RTCInboundRtpStreamStats: concealedSamples property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since August 2022.

The concealedSamples property of the RTCInboundRtpStreamStats dictionary indicates the total number of concealed samples for the received audio track over the lifetime of this stats object.

A concealed sample is a sample that was lost or arrived too late to be played out, and therefore had to be replaced with a locally generated synthesized sample. Note that lost samples are reported in packetsLost, while late packets are reported in fecPacketsDiscarded.

Note: The value is undefined for video streams.

Value

A positive integer.

Specifications

Specification
Identifiers for WebRTC's Statistics API
# dom-rtcinboundrtpstreamstats-concealedsamples

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
concealedSamples in 'inbound-rtp' stats
Chrome – Full support
Chrome 86 (Release date: 2020-10-20)
footnote Full support
Edge – Full support
Edge 86 (Release date: 2020-10-09)
footnote Full support
Firefox – Full support
Firefox 104 (Release date: 2022-08-23)
footnote Full support
Opera – Full support
Opera 72 (Release date: 2020-10-21)
footnote Full support
Safari – Full support
Safari 14.1 (Release date: 2021-04-26)
footnote Full support
Chrome Android – Full support
Chrome Android 86 (Release date: 2020-10-20)
footnote Full support
Firefox for Android – Full support
Firefox for Android 104 (Release date: 2022-08-23)
footnote Full support
Opera Android – Full support
Opera Android 61 (Release date: 2020-12-07)
footnote Full support
Safari on iOS – Full support
Safari on iOS 14.5 (Release date: 2021-04-26)
footnote Full support
Samsung Internet – Full support
Samsung Internet 14 (Release date: 2021-04-17)
footnote Full support
WebView Android – Full support
WebView Android 86 (Release date: 2020-10-20)
footnote Full support
WebView on iOS – Full support
WebView on iOS 14.5 (Release date: 2021-04-26)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also