Upload Your Audio File

Drop audio or video here, or import from:

high pitchlow pitchposition in sample
Load audio to activate
Direction
Effects
Upload audio to get started.

Create more than a processed copy

The granular engine behaves like an instrument. Every movement and parameter change produces a new performance rather than a fixed one-click effect.

Interactive grain canvas

Move across the canvas to choose the sample position and reshape pitch while the sound is playing.

Flexible sample zones

Drag the waveform handles to focus the engine on a vocal phrase, drum hit, chord, or any other section.

Six ready-to-play presets

Explore ambient piano, glitch drums, frozen voice, nature texture, crystal pad, and lo-fi guitar starting points.

Record complete performances

Capture the live output, including canvas movement and parameter changes, then download a stereo WAV.

How to Use the Granular Synthesizer

A complete sound can be created in four steps.

  1. 1

    Load source audio

    Upload a supported audio file or choose a preset to start the engine with prepared settings.

  2. 2

    Choose a sample zone

    Drag either waveform handle to define the portion of the recording used for new grains.

  3. 3

    Play and sculpt

    Press Play, move around the grain canvas, and adjust grain, motion, direction, and effect controls in real time.

  4. 4

    Record and download

    Start recording, perform your changes, stop when finished, and save the result as a WAV file.

What You Can Create

Different source recordings and parameter combinations can produce a wide range of reusable sounds.

Ambient textures and pads

Turn piano, guitar, voice, and field recordings into slowly evolving backgrounds for music or video.

Sound design and Foley

Transform impacts, machinery, nature, or household recordings into unusual effects for film, games, and podcasts.

Glitch and experimental music

Combine small grains, high density, wide scatter, pitch shifts, and reverse playback for unstable rhythmic textures.

Lo-fi and vaporwave layers

Slow samples down, add delay and reverb, and use light distortion to create worn and nostalgic layers.

Generative backgrounds

Leave the engine playing to let its automatic scan movement produce a continuously changing soundscape.

Music technology learning

Hear how each control changes the output immediately while the waveform and animated grain canvas provide visual feedback.

Useful Starting Points

Small adjustments can move the result from smooth and musical to sparse or chaotic.

For smooth ambient sound

Use larger grains, lower density, restrained scatter, and generous reverb.

For rhythmic glitch

Use very small grains, high density, broad scatter, and a little distortion.

For frozen vocals

Select a short sustained vowel, slow the engine, lower pitch, and add delay or reverb.

For controlled recording

Set the sample zone and basic effect levels before recording, then perform only the parameters you want to hear changing.

Browser Granular Synth vs a DAW Plugin

Both approaches can create granular textures, but they suit different workflows.

Browser synthesizerDAW plugin
SetupOpen the page and load audioInstall a DAW and compatible plugin
Live controlsCanvas, sample zone, parameters, and effectsUsually deeper automation and routing
RecordingDirect stereo WAV captureRecorded or bounced inside the DAW
Best forFast experimentation and portable useDetailed production inside a larger project

The browser tool is designed for immediate sound exploration. A full DAW remains better suited to multitrack arrangement and advanced mixing.

Frequently Asked Questions

What audio formats can I upload?

The uploader accepts common browser-supported formats including MP3, WAV, FLAC, OGG, AAC, and M4A.

Horizontal movement changes where grains are taken from inside the selected sample zone. Vertical movement changes pitch.

Grain size controls how long each fragment lasts. Density controls how many fragments are started each second.

Scatter adds random variation around the current sample position. Higher values pull grains from a wider part of the selected zone.

Yes. Switch Direction from Forward to Reverse while the engine is stopped or playing.

No. The six starter sounds are generated locally in the browser and load without relying on third-party sample hosting.

Press Record to capture the live output. Press Stop Rec when finished, then use Download WAV.

No. Source decoding, granular playback, effects, recording, and WAV creation all run locally.

Yes. The controls switch to a single-column layout and the grain canvas supports touch interaction.