Rotate Phase

About Phase Rotation

Speech recordings often have asymmetric waveforms like in the example below.

Recordings of the human voice frequently exhibits asymmetric waveforms.

Rotating the phase equally over the full frequency bandwidth is usually inaudible and can restore the symmetry of the waveform. This has several advantages as you can then increase the volume without introducing clipping. Asymmetric waveforms also give limiters and compressors a tougher job than necessary. The Rotate Phase tool can rotate the phase with fixed rotation or adaptively rotate the phase for maximum symmetry.

User Interface

Parameter Settings

• Adaptive

The Adaptive mode button lets you toggle between adaptive and manual phase rotation. When the adaptive mode is enabled, the Rotate Phase tools will continuously analyze the audio and adjust the phase rotation for maximum symmetry.

• Link channels

The Link channels button lets you toggle between individual phase rotation per channel or phase rotations that are common to all channels.

• Channel rotation knobs (deg.)

When the adaptive mode is disabled, you can adjust the phase rotation manually in degrees using the channel rotation controls.