Audio Echo Effect Tool

Add professional echo effects to audio, with adjustable parameters such as intensity, delay, and decay, and support for batch processing multiple audio formats.

Bug report

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

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If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

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Select audio, set echo parameters, then start processing.

Batch add echo effects like delay, feedback, decay, stereo widening, and low-pass softening. Results keep original filenames; duplicates get numbered automatically.

Local processing WAV output Batch ZIP Save settings

Current task Waiting for import

Files 0

Presets Vocal space

Output WAV

Try a sample or short audio first. Longer delay adds more space; high feedback or wet mix may increase volume, so anti-clipping is recommended.

Import audio to add echo

Supports common audio formats. The interface shows up to 20 files, but all imported files will be processed.

Drag audio here, or click to choose files

Supports MP3, WAV, OGG, M4A, AAC, FLAC, and more. Recommended max 100MB per file.

Please choose an audio file first, or load the sample to test the echo effect.

Set echo effect parameters

Choose a preset first, then fine-tune by audio type. You can also save current settings; they will be restored next time.

Echo presets For common uses like voice, music, ambience, and rhythmic delay.

Preview guide Shows a sample waveform outline. Parameter changes affect the result.

Core settings Control echo timing, repeat strength, and dry/wet mix.

Delay time 180 ms

Gap between echo and original sound. Use shorter for voice, longer for space effects.

Feedback 42%

Controls repeat energy. Too high may create a long tail.

Effect mix 36%

More wet signal makes the echo stronger; keep dry signal for clarity.

Advanced details Controls tail, tone, stereo, and output safety.

Repeats 5 times

High-frequency softening 45%

Simulates high-frequency decay in air and space. Higher values sound softer.

Stereo widening 28%

Anti-clipping normalize
Automatically controls peaks to reduce clipping risk. Tail fade-out
Let the echo tail end naturally. Keep original length
Trim the echo tail to align with video. Mono compatible
Reduce phase issues from an overly wide stereo image.

Tip: Set parameters before processing. Click “Save settings” to restore them next time.

Start batch processing

Keep this page open during processing. Large or many files may take longer.

Preparing 0%

Import audio files in step 1 first.

Preview and download results

Only the first 20 results are shown for preview; the ZIP includes all successfully processed audio.

After processing, previewable and downloadable results will appear here.

No results yet. Complete processing first.

Instructions

Software Instructions

Import audio files: Click the “Choose Audio” button, or drag audio files into the upload area. Common formats such as MP3, WAV, OGG, M4A, AAC, and FLAC are supported.
Load sample audio: If you want to test the effect first, click “Load Sample” before moving on to the parameter settings.
Select an echo preset:
- Vocal Space: Suitable for narration, podcasts, and spoken content.
- Music Delay: Suitable for melodies, accompaniment, and rhythm-based audio.
- Hall Echo: Suitable for sounds that need a wide sense of space.
- Retro Short Echo: Suitable for short, clear rhythmic echoes.
- Ambient Tail: Suitable for background audio, bed tracks, and ambient processing.
Adjust echo parameters:
- Delay time: Controls the time interval between the echo and the original sound.
- Feedback amount: Controls the repeated energy of the echo; higher values create a longer tail.
- Effect mix: Controls the ratio between the processed echo and the original sound.
- Repeat count: Controls the number of echo repeats.
- High-frequency softening: Makes the echo tail smoother and reduces harshness.
- Stereo widening: Enhances the spatial distribution of the left and right channels.
Save settings: Click “Save Settings” to save the current parameters, which will be restored automatically the next time you open the tool.
Start processing: Click “Start Processing Echo Effect,” and the tool will process all imported audio using the current parameters.
Preview and download: After processing is complete, you can preview the first 20 results. If more files were imported, the other results will be included in a ZIP file. Click “Download All Results ZIP” to save them.

FAQ

A: For voice content, you can use a shorter delay, such as 80ms to 220ms. For music and spatial ambience, you can use a longer delay, such as 260ms to 700ms. The longer the delay, the more noticeable the interval between echoes.

A: Feedback amount determines how much energy is retained in each echo, while repeat count determines how many rounds of echoes are generated. With higher feedback, the tail becomes longer; with more repeats, the echo layers become more pronounced.

A: Effect mix controls the ratio between the echo signal and the original sound. At a lower ratio, the main sound is clearer; at a higher ratio, the echo effect is more prominent.

A: Echo is layered over the original sound, which may increase volume peaks. Enabling anti-clipping normalization can automatically control peaks and reduce the risk of distortion and popping.

A: When enabled, it truncates the echo tail so the processed audio has the same duration as the original audio. This is useful when you need to align it with video, subtitles, or multitrack audio.

A: To keep page interactions smooth, the interface only displays the first 20 files and results. All imported files will be processed, and the ZIP download will include all successfully generated audio files.