Video Audio Master
Use this to add background music to vlogs, boost the volume on too-quiet videos, mute videos with unwanted ambient noise, or layer music onto silent promo clips.
Free to download, install and update. No signup; all 76 tools are free within daily limits, Pro only lifts the limits.

What it does
Use this to add background music to vlogs, boost the volume on too-quiet videos, mute videos with unwanted ambient noise, or layer music onto silent promo clips.
How to use it
- 1Drag video files into the list.
- 2Set what you need:
- 3Click Run.
Use cases
Add background music to a vlog
Add the video, pick a music file, Mix Ratio 25%, run. Music sits underneath the speech.
Layer music onto a silent promo
Add the video, Mute Original Audio on, pick the music, Mix 80%, run.
Boost a too-quiet video
Add the video, Volume 150%, run.
Mute ambient noise in batch
Add the videos, Mute Original Audio on, no background music, run. You get fully silent videos.
Frequently asked questions
Is Video Audio Master free?
Yes. Downloading, installing and updating BulkPro is free and requires no signup. All 76 tools work for free within daily usage limits; Pro plans only lift the daily limits of the modules you pick.
Local processing
Runs on your CPU/GPU. No file leaves your machine.
Batch ready
Process dozens or thousands of files in one run.
Part of BulkPro
Bundled with 76 tools across 7 modules: one install, one app.
Full UI reference, step-by-step workflows, edge cases
Every input, button, and behavior documented for advanced users.