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Audio Equalizer

Apply a multi-band equalizer (EQ)

Adjusts multiple frequency bands with individual gain controls for tonal balancing (bass, mids, highs).

Click to upload file or drag and drop file here

Maximum file size: 200MB Supported formats: audio/*

Key Facts

Category
Media
Input Types
file, number, select
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

The Audio Equalizer tool allows you to adjust bass, mid, and treble frequencies in audio files using multi-band EQ with individual gain controls. It helps balance tonal qualities for improved sound clarity and impact.

When to Use

  • •When you need to boost or cut specific frequency ranges in an audio recording.
  • •To correct imbalances like excessive bass or harsh treble in audio files.
  • •For preparing audio for different playback systems or environments.

How It Works

  • •Upload your audio file in a supported format such as MP3, WAV, or AAC.
  • •Adjust gain levels for bass, mid, and treble bands using sliders or input fields, with ranges from -24 dB to +24 dB.
  • •Optionally set center frequencies and Q (bandwidth) for each band to fine-tune the effect.
  • •Select an output format like MP3 or WAV and process the file to download the equalized audio.

Use Cases

Enhancing low-end frequencies in music tracks for a richer sound.
Reducing sibilance or hiss in podcast recordings by adjusting treble.
Balancing audio for video content to improve dialogue clarity.

Examples

1. Boost Bass in a Dance Track

Music Producer
Background
A producer is finalizing a dance track that lacks punch in the low end.
Problem
The bass frequencies are too weak, making the track sound thin on club systems.
How to Use
Upload the track, set Bass Gain to +6 dB, Bass Center Freq to 80 Hz, and output as MP3.
Outcome
The processed audio has enhanced bass, adding depth and power for better playback.

2. Reduce Harsh Treble in a Podcast

Background
A podcaster has a recording with sharp 's' sounds that are distracting.
Problem
Excessive treble frequencies cause sibilance, reducing listening comfort.
How to Use
Upload the audio, decrease Treble Gain to -3 dB, adjust Treble Center Freq to 6000 Hz, and save as AAC.
Outcome
The equalized audio reduces sibilance, resulting in smoother and more natural vocals.

Try with Samples

audio, file
Copyright-Free AAC Audio Samples
High-quality AAC encoded audio samples for testing and development, featuring nature sounds and meditation music with excellent compression
title token audio
audio
Copyright-Free MP3 Audio Samples
Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio
title token audio
audio
Copyright-Free WAV Audio Samples
Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
title token audio
audio
Copyright-Free OGG Vorbis Audio Samples
Open-source OGG Vorbis audio samples for testing and development, featuring excellent compression with nature sounds and meditation music
title token audio
audio

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FAQ

What audio formats can I upload?

The tool accepts common audio formats including MP3, WAV, AAC, and others via the file input.

How do I adjust the bass gain?

Use the Bass Gain (dB) option to increase or decrease bass levels, with a range of -24 dB to +24 dB.

What does the Q parameter control?

Q determines the bandwidth of each frequency band; lower Q affects a wider range, higher Q is more precise.

Can I process multiple audio files at once?

No, the tool processes one audio file at a time, as specified by the single file upload.

What output formats are available?

You can choose from MP3, AAC, M4A, OGG Vorbis, Opus, FLAC, or WAV for the output file.

API Documentation

Request Endpoint

POST /en/api/tools/audio-equalizer

Request Parameters

Parameter Name Type Required Description
audioFile file (Upload required) Yes -
bassGainDb number No -
midGainDb number No -
trebleGainDb number No -
bassFreq number No -
midFreq number No -
trebleFreq number No -
widthQ number No -
outputFormat select No -

File type parameters need to be uploaded first via POST /upload/audio-equalizer to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-audio-equalizer": {
      "name": "audio-equalizer",
      "description": "Apply a multi-band equalizer (EQ)",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=audio-equalizer",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]