Features

Everything EQing can do

Every feature is free, can be adjusted independently, and is applied in real time.


Audio engine

WASAPI & Loopback

Choose the output path that fits your listening setup.

WASAPI Exclusive

Bypass the Windows mixer for a direct, bit-perfect path to compatible DACs and audio devices.

WASAPI Shared

Use the Windows mixer for maximum compatibility while other applications continue to play audio.

Loopback Processing

Capture audio from streaming apps, browsers, games, or the whole system, apply EQ, and send it to another output device.


Equalizer

Parametric EQ

Precise control over frequency, gain, and bandwidth.

Up to 31 Bands

Peaking, low shelf, high shelf, low pass, high pass, notch, and all-pass filters.

Interactive Response Graph

See changes immediately and drag filter points directly on the frequency-response graph.

REW & AutoEQ Import

Load ParametricEQ files from Room EQ Wizard and AutoEQ without manually re-entering every value.

Preset Library

Save correction profiles for different headphones, speakers, rooms, and listening styles.


AI assistant

Create EQ by describing the sound

You do not need to know frequency ranges. Tell EQing what you want to hear.

Natural-Language EQ

Ask for “clearer vocals with tighter bass” and receive a complete curve with an explanation of the key adjustments.

Conversational Refinement

Continue with requests such as “keep that curve, but add a little more sub-bass” without starting over.

Private Local Inference

Gemma 4 E2B runs inside EQing through LLamaSharp and llama.cpp. No Ollama, account, API key, or cloud service is required.

Edit Existing EQ

Load a hand-built or imported preset and ask the assistant to refine only the areas you describe.

Session History

Generated curves and conversations are saved so you can restore, rename, or remove them later.

Free to Use

Download the GGUF model once, select it in EQing, and use the assistant locally without usage fees.

Model notice
The AI EQ Assistant uses Google DeepMind's Gemma 4 model, distributed under the Apache License 2.0. EQing does not bundle the model; download it from the official distribution page. Use is subject to the Gemma Prohibited Use Policy.

Upscaling & harmonics

High-resolution processing

Polyphase Upscaling

Reconstruct PCM at higher sample rates with selectable sinc filter behavior for compatible output devices.

Harmonic Exciter

Synthesize subtle upper harmonics to add presence and air while maintaining controlled output level.

Tube Harmonics

Add adjustable second- and third-order harmonic character inspired by tube amplification.

Dynamic EQ

Apply loudness compensation that reinforces bass and treble at lower listening levels.


Spatial audio

A wider, more natural headphone stage

Stereo Width

Adjust Mid/Side balance from focused mono compatibility to a wider stereo presentation.

Crossfeed

Blend channels naturally to reduce hard left/right separation during headphone listening.

HRTF

Use head-related transfer processing to move the perceived image beyond the center of the head.

Depth, Height & Position

Shape the soundstage with independent depth, height, and front/rear controls.


Library & player

Your local music in one place

Broad Format Support

FLAC, WAV, AIFF, ALAC, APE, MP3, AAC, Ogg Vorbis, DSF, and DFF.

Visual Group Browsing

Browse artists, albums, genres, and years as icon groups, with replaceable thumbnails.

Queue & Playlists

Build queues and playlists with drag-and-drop, shuffle, repeat, metadata, and album art.

DownloadorRead the guide