Voxengo PHA-979

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Page last updated Feb 07, 2026

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Description

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Elevate your audio productions with the Voxengo PHA-979, a versatile and phase alignment tool designed for both novice and professional audio engineers. This plugin excels in offering precise phase adjustments, allowing you to enhance stereo imaging and tighten the overall sound of your mixes. Whether you're working on a complex multi-track recording or a simple stereo track, the PHA-979 provides the flexibility you need to achieve the perfect phase coherence. Its intuitive interface ensures that you can make quick adjustments with ease, while the advanced algorithms ensure high-quality audio processing.

The PHA-979 is more than just a phase alignment tool; it also features mid/side channel processing that allows you to manipulate the stereo field with precision. This feature is particularly useful for mastering engineers who want to fine-tune the spatial characteristics of their tracks. Compatible with most major DAWs, the PHA-979 integrates seamlessly into your existing setup, providing a reliable and effective solution for all your phase correction needs.

Key Features:

Advanced phase alignment tool
Mid/side channel processing capabilities
Intuitive user interface for easy adjustments
High-quality audio processing algorithms
Compatible with major DAWs
Ideal for both novice and professional audio engineers

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Voxengo PHA-979 - The Ultimate Phase Tool / Bass Fixer

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Voxengo PHA-979.

Features and functionality

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The PHA-979 introduces phase shifting to adjust DC offset, making waveforms symmetrical without affecting silence, unlike Bitwig's DC Offset tool, which can cause pops.
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The PHA-979 employs phase rotation via FFT, with a Plugin Delay Compensation (PDC) of 2.2K samples, indicating its processing complexity.
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Despite buffer size adjustments, the PHA-979's latency remains unaffected, indicating its inherent processing demands regardless of external settings.
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Software and compatibility

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PHA-979 is a linear phase design, which can create preringing and a softer mix compared to non-linear phase processing available in Bitwig.
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The PHA-979's latency issue in Ableton Live can be monitored using the built-in latency indicator, which shows the latency each plugin introduces in samples and milliseconds.
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Use cases and applications

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PHA-979 is particularly used for adjusting phase in rolling basslines to alter DC offset without introducing silence-related artifacts.
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The PHA-979, when used between Serum and a visualizer like Mega Scope, requires careful latency management to ensure kick and bass signals remain in phase.
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User experience

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Some users report hearing artifacts during phase rotation, suggesting potential limitations in audio transparency when using the plugin aggressively.
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Comparisons

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Steinberg/Nuendo Mixconvert also uses FFT for phase rotation but with a lower PDC of 512 samples, which might imply differences in latency and processing efficiency.
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Setup and maintenance

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Users can adjust Mega Scope's latency settings to align with the PHA-979's latency, ensuring accurate phase correction when used in a DAW like Ableton Live.
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