Chrome recently added the option of adding redundancy to audio streams using the RED format as defined in RFC 2198, and Fippo wrote about the process and implementation in a previous article. You should catch-up on that post, but to summarize quickly RED works by adding redundant payloads with different timestamps in the same packet. […]
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RED: Improving Audio Quality with Redundancy
Back in April 2020 a Citizenlab reported on Zoom’s rather weak encryption and stated that Zoom uses the SILK codec for audio. Sadly, the article did not contain the raw data to validate that and let me look at it further. Thankfully Natalie Silvanovich from Googles Project Zero helped me out using the Frida tracing […]
True End-to-End Encryption with WebRTC Insertable Streams
A couple of weeks ago, the Chrome team announced an interesting Intent to Experiment on the blink-dev list about an API to do some custom processing on top of WebRTC. The intent comes with an explainer document written by Harald Alvestrand which shows the basic API usage. As I mentioned in my last post, this is the […]
and the WebRTC Open Source Popularity Contest Winner is…
An analysis of the most popular open-source WebRTC repos on GitHub with a review of how WebRTC itself is doing there.
How Zoom’s web client avoids using WebRTC (DataChannel Update)
Editor’s Note: This post was originally published on October 23, 2018. Zoom recently started using WebRTC’s DataChannels so we have added some new details at the end in the DataChannels section. Zoom has a web client that allows a participant to join meetings without downloading their app. Chris Koehncke was excited to see how this […]