Weekly, review the dry goods and news contributions in the audio and video technology field: [email protected].
Content recommendation
Real-time synchronization technology practice of interactive collaborative whiteboard and audio and video
This article organizes the online sharing by Chen Xiaocong, the technical leader of the interactive whiteboard technology of Zizhi Technology, on LiveVideoStack. The content mainly centers on the synchronization of the whiteboard and audio and video and the multi-terminal real-time interaction of the whiteboard. The in-depth analysis is the technical exploration and practice of the interactive whiteboard. .
https://mp.weixin.qq.com/s/jV12R9RfyDXeEPkWys1NJw
Architecture
What is the future of group video streaming
As new apps regularly pop up information with new features, the best thing we can do is to summarize what we have and use them to build the required list, such as better TV compatibility and fewer Technical troubleshooting.
https://mashable.com/article/future-group-streaming/
transporting network
360° live broadcast service
This article comes from a roundtable discussion at MediaKind, hosted by Chris Pfaff, with participants including Christopher Wilson, Rob Koenen, and Jonathan Newth. The theme is 360° live broadcast service.
https://mp.weixin.qq.com/s/_LnCMwdkL7YPfKUsivuE1w
Modern eSports Broadcasting Crash
This speech comes from the royal television society. The speaker is steven jalicy, head of streaming media at ESL game company. The speech mainly introduces the difference between esports e-sports broadcasting and traditional sports broadcasting.
https://mp.weixin.qq.com/s/gvdJfkwiCrTJKAa_edQRrQ
MediaCodec, x264, faac realize audio and video encoding and push streaming through rtmp protocol
In this article, we will implement rtmp streaming on the Android side together.
https://mp.weixin.qq.com/s/wv5fwQt27jKx4J1BSK8-jw
Codec
Six comparisons between VP9 and H.265
From the practical point of view of video codecs.
https://www.red5pro.com/blog/6-points-of-comparison-for-vp9-or-h265/
Continuous innovation is a competitive strategy: why 870 million monthly users in Asia rely on HEVC and AV1 codec standards
This article focuses on the innovative capabilities of Asian streaming media.
https://www.streamingmediablog.com/2020/09/hevc-avi-innovation.html
How to add custom Codec encoder to FFmpeg
This article describes how to add a codec in ffmpeg, taking H264 Encoder as an example.
https://mp.weixin.qq.com/s/WPq-SPmWzFoEl8cr1vWnCQ
New encoder prospects: VVC, EVC, HEVC, LCEVC, AVC, etc.
This article is from the SMPTE Technology Webcast Series. The speakers are Sean T. McCarthy and Walt Husak from Dolby laboratories, Inc. The topic is the prospect of new video codecs: VVC, EVC, HEVC, LC-EVC, AVC, etc.
https://mp.weixin.qq.com/s/CTt3sxgdoYYzQnSilPRzSA
Encoding performance of the new generation of Codec
There is more competition between codecs than ever before. Many existing standards are still used in different places, and new codecs are constantly emerging. We cannot simply compare them with "A is better than B" because the actual situation is much more complicated and many factors need to be considered.
https://mp.weixin.qq.com/s/h7zOjV2vf-hLC5kQ6aIJzw
5 reasons why HEVC streaming media servers are overhyped
This article will focus on why AVC (h.264) is a more effective choice for low-latency real-time streaming. HEVC (h.265) streaming server solution.
https://mp.weixin.qq.com/s/1EBplFMA-kKYgwJxE877JA
Audio and video technology
Hard-core house viewing tool-the realization of the Web panorama
During the epidemic period, the real estate rental and sales industry was undoubtedly a huge impact. Due to the restriction of population movement, the demand has been drastically reduced, and the inability to see houses on site has compounded the crisis. But when there is danger, it is organic, but it accidentally promotes the promotion of a technology-VR viewing. As a subset of WebVR, Web panorama is a downgrade choice for most WebVR requirements, such as street view maps. This article will take you to implement a simple Web panorama.
https://mp.weixin.qq.com/s/MG2d0DAM_tYx78Tt-j0rvA
14 main functions of live events
Let's take a look at some of the key features that should be considered when choosing a platform for building live shows.
https://www.red5pro.com/blog/14-key-features-for-live-event-broadcasting/
WebRTC case for professional streaming
A good list of use cases analyzed from a flow perspective.
https://www.wowza.com/blog/webrtc-use-cases-for-professional-streaming
Vonage Video API version 2.18: new features and usage
The Vonage Video API team recently released a new version of Vonage Video Client SDK-v2.18 (previously known as TokBox OpenTok). This article outlines the new features and how to use them.
https://www.nexmo.com/blog/2020/09/03/opentok-version-2-18-whats-new-and-how-you-can-use-it
Interpretation of iOS audio capture technology: How to achieve the sound effect of male and female voice change?
The solution used in Kingsoft Cloud Live SDK is based on AudioUnit provided by iOS.
https://mp.weixin.qq.com/s/-mOlYTueIT4tLJGgWnam7g
PCM audio data format and coding analysis
PCM (Pulse Code Modulation) audio data is a raw stream of uncompressed audio sample data, which is a standard digital audio data converted from an analog signal through sampling, quantization, and encoding.
https://mp.weixin.qq.com/s/WsLHUp4JJFeegmSm2Q1IBQ
AI intelligence
Damedane at Station B: The essence is to change your face, you can learn it in five minutes
AI face-changing technologies are emerging one after another, but one generation is stronger than one generation. Recently, an AI face-changing model first order motion model published in NeurIPs 2019 became popular, and its expression migration effect is better than other methods in the same field. Recently, this technology has caused a new trend in station B...
https://mp.weixin.qq.com/s/dNWNUJpz8fkwx-8CKANzkA
Breaking the traditional noise reduction algorithm: AliDenoise self-developed by Amoy
In recent years, e-commerce live broadcasts have become more and more popular. At the same time, mobile live broadcasts have become more and more popular, and the live broadcast scenes have become more and more diverse. They are no longer limited to traditional live broadcast rooms. Open and noisy outdoors, noisy shopping malls and even markets can be used. Become a live broadcast base for the anchor. The two most direct factors that affect the final look and feel of the live broadcast are the picture and the sound. The complexity of the scene poses a greater challenge to the traditional real-time audio signal processing algorithm. One of the most intuitive phenomena is that the scene becomes noisy and the sound sounds Not clean, this is the problem that the noise reduction algorithm in the audio 3A algorithm needs to deal with.
https://zhuanlan.zhihu.com/p/248085857
image
HDR Imaging - Image Composition
This article introduces the generation process of HDR image, which is generally called HDR image fusion in academia, HDR composition in industry, WDR frame stitching and so on.
https://mp.weixin.qq.com/s/5icLxor0IPYCCcnYfzgcsQ
Resource recommendation
KEYYO, a subsidiary of Bouygues Telecom Entreprises, acquired the orchestrator of the video assistance solution Apizee
TIOBE September programming language rankings released, C++ has the fastest growth rate