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Little Labs IBP Phase Alignment Tool

Phase Alignment Plugin by Universal Audio
Little Labs IBP Phase Alignment Tool
Little Labs IBP Phase Alignment Tool by Universal Audio is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin and an AAX Plugin.
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The Little Labs IBP Phase Alignment Tool eliminates the undesirable hollow comb-filtered sound when combining out-of-phase and partially out-of-phase audio signals.

Designed as a phase problem-solving device, the Little Labs IBP (In-Between Phase) has established itself with audio engineers as not only a "fix it" tool, but as a tool for manipulating audio phase as a creative, tonal color tool. Whether combining direct and miked signals, acoustic guitar and vocal mics, drum kit mics, or multiple split-guitar amps, the recorded audio signal phase can be quickly and easily controlled with the Little Labs IBP Phase Alignment Tool.

Universal Audio's "Workstation" version of this tool is optimized for the DAW environment and expands upon the original design with a continuous Delay Adjust control that provides a digital phase alignment option. Features include 0° through 180° "in-between-phase" continuous control, with a 0° through 90° option for finer control, "Phase Center" high and low position filter switch to add additional frequency-dependent control over the phase-adjusted source, a standard 0°/180° Phase Invert switch, as well as individual bypass switches for the Phase Adjust and Delay Adjust sections of the circuit. Lastly, a Power switch is provided to bypass the whole plug-in.


  • Continuously variable phase between 0° and 180.
  • Choose best mic position, without regard to phase.
  • Improves multi-mic setups and DI/microphone combinations.
  • 'Phase Center' switch allows control of low or high frequency sources.
  • "Delay Adjust" adds continuous digital phase control (plug-in only).

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