Pitch Shift Vs. Speed Shift
Colin Hart has posted an interesting article over on his website. The article is in response to an idea that David Sonnenschein and I discussed when talking about Colin’s winning entry in January’s Sound Design Challenge. Specifically, we were wondering if there was a perceivable difference between a 192k recorded file when it was pitch shifted via plug-in processing, or when it had been forced to play back at a slower sample rate. It’s an interesting idea to consider in the design process.
One of the things I like to do in my sound design is to record at 192k. It opens up a world of options to you – you can do lots of cool things like major pitch shifting (since 192k will capture up to 96kHz, and most pro recorders are capable of 40 – 50k) and major time stretches (since you have 4x the data as 48k) without incurring any major sonic degradation. I love recording at 192kHz and then forcing it to play back at 44.1kHz. You get a lot of really cool sounds – some very deep, yet sonically full sounds.
Head over to Colin’s site to find out the results of his experiment.