Free · Compare two pitch levels

Pitch Up-or-Down Listener for Kids

Hear an original and changed sound take turns, then listen for the direction.

  • Clear, kid-friendly steps
  • Private in your browser
  • No signup
Real AudioWorklet pitch shifting

Pitch up-or-down listener

Hear the original and shifted sound take turns, then name the direction.

+8 semitones1.587× pitch factor
1Local soundcompare pattern
2Phaze workletFFT + peak shift + phase fix
3Changed pitchsame demo length
OriginalChanged
0.0 s01.000×
1.7 s01.000×
1.8 s+81.587×
3.5 s+81.587×

Compare original with eight steps higher.

Listen for this:Your ears can compare pitch even when the sound shape stays the same.

Shape the pitch

Save the pitch idea

Keep a readable guide, spreadsheet timeline, or editable project.

Powered by Phaze phase vocoder AudioWorklet, an open-source library available under The Unlicense.

Three simple steps

How to use it

  1. Pick a ready pitch, then press Play demo sound. Nothing plays on load.
  2. Move the pitch step slider and listen for the change.
  3. Save a pitch guide, timeline sheet, or project you can reopen.

Private by default

Your words and choices stay in this browser tab. There are no accounts, uploads, ads, or trackers inside the tool. Close the tab and the working data is gone.