I need to adjust a pitch on some karaoke MP4s. Everything I have tried changes the format to MP3 or some other thing and I lose the lyrics. Please advise me a suitable program.
Bert van Bergen
You can use Audio Pitch & Shift because it does support MP4 files. Please try this application, open your files and adjust the settings you need.
Open the file, then look at the Effects section. Adjust the pitch by dragging the bar up or down.