Audio & Music tool

Audio Effects

Cut audio or extract a video soundtrack, add echo, reverb, robot and more, then preview and download MP3 or WAV privately on your device.

Drop audio or a video here
Finding an audio file on iPhone
  1. Tap Choose file, then Browse. Look in On My iPhone or iCloud Drive. Downloaded files are often in Downloads.
  2. For Voice Memos, open the recording, choose Share, then Save to Files. Return here and select the saved file.

Websites cannot browse every app's private folders. You choose which file to share. Or use the microphone recorder below instead.

MP3, WAV, M4A, FLAC, OGG and supported video soundtracks · up to 100 MB and six minutes. Export clips up to six minutes. Longer clips with several effects may take more time on older devices.

Choosing or dropping a file starts preparation automatically. First use downloads approximately 32 MB from jsDelivr, which receives connection details but never your file. The engine may already be cached from our video tools. Your audio stays on your device; no AI processing or media uploads.

Or record audio here

0:00 / 2:00

Use your microphone, then send the clip straight to the editor. No saving or searching through folders.

Microphone access starts only after you press Record audio and allow permission. Keep this page open and your screen unlocked. Stops automatically after two minutes. Your recording stays in this tab until you download it; closing or reloading the page loses it.

SHAPE YOUR SOUND

Effects controller

0 effects on

Switch an effect on, then drag its dial up or down. Keyboard: arrow keys, Home and End. Press Apply effects to hear changes.

A distinct repeat behind the original sound. Dial controls repeat strength.

Echo amount35%

A synthetic room ambience made from closely spaced reflections.

Reverb amount40%

Fast pulsing gives speech a buzzy, mechanical character.

Robot amount80%

Add up to 20 voices including the original. Strength blends them in, Detune increases pitch movement, and Width spreads them left and right. Try headphones to hear the width.

Strength80%
Voices3

Voices includes your original; 1 leaves it unchanged. Unison follows the melody. Octaves adds higher and lower octaves. Harmony adds fixed fifths, fourths and octaves—not automatic key detection. Best on a solo voice; more voices take longer, especially on phones.

Detune20%
Width75%

0% Detune keeps exact intervals; higher values slightly sharpen and flatten the added voices. Width affects the added layers, not the original stereo. The clip keeps its speed and duration.

Lower or raise the notes while keeping approximately the same duration. Large shifts can sound artificial.

Pitch amount0 semitones

Adds a rough, overdriven edge. Start with a low amount.

Distortion amount25%

Narrows the sound to a thin, old-phone tone. Dial controls how narrow.

Telephone amount60%

A rhythmic volume wobble. Dial controls its depth.

Tremolo amount45%

Digital signal loss: missing words, repeated fragments and robotic garbling. No added hiss or crackle. Signal loss goes from slight breakup to barely connected; this is a creative simulation, not a real phone codec.

Signal loss60%

Narrow-band radio voice with strong compression and slight crunchy overload on louder words, gently fluctuating static, transmit/release sounds and an optional Roger beep.

Walkie-talkie amount80%
Overload40%

Turn up for a rougher, buzzy edge on louder words. Drag up or down, or use the arrow keys. Static stays unchanged.

A looping crackle sample with adjustable surface hiss and warmth. Pitch dips then rises once every 1.8 seconds, like a worn 33⅓ RPM record.

Record age60%
Speaker quality0%

0% keeps the current tone. Turn towards 100% for a thin, tinny gramophone speaker with very little bass.

At 20% and 75% of your selection, jump forward ½ second on each of eight revolutions (1.8 seconds apart), with a scratch sound at every jump. Short clips may have fewer skips. Skipped audio is removed from the result.

Deep, compressed speech with a hollow tube resonance. Monotone works best on a solo voice and mixes stereo to mono. At 100%, detected vowels aim for your target note; breaths and consonants remain natural. Speak comfortably without straining your throat.

Intensity60%
Depth6 semitones
Monotone75%
Hollow resonance70%

Use Monotone at 100% for the flattest voice. Other pitch effects can shift the final note.

Fade in0 s
Fade out0 s

Fades apply to the selected source before echo/reverb. Reflections can extend the clip slightly. Old record adds two seconds of surface noise before and after your track. Radio bursts and the optional beep add up to 0.44 seconds around the audio. A peak limiter reduces overload, but keep your speaker/headphone volume comfortable.

Choose a file or record audio to begin.

Processed privately in your browser — your entries are not uploaded.

Good to know

How this tool works

Choose a recording and prepare the local engine. Drag the waveform handles, switch effects on and adjust their dials. Update the preview after changes, compare the original selection, then download WAV or create an MP3 copy.

Frequently asked questions

What is Audio Effects useful for?

Trim, convert and transform audio with a local effects rack. Listen through the finished file at a comfortable volume and keep the unedited original.

Is my information stored?

This tool works in your browser. The information you enter is not sent to us or saved in an account by this tool.

How accurate is the result?

The calculation follows the assumptions shown on the page. Rounding, provider methods and real-world charges can produce small differences.

Keep going

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