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Signal Processing

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    $\begingroup$ i am wondering if there is a little semantic confusion regarding "PSOLA", which i have usually equated with "Lent's Algorithm" (also credited to Hamon) that shifts pitch without shifting formants and conflating this with "TDHS" (time-domain harmonic scaling), which is what the Harmonizers (of various brands) did which do shift the formants along with pitch. $\endgroup$ Commented Dec 1, 2015 at 17:14
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    $\begingroup$ I've seen PSOLA used as just a descriptive synonym for TDHS. $\endgroup$ Commented Dec 1, 2015 at 17:38
  • $\begingroup$ i'm having a little trouble getting references (they're nearly 3 decades old and not IEEE). Hamon Lent and TDHS (not so good references) $\endgroup$ Commented Dec 1, 2015 at 17:43
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    $\begingroup$ i guess there's this one. $\endgroup$ Commented Dec 1, 2015 at 17:48
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    $\begingroup$ The difference might make a good separate question. Then a good enough answer can be used as a reference to update the wikipedia page (which currently says that they are the same). $\endgroup$ Commented Dec 1, 2015 at 20:44