If you don't own a software audio editor that can time-stretch samples automatically - like, for instance, Sonic Foundry's Acid - then these tempo adjustment calculators are just the tools you need. Below the fold: Tempo Transposer and a Tempo and Pitch-Shifting Calculator The results are accurate to one hundredth of a point, unlike the "old" Akai samplers! Tempo Transposer: This calculator is pre