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Merged
pull merged 2 commits into from
Aug 28, 2025
Merged

[pull] main from mdn:main #294

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2848073
Editorial review: Document RTCEncodedAudioFrame.getMetadata() audioLe…
chrisdavidmills Aug 27, 2025
00644f6
chore(deps-dev): bump jest from 30.0.5 to 30.1.1 (#40914)
dependabot[bot] Aug 27, 2025
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2 changes: 2 additions & 0 deletions files/en-us/web/api/rtcencodedaudioframe/getmetadata/index.md
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Expand Up @@ -26,6 +26,8 @@ None.

An object with the following properties:

- `audioLevel`
- : A number representing the audio level of this frame. The value is between 0 and 1 inclusive (linear), where 1.0 represents 0 dBov ([decibels relative to full scale (DBFS)](https://en.wikipedia.org/wiki/DBFS)), 0 represents silence, and 0.5 represents approximately 6 dB SPL change in the [sound pressure level](https://en.wikipedia.org/wiki/Sound_pressure#Sound_pressure_level) from 0 dBov. The value is converted from the -127 to 0 range specified in [RFC6464](https://www.rfc-editor.org/rfc/rfc6464) via the equation `10^(-rfc_level/20)`. If the RFC6464 header extension is not present in the received packets of the frame, `audioLevel` will be `undefined`.
- `synchronizationSource`
- : A positive integer value indicating synchronization source ("ssrc") of the stream of RTP packets that are described by this frame.
A source might be something like a microphone, or a mixer application that combines multiple sources.
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2 changes: 1 addition & 1 deletion package.json
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Expand Up @@ -63,7 +63,7 @@
"devDependencies": {
"cspell": "9.2.0",
"cspell-group-by-file-reporter": "^1.0.1",
"jest": "^30.0.5",
"jest": "^30.1.1",
"lefthook": "^1.12.3",
"markdownlint-cli2": "0.18.1",
"markdownlint-rule-search-replace": "1.2.0",
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