I spend lots of time randomly browsing gearslutz
taken from there, this is how I treat my samples to emulate the sound of the SP1200
First download Wavosaur, nifty little audio editor thats free and doesnt require install, just launch the exe:
Wavosaur free audio editor with VST and ASIO support
Play around with pitch shifting and resample rate (I usually resample to 26040 hz in audacity afterwards to match the sample frequency output of the sp1200) to find what you think sounds best.
taken from there, this is how I treat my samples to emulate the sound of the SP1200
First download Wavosaur, nifty little audio editor thats free and doesnt require install, just launch the exe:
Wavosaur free audio editor with VST and ASIO support
1. convert from stereo to mono
2. normalize the sample and then again to 2-4 db, to simulate the overdriving the SP inputs
3. resample to 80000 hz and select to only change the sample rate.
4. resample again to around 31000 hz, but this time don't select "only change the sample rate" (uncheck interpolation and anti aliasing filter)
4. convert from your 24bit or 16 bit to 8 bit (I read that SP-12 handled sounds internally with 8bit)
5. pitch down -18 for the piano sound and to -17 for the kick (uncheck interpolation here too)
I think when you play with the 80000 hz, the 31000 hz, you can get some different flavors of sound.
Play around with pitch shifting and resample rate (I usually resample to 26040 hz in audacity afterwards to match the sample frequency output of the sp1200) to find what you think sounds best.