Question 1

What is the difference between pitch shift and speed change?

Accepted Answer

Changing speed alters both tempo and pitch together (like a tape recorder). A pitch shifter changes only the pitch (frequency) while keeping the original tempo. This tool preserves tempo so you can raise or lower notes without making the song faster or slower.

Question 2

How many semitones can I shift pitch?

Accepted Answer

You can shift pitch from -12 semitones (one octave down) to +12 semitones (one octave up). The slider uses 0.1-semitone steps for fine control. Common presets include -5 (drop tuning), -3, +2, +3 and +5.

Question 3

What audio formats are supported?

Accepted Answer

Any audio format your browser can decode: MP3, WAV, OGG, WebM, AAC, FLAC, M4A and more. Output is saved as WAV for lossless quality and maximum compatibility.

Question 4

Is my audio uploaded to a server?

Accepted Answer

No. All pitch shifting happens entirely in your browser using the Web Audio API. Your audio files never leave your device.