Clubhouse online supports replay function; Webobs live streaming tools are going to be popular |w

ClubHouse Online support Replay function

As the hottest audio live broadcast product ClobHouse Still maintain relatively fast iteration ability , Recently supported Replay Ability , The popular point is to support the playback ability of live broadcast .ClobHouse Some innovations have been made on the ability of playback , The room creator can see who is listening to the playback of a room after the live broadcast , You can also let them contact other users who don't listen in real time . Although playback capability has been used a lot , But what I'm curious about is that if it supports playback, what's the difference between previous blogs ？ This problem can be extended to the comparison between live and short videos , The creation cost of live broadcast is very low , The creation cost of short video is high , However, the information density per unit time is significantly lower than that of live video , At present, the consumption time of short video is also significantly longer than that of live video .

ClubHouse How big is the space for live audio broadcasting ？ I simply searched Clubhouse Of Google Trends, The search volume has gradually decreased in the last half of the year , I wish ClubHouse Good luck .

Related reading ：

https://blog.clubhouse.com/clubhouse-replays-room-recording/

WebOBS Live streaming tools are going to be popular ?

OBS It has always been an enterprise live broadcast / The mainstream live streaming tool for personal live broadcast , StreamLab This company is based on OBS Manufacturers developing live broadcast tools are also 19 Logitech was named 8900 A $million cash acquisition . With Web The end-to-end capability is becoming more and more powerful , such as WebGPU, WebCodecs,WebTransport,WebAssembly, The emergence of these technologies makes Web The terminal performs complex audio and video processing , Confluence , Skin care , Portrait segmentation and so on become possible .

Related products ：

StreamYard : https://streamyard.com/ Melon : https://melonapp.com/ Welder : https://www.getwelder.com/streaming-software

Tencent cloud Penguins AI-Codec Ultra low bit rate HD speech codec and decryption

Tencent conference released Penguins Audio codec , We also exchanged industry information with R & D personnel . At present, Microsoft's Satin Audio coding is known as Teams in 1v1 Through landing in the scene ,Google Of SoundStream I haven't seen the specific landing news yet .

I'm glad to see that Tencent is actually at the forefront in this direction .

Excerpt a passage from the text, which is very recognized ：

5G Even in the future, the development of stronger communication technology will bring richer bandwidth resources , But people's pursuit of real-time audio and video experience is also endless . We not only need to hear clearly , You still need to listen really . For real-time full band audio transmission 、 Space audio technology and even sound field reconstruction , High efficiency codec can bring more reliable and effective basic support for these technologies ; And in reality, there will always be weak networks , The resources saved by efficient encoding and decoding can be used for resistance improvement , Ensure the stability of real-time communication . therefore ,Penguins And its future evolution version , It will have very broad application prospects

Related reading ： https://mp.weixin.qq.com/s/eauCoafH7xP5vUkI9rvuUg

Ringcentral： Add... To your meeting AI Ability

Ringcentral Recently updated their conference products , This is the main game AI Ability . These abilities include ：

1, Auto follow capability . When you move, the focus of your capture will follow your face ;

2, Low light compensation . When you have a meeting in a dark environment ,AI The algorithm will automatically compensate the light ;

3, Video Effects . It can add more interesting effects to your picture .

Coincidentally Zoom The automatic translation capability has just been added some time ago ,Google Meet Some time ago, it also increased the ability of automatic light compensation ,Around It also increases the ability of automatic following and intelligent noise reduction . Now that video conferencing is becoming more and more homogeneous , Each product has to start minimally invasive new to increase user stickiness .

Related reading ：https://www.ringcentral.com/us/en/blog/ringcentral-mvp-meeting-ai/ 

WebRTC M96 Upcoming release , It will be abolished Plan B

Plan-B yes Chrome/Chromium Unique implementation ,Safari and Firefox Always support Unified Plan, Chrome stay M72 Has supported Unified Plan. To some extent, if it is redeveloped later WebRTC Not to be considered Plan B The support of , because Unified Plan Your support has been very good .

Plan-B and Unified Plan Each have advantages and disadvantages , When there is only one way of audio and video, there is no difference between the two schemes , In multi-channel audio and video Unified Plan Every audio and video will have a Mline, This provides a lot of flexibility , Different capabilities can be negotiated for each channel of audio and video , For example, we have a camera and a screen to share , You can let the screen share av1 code , And the camera uses h264.

As years with SDP Developers dealing with have to say SDP Sucks,SDP It's really a bad design , It is a standard, but it is also a relatively flexible standard , The implementation of each family may be different , Have to spend a lot of energy on SDP The adaptation of , If you haven't been SDP Your adaptation has plagued you in a sense that you may not fully understand WebRTC. But once standards are established , It's hard for others to shake it , Microsoft once made it ORTC Standard to shield SDP The question of consultation , Finally failed .

Related reading ： https://www.chromestatus.com/roadmap

Unreal Engine Support soon WebRTC adopt WHIP Push flow

Unreal Engine Support... Earlier WebRTC,Unreal Engine be based on WebRTC Developed their Pixel Streaming service , Allow users to run unreal engine applications on cloud servers , adopt WebRTC Send rendered frames and audio streams to browsers and mobile devices . The scene is very much like cloud game or cloud rendering .

There is a developer abroad Murillo ( Open source WebRTC Media server Meddoze The author of ) to Unreal Engine Increased use of WebRTC adopt WHIP Support for . Support WHIP After standard , Can make some right WebRTC Developers who are not familiar with audio and video can also easily use WebRTC Push flow , This will put the cloud game / The development cost of cloud rendering is reduced a lot . Look forward to this PR We can merge as soon as possible .

In addition, the fast live broadcast of Tencent cloud has also supported WHIP Protocol streaming , In the back, you can easily get from Unreal Engine perhaps Unity Push the rendered image to Tencent cloud , And do hundreds of end-to-end ms Delayed viewing within .

About Tencent cloud live broadcast WHIP Flow pushing capacity , I wrote one demo Put it in github On ,

https://github.com/Tencent-RTC/leb-whip-example