Summary

Acon Digital DeFilter is an automatic equalization plug-in designed to balance tonal imbalances and reduce resonant peaks in audio recordings. It works with complex spectral issues like comb filtering and room coloration while preserving the natural character of the source audio. It is compatible with Windows and Mac OS, supporting multiple plugin formats.

Key Features

• Automatic tonal correction based on speech, music, or custom reference profiles
• Removal of resonances and comb filter effects
• Reference matching to align timbre across different recordings or sessions
• Customizable, frequency-dependent correction curves
• Dual real-time spectrum analyzers for visual feedback
• Maintains natural sound without over-EQ’ing
• Intuitive interface optimized for speed and control

Usage Scenarios

DeFilter is ideal for cleaning up audio with unnatural tonal imbalances caused especially by poor recording environments or microphone inconsistencies. Typical applications include:

• Dialogue recorded in untreated rooms (reducing boxiness, comb filtering, room coloration)
• Restoring archival or field recordings
• Matching inconsistent multi-mic setups
• Correcting problematic music tracks with dull or harsh frequency responses
• Matching ADR or voice-over audio to production sound

Platform and Compatibility

• Windows 10/11 (32 and 64 bit versions), Mac OS X 10.13 or later (native ARM and Intel support)
• Supports VST, VST3, AAX (Pro Tools 2018+), and AU plug-in formats
• Compatible with popular DAWs including Logic Pro, Pro Tools, Ableton Live, Cubase, Nuendo, Studio One, Reaper, FL Studio, and others
• Supports sampling rates up to 96 kHz and multi-channel surround formats up to 7.1.6 channels

How to Use

1. Insert the plug-in on the audio track to process
2. Select a target profile (Speech, Music, or custom reference)
3. Fine-tune frequency-dependent correction intensity with curve editor
4. Preview in real time and compare with original signal via bypass
5. Visualize input and output spectrums with analyzers
6. Adjust final settings to maintain natural tonal character