What audio formats does this tool support?

You can upload any standard audio file and export the repaired output as MP3, WAV, FLAC, M4A, or OGG.

Does this tool use AI or machine learning to recreate audio?

No, this tool uses deterministic spectral compensation, including adjacent-band support, FFT smoothing, and EQ reconstruction, rather than ML-based audio in-painting.

How do I choose the right target band?

Select 'Low-mid Body' or 'Midrange' for warmth and core frequencies, 'Presence' for dialogue intelligibility, or 'Air' for high-frequency brightness.

What does the Repair Amount slider do?

It controls the gain and intensity of the spectral compensation applied to the selected frequency band.

Can I use this tool to repair broadband noise?

No, this tool is specifically designed to fill in missing or notched frequency bands, not to remove background noise or hiss.

Audio Spectral Hole Repair | Online Free Tool

Examples

1. Restoring Muffled Podcast Dialogue

Podcast Editor

Background

A podcast interview was recorded with a low-quality microphone, resulting in a severe loss of presence and intelligibility in the speaker's voice.

Problem

The dialogue sounds muffled and lacks clarity in the upper-mid frequencies.

How to use

Upload the dialogue audio file, select the 'Dialogue Clarity' repair profile, set the target band to 'Presence / Intelligibility', set the repair amount to 0.8, and choose WAV as the output format.

audioFile: dialogue.wav, repairProfile: dialogue, targetBand: presence, repairAmount: 0.8, smoothness: 0.6, outputFormat: wav

Outcome

The missing presence frequencies are restored, making the speaker's voice sound clear and intelligible.

2. Recovering Body in an Over-Filtered Acoustic Guitar Track

Mixing Engineer

Background

An acoustic guitar track was processed with a harsh notch filter during tracking, leaving a noticeable hole in the low-mid frequency range.

Problem

The guitar sounds thin and lacks the natural warmth and body of the instrument.

How to use

audioFile: guitar.mp3, repairProfile: music, targetBand: low-mid, repairAmount: 0.75, smoothness: 0.7, outputFormat: flac

Audio Spectral Hole Repair | Online Free Tool | Elysia Tools

Audio Spectral Hole Repair

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Examples

1. Restoring Muffled Podcast Dialogue

2. Recovering Body in an Over-Filtered Acoustic Guitar Track

FAQ

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