I'm getting pretty good at making seamless engine sound loops and they sound awesome until I add them to the game. Then they sound all "whoosh whoosh whoosh". A little hard to describe, but a "vacuum cleaner" is pretty similar. I guess you could say it sounds more like a jet engine than internal combustion. Any opinions on what might cause this/ how to fix it? I'm using the standard wav export that Audacity allows, 16hz, 44100 bitrate. Some guides that I've read say that should be fine.
Have you matched the RPM of the sound samples at the end of the .sfx file ? If not then the pitch will never match.
Yeah, there's no harsh transitions in the pitch. I found out that Audacity wasn't actually saving them as 44100 Hz. Fixed that and it sounds a little better. Also adding some distortion to the sounds makes them sound more natural somehow. Curious what other techniques people use.