Nodaro DocsAdjust Volume
Change the volume of an audio track or of a video's sound, level it with Normalize, and add a fade-in and a fade-out of up to 10 seconds each.
The Adjust Volume node changes the volume of an audio track, or of a video's sound, and can add a fade-in and a fade-out. Normalize levels the sound to a standard loudness, which keeps clips from different sources at the same level. Wire in audio to get audio back, or a video to get the same video back with its sound adjusted.
When to use it
- Level voiceover clips so that they all play at the same loudness.
- Fade a music track in and out.
- Lower background audio before you mix it under a voice.
- Boost a quiet recording.
Quick start
Add the node
Press Tab on the canvas and choose Audio › Edit Audio › Adjust Volume.
Wire the media
Wire an audio node or a video node into the Media input.
Set the level and the fades
Open the settings panel. Set Volume (%), or turn on Normalize. Add a Fade In (s) and a Fade Out (s) if you want them.
Run it
Click Run on the node. For audio, the result appears on the Audio output. For a video, it appears on the Video output.
Input and output
| Input | Accepts | What it does |
|---|---|---|
| Media | Audio and video nodes | The audio track, or the video whose sound you want to change. |
The output follows the input. For audio, the output is Audio. For a video, the output is Video: the same video with its sound adjusted.
Settings
| Setting | What it does |
|---|---|
| Volume (%) | From 0 to 200. The default is 100, the original level. |
| Normalize | Levels the sound to a standard loudness. Off by default. When on, the Volume value is ignored. |
| Fade In (s) | A fade-in at the start, from 0 to 10 seconds. The default is 0. |
| Fade Out (s) | A fade-out at the end, from 0 to 10 seconds. The default is 0. |
The fades are applied after the volume change.
Tips
- Normalize mixed sources. Audio from different sources, such as several Text to Speech clips, plays at a consistent level with Normalize on.
- Stay at or below 100%. Higher values can clip.
- Use short fades. Fades of 0.5 to 1 second give a smooth start and end.
- Balance before you mix. Set the level of each source here, then layer them with Mix Audio. To balance several tracks in one place, set per-track volumes in Mix Audio.
From the API
POST /v1/adjust-volume takes audioUrl or videoUrl, plus the optional volume, normalize, fadeIn and fadeOut. See Voice and media.
Frequently asked questions
Related
Mix Audio
Audio FX
Text to Speech
Merge Video & Audio
Last updated on
Mix Audio
Layer several audio tracks into one file, with a volume from 0 to 200% for each. Put a voiceover over music, or effects over an ambience, before adding video.
Audio FX
Put a voice in a room, a car or a church with a reverb, or add a telephone, megaphone or echo effect. A flat 20 credits per run, plus custom delay and EQ.