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Audio Tremolo

Add a tremolo effect (amplitude modulation)

Applies periodic volume modulation with configurable rate and depth for classic tremolo or rhythmic chops.

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 Tremolo tool adds a classic tremolo effect to audio files by modulating volume at a configurable rate and depth, perfect for creating vintage sounds or rhythmic chops.

When to Use

  • •When you want to apply a pulsating volume effect to music tracks or audio recordings.
  • •For adding rhythmic variations to audio loops, samples, or synth pads in production.
  • •To simulate the tremolo effect of vintage guitar amplifiers or create dynamic sound effects.

How It Works

  • •Upload your audio file in a supported format such as MP3, WAV, or AAC.
  • •Adjust the modulation rate in Hertz and depth from 0 to 1 to control the effect's speed and intensity.
  • •Select an output format from options like MP3, WAV, or FLAC, then process and download the modified audio.

Use Cases

Enhancing guitar recordings with a warm tremolo effect for retro or surf rock music.
Adding rhythmic chops to synth lines in electronic music production to improve groove.
Creating stuttering volume effects for podcasts, videos, or sound design projects.

Examples

1. Vintage Guitar Tremolo

Guitarist
Background
A guitarist has a clean solo recording that needs a classic tremolo effect to match a 1960s rock style.
Problem
The solo sounds too flat and lacks the rhythmic pulsation characteristic of vintage tremolo amps.
How to Use
Upload the guitar_solo.mp3 file, set the rate to 4 Hz for a slow modulation, depth to 0.9 for a pronounced effect, and output as WAV for high quality.
Outcome
The audio now features a smooth, rhythmic tremolo that enhances the vintage vibe of the track.

2. Rhythmic Synth Chops

Background
An electronic producer is working on a beat and wants to add movement to a static synth pad.
Problem
The synth pad is too steady and doesn't contribute to the track's energy or rhythm.
How to Use
Upload synth_pad.aac, adjust the rate to 12 Hz for fast chops, depth to 0.6 for a moderate effect, and save as OGG for web compatibility.
Outcome
The synth pad now has a choppy tremolo that syncs with the beat, adding dynamic variation to the music.

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 for upload?

The tool accepts common audio formats like MP3, WAV, AAC, and others under the audio/* type.

What are the default rate and depth settings?

The default rate is 5 Hz and depth is 0.7, but you can adjust them within 0.5-20 Hz and 0-1 respectively.

Can I process multiple audio files simultaneously?

No, this tool processes one audio file at a time per operation.

What output formats can I choose from?

Available formats include MP3, AAC, M4A, OGG, Opus, FLAC, and WAV.

Is there a file size limit for uploads?

Yes, the audio file must be under 200 MB.

API Documentation

Request Endpoint

POST /en/api/tools/audio-tremolo

Request Parameters

Parameter Name Type Required Description
audioFile file (Upload required) Yes -
rateHz number No -
depth number No -
outputFormat select No -

File type parameters need to be uploaded first via POST /upload/audio-tremolo 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-tremolo": {
      "name": "audio-tremolo",
      "description": "Add a tremolo effect (amplitude modulation)",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=audio-tremolo",
      "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]