AUDIO WORKSHOP · 1.0.0

Reverb & Echo Maker

Add room ambience and repeating echoes to audio. Control delay, feedback, damping, effect mix and tail length, then export WAV or MP3.

Local processingOriginal / edited playbackWAV + MP3

1. Open audio or try a demo

Choose audio

Drop a mono or stereo file up to 20 MiB and 180 decoded seconds. Process up to 120 seconds; formats depend on your browser.

Try the demo to hear the effect before opening your own recording.

2. Shape the sound

Quick preset

Echo delay · secondsEcho feedbackEcho levelRoom feedback / decayRoom levelRoom high-frequency dampingExtra tail · seconds

Effect mix · %Output gain · dBFade each end · seconds

A synthetic room uses four damped feedback comb delays per channel. It is an effect, not a captured real-space impulse response. The explicit tail is a maximum duration and can cut off long decays.

3. Trim, compare & export

No source loaded.

Trim start · secondsTrim end · secondsDownload format

Original · full source

Peak protection attenuates the full result if needed to keep samples below 0.98. It does not normalize loudness. MP3 is lossy; tags are not copied. Changes clear the previous result until you render again.

Using Reverb & Echo Maker

Add room ambience and repeating echoes to audio. Control delay, feedback, damping, effect mix and tail length, then export WAV or MP3.

Open an audio file or try the built-in demo. The original player plays the complete source.
Choose a preset and adjust controls. Set trim start/end in seconds and choose WAV or MP3.
Create edited audio, compare playback and download the audio or settings report. Editing a control requires rendering again.

Example

Try the demo and choose Small room.
Compare the original and edited players; adjust effect mix to hear more or less of the effect.

Questions & answers

Are files uploaded?

No. Decoding, DSP and encoding run locally. Audio and filenames are not saved between visits.

What does this effect do?

A synthetic room uses four damped feedback comb delays per channel. It is an effect, not a captured real-space impulse response. The explicit tail is a maximum duration and can cut off long decays.

Can I process only part of a recording?

Yes. Trim start/end are seconds in the original decoded source. The original player still plays the full source; the result contains your selection and any chosen reverb tail.

What does effect mix mean?

Zero percent keeps the original selected audio. One hundred percent uses the processed sound. Output gain and fades are still applied. Reverb is wet-only at 100 percent.

How are clipping and volume handled?

Peak protection reduces the whole output when its peak exceeds 0.98. The report shows the peak before protection and the attenuation factor. This is not a LUFS loudness normalizer.

Which formats and limits apply?

Open mono/stereo files up to 20 MiB and 180 decoded seconds. Select up to 120 seconds. Browser decoding support varies. WAV exports 16-bit PCM and MP3 uses the existing local 192 kbps encoder. Clear audio releases source and download URLs.