Lars Luthman wrote: > To transpose X semitones up, multiply the frequency with 2^(X/12). To > transpose down, just use a negative X. For C cents it should be > 2^(C/1200). Thanks alot guys. Right now I just needed the formula, but I'm hoping to find time during christmas to write a ladspa plugin that transposes using this formula. Don't know nothing about ladspa, but as far as I ca tell this super simple transpose-plugin should provide the easies possible way into ladspa for me. If I can't figure this one out I can't figure nothing out... -- peace, love & harmony Atte http://www.atte.dk