How do you change pitch of a song without changing speed?
Answers
If you know both the key the original recording is in and the key you want to change it to, change both the Pitch "from" and "to" values.
Estimated Start Pitch: Attempts to detect the pitch of the most meaningful note at the start of the selection. The letter (with sharp "#" / flat "b" suffix as required) indicates the musical note and the number indicates the octave position of the note. The frequency of the detected pitch is given in parentheses. For example, if you have a very short, quiet note on A3 followed by a longer, louder note on C4 Audacity will probably detect C4 but if the second note is the same volume then Audacity will probably detect A3.
"from" and "to" controls: The "from" and "to" controls each have a dropdown menu for selecting the musical note, then to right of that menu, a text box for selecting the octave of that note.
Semitones (half-steps): If you do not know the key the original recording is in but you know how many semitones it needs to be changed, enter that value here. For example you could duplicate a vocal track and then apply Change Pitch with a value of +7 semitones (a major fifth) to create a harmony vocal.