MyCave

Convert mp3 440hz to 432hz with audacity

1. Create a new chain ( File ->; Edit Chains)
2. Add new chain from the left menu
3. Insert TimeScale
4. Edit parameters
5. Initial Pitch Shift (semitones) : -0.318
6. Initial Pitch Shift %: -1.181
7. Final Pitch Shift (semitones) : -0.318
8. Final Pitch Shift % : -1.818
9. OK and OK
10. Insert Normalize
11. Edit parameters
12. Normalize maximum amplitude to : -0.1
13. OK and OK
14. Insert ExportMP3

Run on files from File -> Apply Chain select your new chain and select files to be "cleaned".

Audacity creates a "cleaned" folder so don't worry, it will not destroy your music.