Zynaptiq UNFILTER - Short Review

Audio Tools



Zynaptiq UNFILTER Overview

Zynaptiq UNFILTER is a sophisticated, real-time audio processing plug-in designed to address and correct various filtering issues in audio recordings, making it an indispensable tool for professionals in music production, film post-production, broadcast, sound design, and forensic audio analysis.



Core Functionality

UNFILTER’s primary function is to automatically detect and remove filtering effects such as comb filtering, resonances, and excessive equalization, effectively linearizing the frequency response of an audio signal. This is achieved through Zynaptiq’s proprietary “real-time blind de-convolution” technology, which estimates the original filter applied to the audio and then applies a complementary filter to reverse its effects.



Key Features

  • Automatic Detection and Removal: UNFILTER can automatically identify and remove resonances, equalization, roll-offs, and comb filtering from various types of recordings, including musical, location, dialogue, and surveillance audio.
  • Filter Response Application: The plug-in allows you to apply the detected filter response to other signals, ensuring that multiple recordings can be placed in the same “acoustic world” for better consistency and coherence.
  • Impulse Response Export/Import: You can export the measured filter response as a linear- or minimum-phase impulse response file (WAV) or import such files to apply the filter response to other recordings.
  • Mastering Grade Equalization: UNFILTER includes three types of mastering-grade equalization: adaptive program equalization, free-form EQ with various curve interpolation modes, and a streamlined 7-band graphic EQ. Additionally, it features a super-steep 96dB/octave shelving high-pass filter for efficient low-frequency rumble removal.
  • Output Limiter: An integrated output limiter is available for unsupervised use in batch processing applications, ensuring that the output signal remains within safe levels.
  • Efficient Workflow and UI: The plug-in is designed with a highly time-efficient workflow and user-friendly interface, making it easy to navigate and adjust settings even for complex tasks.


Applications

UNFILTER is versatile and can be used in a variety of scenarios, including:

  • Removing room resonance and repairing poorly mic’d production sound or musical recordings.
  • Enhancing the intelligibility of speech recordings in film sound, broadcast, ENG, and forensic applications.
  • Adapting multiple sounds to blend better with each other.
  • Adaptively re-balancing the frequency response of mixed music.
  • General-purpose high-resolution automatic equalization.
  • Creatively designing new sounds by applying and manipulating filter responses.


Availability

UNFILTER is available as AudioUnits, RTAS, AAX Native, and VST plug-in formats, compatible with both Mac and Windows operating systems. It can be purchased from the Zynaptiq website and select international resellers, with a free trial version also available.

With its advanced technology and comprehensive set of features, Zynaptiq UNFILTER is a powerful tool for audio professionals looking to correct and enhance their recordings efficiently and effectively.

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