ENPTES

Add an echo to a short audio file

Pick light, medium or strong, then download the same file type. A note comes back a little later. The work runs in this tab.

Runs in your browser Free No sign-up
  1. Choose file
  2. Set options
  3. Get result

Your file never leaves your device. Processed locally in your browser. Nothing is uploaded.

The FFmpeg aecho filter repeats the note after a delay. Light waits about 90 ms. Strong waits 250 ms and 500 ms, so the file can run longer. The file type stays. Audio up to 10 minutes. A video belongs on the video pages.

How to add an echo

1. Drop an audio file you already have. A photo or a video is refused here. 2. Leave light, or pick medium or strong. 3. Press “Apply echo” and download.

GustKit runs the FFmpeg aecho filter. Light waits about 90 ms and sends one quiet repeat. Strong waits 250 ms and 500 ms, so the file runs a little longer than the note you dropped. MP3, WAV, M4A, OGG and FLAC stay in that type. A video soundtrack belongs on the video pages.

A delay, not a short room

Audio reverb uses a very short pair of repeats, about 40 ms and 80 ms, so it sounds like a small room. This page uses a longer delay you can hear as a separate repeat. It does not change the bitrate on its own. The extension stays the same.

The audio stays in this tab

FFmpeg runs in this browser. GustKit does not fetch audio from a link. Close the tab and the file is gone. Files up to the limit shown next to the button.

How to check the echo

1. Play the download next to the original. 2. A short note should come back later. Strong should wait longer than light, and the file can run past the original ending. 3. If the file type changed, you opened a different page.

Audio reverb uses a very short room, about 40 ms and 80 ms. This page runs the FFmpeg aecho filter with a longer delay and keeps the file type. Nothing is uploaded.

Frequently asked questions

The note comes back later and the file is still WAV. Did it work?

Yes. Strong places repeats at 250 ms and 500 ms, so the download is longer than the original. The extension stays the same.

Why is the file type the same?

This page re-encodes inside the type you dropped. MP3 stays MP3. WAV stays WAV.

Can I add an echo and also add reverb in one step?

No. Apply the echo first, or apply the reverb first, then open the other page on the download.

Is the audio uploaded?

No. The echo runs in this tab.

The download is longer than the clip I dropped and the note repeats. Did it work?

Yes. Strong adds repeats at 250 ms and 500 ms, so the file continues after the original ending.

Can I add an echo and also gate the quiet parts in one step?

No. Apply the echo first, or apply the gate first, then open the other page on the download.