Wireless dropouts.
A digital wireless link that drops a moment can leave exact silence. Holes up to 100 ms with sudden edges are filled: “Short holes of lost audio were found, so they are filled from nearby sound.”
SOLIPSIUM Super resolution audio engine
Lapel microphones
Fix the sound of a lavalier or lapel microphone.
Drop the recorder's or the receiver's file here. Solipsium measures its holes, noise and clipping before it changes anything.
Drop a lapel mic recording
Solipsium checks it in your browser for clipping, hum and noise, without uploading it. It can then repair the first 20 seconds for you to hear, with no account.
WAV, MP3, M4A, MP4 and more, up to five minutes for the check.
Your first 20 seconds
After signing up, drop the same file into the editor to repair all of it.
What Solipsium hears
Make a free account to repair the whole recording
Then drop the same file into the editor. Scans and short repairs are free.
Fault by fault
What a lapel microphone brings, and what is repaired.
The check in your browser names dropouts, background noise, mains hum, clipping and muffled sound. The try repairs the first 20 seconds.
A laugh into the microphone.
Flat tops up to 10 ms long are partly raised back from the undamaged samples around them, never more than 2.3 dB over the clip level. A top that is unsafe to raise is left exactly as it was.
The room.
A steady floor within 26 dB of the voice gets Full-band speech cleanup, a speech model that keeps the voice's full range and lowers what surrounds it. The result reads: “A steady noise floor was found, so it is removed.”
Rustle.
Clothing rubbing on the microphone is a short, changing sound, not a fault the repair measures, so it stays.
Placement
Most lapel problems start with where it sits.
A few centimetres change the sound more than any repair.
On the chest, above the heart.
A hand's width below the chin hears the voice clearly without the breath.
Clear of fabric.
Under a shirt the microphone dulls the voice and picks up rustle. If it must hide, fix it so the fabric cannot move against it.
Set the level for a laugh.
Set the transmitter's gain on the loudest moment, so a laugh does not clip.
Questions
About lapel microphones.
It sounds muffled under clothing.
Fabric dulls the treble without cutting it off, so the sound usually reaches past 11 kHz, which does not count as muffled, and nothing is rebuilt. Moving the microphone out from under the fabric helps the next recording.
Can it remove rustle?
Not in the try. In the editor, with a free account, drag a box on the spectrum over the time and pitch of a sound, then turn it down or redraw it from the sound around it. Nothing outside the box changes.
Two people, two microphones?
Repair each microphone's track on its own. With a free account, the editor takes one track per project.
Interference buzz?
A buzz with a steady 50 or 60 Hz line under it is mains hum, and is notched out. Radio interference at another pitch is not.
Is my recording uploaded?
Not for the check, which runs in your browser. Pressing Repair the first 20 seconds sends those 20 seconds; when your browser could not open the file, or it runs over five minutes, the file itself goes to Solipsium's server, so the try is offered for it only up to 25 MB. Solipsium keeps only the first 20 seconds and deletes them within an hour. If you are signed in, a file you drop or choose is uploaded to your account and opens in the editor instead. The privacy notice has the rest.
Free audio tools
Related free tools.
For other close microphones.
- Fix audio dropouts
Short holes of exact silence, found and filled.
- Fix the sound of a wedding video
A lapel recorder on the groom, and the camera's microphone.
- Fix distorted audio
Flattened peaks partly raised back.
- Remove a sudden noise
One thump, turned down with a box on the spectrum.
- All free audio tools
Every free tool on one page.
The whole recording.
Make a free account and drop the same file into the editor to repair all of it, up to 30 minutes at a time.
Repair the whole recording
Free account, no card.