Local Audio Editor — Secure, Private, No Uploads
Most online audio editors work by uploading your recording to a server you don't control. MediaVault's audio editor runs entirely inside your browser tab using WebAssembly, so therapy sessions, patient notes, legal depositions, interviews and internal meetings can be cleaned up without ever leaving your device.
What you can edit locally
- Noise reduction. Strip hiss, hum, fan noise and room tone from voice recordings.
- Pitch & speed modulation. Shift pitch for voice anonymization, or retime a recording without chipmunk artifacts.
- Volume normalization. Even out loudness across speakers so nobody has to ride the volume knob.
- Silence removal. Cut dead air out of long interviews and lectures automatically.
- Vocal separation. Split vocals from backing audio.
- Audio extraction & conversion. Pull audio out of video and export MP3 or WAV.
Why "secure" matters more than "online"
If a recording contains health information, client details or anything under NDA, uploading it to a cloud editor makes that vendor a data processor. That's the exact step frameworks like HIPAA and GDPR force you to justify, document and contract for. MediaVault removes the step entirely: there is no upload, no server-side copy and no retention window, because the processing happens in your own browser's memory. Close the tab and the audio is gone.
MediaVault is a local tool, not a certification. It removes the cloud transfer risk — your organization still owns its own compliance review.
MediaVault vs cloud audio editors
- No upload wait. A 500MB interview starts processing instantly instead of trickling up your connection.
- No watermarks or export caps on standard edits.
- Works offline. Once the page is loaded, editing keeps working on a plane or an air-gapped machine.
- No account required to start editing.
How to edit audio privately in your browser
- Open MediaVault and pick an audio tool from the sidebar.
- Drop in your file — it loads straight into browser memory.
- Apply denoising, pitch, normalization or silence removal and preview the result.
- Download the finished track. Nothing was ever transmitted.
Frequently asked questions
Is my audio uploaded to a server?
No. Every operation runs in WebAssembly inside your tab. There is no transmission, storage or retention.
Can I edit confidential or regulated recordings?
Because files never leave your device, no third-party processor is involved — the part that usually blocks cloud editors under HIPAA or GDPR. Confirm with your own compliance team before adopting any tool.
What file formats are supported?
MP3, WAV, M4A, AAC, OGG and FLAC, plus audio tracks pulled from MP4, MOV, WebM and AVI video.