# Video Audio Track Repair, Loudness, and Replacement

Decide what happens to the sound inside a video — repair noise and loudness, normalize to the EBU R128 delivery standard, replace a licensed music track, or strip audio entirely for silent delivery.

> Canonical page: https://elysiatools.com/en/hubs/video-audio-track-repair-and-replacement

- **Keywords:** video audio track repair, normalize video loudness EBU R128, replace music in video, remove audio from video, video sound noise reduction, adjust video volume

## Frequently asked questions

### Why normalize to EBU R128 instead of just turning it up?

R128 measures perceived loudness the way platforms do, so normalized audio stops triggering the automatic level adjustments that quietly re-louden or re-quiet uploads. A plain volume change cannot make that promise.

### The replacement audio drifts out of sync. What went wrong?

Replacement keeps the video stream and swaps the audio, so drift usually means the new track started at the wrong moment or has a different duration. Line up a recognizable moment, then verify sync at the end of the video, not just the start.

### I only need the video without any sound. Is re-encoding safer?

No — removing the audio track keeps the video stream as it is, which is faster and lossless compared to a re-encode that risks quality for no reason. Confirm silence by playing the actual delivered file.

### Can noise reduction damage the voice?

Yes, when applied aggressively — speech starts sounding underwater or gated. Use the lightest setting that removes the noise, and judge by intelligibility of a spoken sentence, not by how quiet the background got.

## Related content

- [Video Delivery Format Conversion: Audio, Streams, GIF, WebM, and MP4](https://elysiatools.com/en/hubs/video-convert): Choose a delivery target for a video or animation, extract only the needed audio or video stream, and convert short motion assets while recording quality and compatibility trade-offs.
- [Stream Copy, Remux, and Media Packaging](https://elysiatools.com/en/hubs/stream-copy-remux-and-media-packaging): Inspect streams, remux containers, trim by timestamp, mux tracks, softmux subtitles, embed cover art, and batch rewrap media while preserving source quality.
- [Video Editing and Effects for Short Clips](https://elysiatools.com/en/hubs/video-editing-and-effects-tools): Shape a short video in a controlled order: choose the time range, fix the frame direction, add only the needed pace or visual effect, and verify the result.
- [Convert Audio Without Guessing the Codec or Delivery Settings](https://elysiatools.com/en/hubs/audio-convert): Inspect the source, choose one deliberate conversion path, change only destination-required parameters, and verify the delivered audio file.