Transpose

Introduction to Transpose

The transpose tool allows you to change the pitch of a recording, with or without changing the tempo. In many cases, large pitch changes lead to unnatural sounding results. The effect is especially pronounced when changing the pitch of the human voice, where higher pitched voices sound more like Disney's chipmunks than a human voice. The transpose tool has an optional Maintain timbre option that reduces this artifact. When Maintain timbre is checked, Acoustica creates a smooth spectral envelope estimation of the signal and whitens the signal before pitch shifting. The original smooth spectral envelope is applied after transposing and the original timbre is preserved

User Interface

Parameter Settings

• Interval

The musical interval to transpose. Use the radio buttons to set the transpose direction to up or down.

• Fine tune (-100 cents to 100 cents)

With this slider you can fine tune the pitch shift factor in cents which are 1/100 of a semitone.

• Maintain duration

Check this to keep the duration of the audio intact.

• Maintain timbre

Check this to keep the timbre of the audio, this is especially useful for preventing the "chipmunk" effect when transposing a vocal.

• Timbre smoothing (Hz)

This knob adjusts the smoothing when Maintain timbre is enabled. Larger values will lead to more smoothing.