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Audio Looper

Create seamless loops from an audio clip

Extracts a segment from audio and creates a perfectly seamless loop with adjustable crossfade, repetition count, and tempo matching. Essential for music production, sound design, and creating rhythmic patterns that repeat without audible seams.

Click to upload file or drag and drop file here

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

Starting point for the loop segment within the audio file.

0.1 2 30

Duration of each loop repetition. Shorter values = faster rhythmic patterns.

1 4 100

Number of times the loop segment repeats. Higher values = longer loop sequences.

0 0.1 2

Smooth transition between loop repetitions. Helps eliminate audible seams.

Attempt to match loop length to musical tempo. May affect audio quality.

Maintain original pitch when adjusting tempo. When off, tempo changes affect pitch.

0 1 1

Balance between dry (original) and wet (looped) signal.

Key Facts

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

Overview

The Audio Looper tool creates seamless loops from audio files, perfect for music production and sound design. It extracts a segment and repeats it with adjustable crossfade, repetition count, and tempo synchronization to ensure smooth, audible-seam-free loops.

When to Use

  • •When producing music tracks that require repetitive rhythmic patterns or beats.
  • •For designing looping ambient sounds in games, videos, or interactive installations.
  • •To create practice loops for musicians to improve timing and technique with consistent repetition.

How It Works

  • •Upload an audio file in a supported format like MP3, WAV, or FLAC.
  • •Set the loop start time and length to define the exact segment to be repeated.
  • •Adjust the crossfade time to blend the end and start of each repetition seamlessly.
  • •Specify the number of repetitions and optionally enable tempo synchronization for musical accuracy.

Use Cases

Creating drum and bass loops for electronic dance music production.
Generating background music loops for mobile apps, websites, or video content.
Producing sound effect loops for theater, film, or podcast post-production.

Examples

1. Seamless Drum Loop for EDM Track

Electronic Music Producer
Background
An electronic music producer is working on a track at 120 BPM and needs a repetitive drum pattern.
Problem
Manually looping the drum hit in a DAW often results in timing gaps or audible clicks.
How to Use
Upload the drum hit audio file, set loop start to 0 seconds, loop length to 2 seconds for a 120 BPM pattern, add a 0.1-second crossfade, and set repetitions to 4.
Outcome
A perfectly timed, seamless drum loop that repeats 4 times, ready for import into the digital audio workstation.

2. Ambient Sound Loop for Game Environment

Game Sound Designer
Background
A sound designer is creating ambient audio for a forest scene in a video game.
Problem
The ambient sound needs to loop continuously without breaks to maintain player immersion.
How to Use
Upload the forest ambiance recording, set loop start to 5 seconds, loop length to 10 seconds, enable tempo sync if needed, and set crossfade to 0.5 seconds for smooth blending.
Outcome
A natural-sounding, looping ambient track that can be integrated into the game engine for seamless playback.

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 supports common formats including MP3, AAC, M4A, OGG, Opus, FLAC, and WAV.

How can I make the loop sound seamless?

Use the crossfade setting to smooth transitions between repetitions, eliminating audible clicks or seams.

Can I change the tempo without affecting pitch?

Yes, enable 'Preserve Original Pitch' to maintain pitch when using tempo synchronization.

What is the maximum loop length per repetition?

Loop length can be set from 0.1 to 30 seconds per repetition.

How many times can I repeat the loop?

You can choose to repeat the loop from 1 to 100 times.

API Documentation

Request Endpoint

POST /en/api/tools/audio-looper

Request Parameters

Parameter Name Type Required Description
audioFile file (Upload required) Yes -
loopStart number No Starting point for the loop segment within the audio file.
loopLength range No Duration of each loop repetition. Shorter values = faster rhythmic patterns.
repetitions range No Number of times the loop segment repeats. Higher values = longer loop sequences.
crossfade range No Smooth transition between loop repetitions. Helps eliminate audible seams.
tempoSync checkbox No Attempt to match loop length to musical tempo. May affect audio quality.
pitchPreserve checkbox No Maintain original pitch when adjusting tempo. When off, tempo changes affect pitch.
mix range No Balance between dry (original) and wet (looped) signal.
outputFormat select No -

File type parameters need to be uploaded first via POST /upload/audio-looper 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-looper": {
      "name": "audio-looper",
      "description": "Create seamless loops from an audio clip",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=audio-looper",
      "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]