Here is a reel to reel audio recorded with not constant speed. I captured it a 3.75ips. It sounds too fast at the beginning and gradually slows speed until it sounds correct at the end. I slowed it down to 1.875ips at the beginning but it sounds too slow. It’s not my machine because other audio reels sounds fine from beginning to end.
Is there a Windows and Mac music player that has speed control which will also change the pitch? I tried VLC and others, they maintain the same pitch, so a chipmunk still sounds like a chipmunk at a slower speed. Preferably with keyboard shortcuts that can adjust speed+pitch at 5% increments.