as slow). [more inside]
posted by candyhammer on May 28, 2009 - 13 answers

Where can I practise and record my music? I'm only looking for very basic demo quality, and need to do it very, very cheaply. [more inside]
posted by Ira.metafilter on Jun 14, 2007 - 6 answers

Can you help me help a friend to resolve his college major? [more inside]
posted by supercrayon on Jun 27, 2006 - 12 answers

What is the best Digital Multitrack Recorder for a budget to mid size home studio?
posted by protocool on Aug 3, 2004 - 5 answers