What does Audio & Video Volume Booster do?
Tubelexity increases the level of an audio file or a video's soundtrack with bounded decibel or percentage controls. When browser decoding is available, it draws a waveform and measures the peak before export. Normalization can target safe headroom, and an optional limiter reduces hard clipping. Video can keep its original picture stream when the output container is unchanged.
How to use Audio & Video Volume Booster
- 1Choose an audio file or video with sound.
- 2Review the waveform and detected peak when available.
- 3Set gain, normalization, limiter, trim and fades.
- 4Export boosted audio or a video with boosted sound.
Supported inputs and outputs
Inputs
MP3, WAV, M4A, MP4, MOV, WebM, other decodable audio/video
Outputs
MP3, WAV, MP4, WebM
Practical uses
- Raising a quiet narration
- Balancing a screen recording
- Normalizing podcast audio
- Boosting a video before upload
Browser and media limitations
- Excessive gain can reveal noise and distortion.
- Peak analysis is unavailable when the browser cannot decode the source.
- The limiter prevents many overs but cannot repair clipped source audio.
- Changing video containers can require video re-encoding.
How local processing works
Processing uses FFmpeg.wasm locally in this browser. The media engine downloads on first use, but Tubelexity does not upload the selected media to a processing server.
Frequently asked questions
How much can I boost audio?
Gain is limited to +18 dB, or about 800%, to prevent unsafe unlimited values.
What does normalization do?
It calculates gain from the measured peak and aims below full scale for headroom.
Can boosted audio clip?
Yes. The peak warning predicts clipping and the optional limiter provides protection.
Can I boost audio in a video?
Yes. The tool processes the soundtrack and preserves the picture stream when compatible.
Is my media uploaded?
No.