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Audio Denoise Chain

Apply a multi-step denoise chain with filters and optional RNNoise

Combines highpass/lowpass filtering with FFT denoise and optional RNNoise (arnndn) for deeper cleanup.

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, checkbox, select
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

The Audio Denoise Chain tool reduces noise in audio files using a multi-step process. It combines highpass and lowpass filters with FFT denoise, and optionally applies RNNoise for enhanced cleanup, delivering clearer audio output.

When to Use

  • •When audio recordings have background noise like hums, hisses, or static.
  • •When preparing audio for podcasts, videos, or professional broadcasts to improve clarity.
  • •When cleaning up interview or field recordings for better listening or transcription accuracy.

How It Works

  • •Upload an audio file in a supported format such as MP3, WAV, or AAC.
  • •Configure highpass and lowpass frequencies to filter out unwanted noise bands.
  • •Set the noise floor in dB and optionally enable RNNoise for deeper noise reduction.
  • •Select the output format and process the file to download the cleaned audio.

Use Cases

Cleaning up podcast episodes to remove background hum and enhance audio quality.
Enhancing audio from video tutorials or presentations for clearer sound.
Reducing noise in interview recordings to improve clarity for transcription or listening.

Examples

1. Podcast Background Hum Removal

Podcaster
Background
A podcaster recorded an episode with a constant low-frequency hum from the microphone setup.
Problem
The hum distracts listeners and reduces audio professionalism.
How to Use
Upload the audio file, set highpass frequency to 80 Hz to filter out the hum, and enable RNNoise for additional cleanup.
Example Config
highpassFreq: 80, useRnnoise: true
Outcome
The hum is significantly reduced, resulting in a cleaner and more engaging podcast episode.

2. Interview Noise Reduction

Background
A journalist recorded an interview in a noisy environment with traffic sounds in the background.
Problem
Background noise makes it difficult to hear the interviewee clearly.
How to Use
Upload the interview audio, adjust lowpass frequency to 12000 Hz to cut high-frequency noise, and set noise floor to -25 dB.
Example Config
lowpassFreq: 12000, noiseFloor: -25
Outcome
Background noise is minimized, and the interview audio becomes clear and easy to understand.

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 file formats are supported?

The tool accepts various audio formats including MP3, WAV, AAC, M4A, OGG, Opus, and FLAC, as indicated by the audio/* file type.

What is RNNoise and when should I use it?

RNNoise is an optional neural network-based noise reduction algorithm. Enable it for advanced cleanup of complex noise patterns in audio.

Can I adjust the noise reduction level?

Yes, you can set the noise floor in dB and configure highpass and lowpass frequencies to control the reduction intensity.

What is the default output format?

The default output format is MP3, but you can choose from options like AAC, M4A, OGG, Opus, FLAC, or WAV.

Is there a file size limit?

Yes, the maximum file size is 200 MB (209715200 bytes).

API Documentation

Request Endpoint

POST /en/api/tools/audio-denoise-chain

Request Parameters

Parameter Name Type Required Description
audioFile file (Upload required) Yes -
highpassFreq number No -
lowpassFreq number No -
noiseFloor number No -
useRnnoise checkbox No -
outputFormat select No -

File type parameters need to be uploaded first via POST /upload/audio-denoise-chain 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-denoise-chain": {
      "name": "audio-denoise-chain",
      "description": "Apply a multi-step denoise chain with filters and optional RNNoise",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=audio-denoise-chain",
      "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]