Hi all! I think it will be great to hear your perspective about this synthesis proposal.
On Pierre Schaeffer’s Solfege De L’objet Sonore first section after the prologue (the correlation between pitch and spectrum), examples are given about perfidious sounds and complex structured sounds.
perfidious sounds are those which variations on playback rate does not affect pitch accordingly, e.g. half of playback speed producing a whole tone downwards transposition (were octave below was expected):
complex structured sounds are those which are not strongly affected by bandpass filter, i.e. does not change their pitch and retain some fundamental characteristic (called by him mass) and they can be harmonic, inharmonic, pitched or noisy. For example, we can produce a clear melody when band pass filtering white and pink noise, but this is not exactly the case with complex structured sounds:
- What are the possible synthesis recipes for producing the originals above ?
- From a synthesis perspective, what are the limits of a sound being perfidious (“resistant to transposition”) and being transposable ?
- From a synthesis perspective, what are the limits of a sound being complex structured (“resistant to filtering”) and being filterable ?
Schaeffer claims that sounds that are resistant to filtering are sensitive to transposition.
- Are there examples were this is not the case ?