setPreservePitch

Chooses whether setSpeed keeps pitch.

True, the default, stretches the sound in time: 2x sounds like faster speech at its own pitch. False plays it faster or slower like a tape instead, so pitch moves with the rate, exactly mpv's audio-pitch-correction=no: 2x sounds a whole octave up. Musicians slowing a piece down to transcribe it often want the false setting; everyone else wants the default.

Seeded from AudioConfig.preservePitch. A live change is seamless, the same way a speed change is, on every source. At 1.0 the two laws sound the same. Published as PlayerSnapshot.preservePitch.