InPhase from Waves is a phase correction plug-in for phase alignment of sources that have been recorded with more than one microphone, such as drums, guitar amps, etc. Phasing can cause drops in volume and impact frequency response and stereo imaging.

The software includes phase shift filters with adjustable frequency and Q, a correlation meter, and dual waveform displays for visually identifying phase problems. Waveforms can be moved manually or by using a delay control, or aligned in relation to a sidechain input.