Normalize Video Audio via API

Normalize audio loudness across video files for consistent playback volume. Uses EBU R128 broadcast standard to ensure professional-grade audio levels.

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Loading FFmpeg engine... (~31 MB)

Use the API

curl -X POST https://renderio.dev/v1/commands \
  -H "X-API-KEY: ffsk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
  "ffmpeg_command": "-i {in_video} -af \"loudnorm=I=-16:TP=-1.5:LRA=11\" -c:v copy {out_video}",
  "input_files": {
    "in_video": "https://example.com/input.mp4"
  },
  "output_files": {
    "out_video": "output.mp4"
  }
}'

Need an API key? Get your free API key to start processing files programmatically.

Common Variations

YouTube standard (-14 LUFS)

-i input.mp4 -af "loudnorm=I=-14:TP=-1:LRA=11" -c:v copy output.mp4

Podcast standard (-16 LUFS)

-i input.mp4 -af "loudnorm=I=-16:TP=-1.5:LRA=11" -c:v copy output.mp4

Simple volume boost

-i input.mp4 -af "volume=1.5" -c:v copy output.mp4

Dynamic range compression

-i input.mp4 -af "acompressor=threshold=-20dB:ratio=4:attack=5:release=50" -c:v copy output.mp4

Related Operations

Compress Video via API | RenderIO Extract Audio from Video via API | RenderIO Convert Stereo to Mono Audio via API | RenderIO Denoise Video via API | RenderIO

Need to process at scale?

Automate this with the RenderIO FFmpeg API. Process thousands of files programmatically or through no-code video automation.

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