At least in Izotope RX there is a Pitch Contour adjustment.
You can adjust the needed pitch amount and it's change during the length
recording and then process it to a reasonably constant pitch.
Now - does it keep the playback speed? Hm... Need to check.
Grant, Tyra wrote:
> We're transferring a collection of personal cassettes---interviews---mainly from the 90s.
> A few start out okay then slowly speed-up so people sound like The Chipmunks.
> Then, some are okay on one side but the flip side is speeded-up.
> What's up here?
> We'd appreciate recommendations re: the best way to handle these in order to get something listenable.