Audio Video Standard (AVS): What Is It & When Do You Use It?
AVS, or Audio Video Standard, is an audio and video technology standard developed by the Audio Video Coding Standard Working Group (AVS-WG) of China.
It provides a unified architecture and implementation platform for the development of audio and video coding algorithms.
The standard is designed to provide reliable and efficient audio and video coding technologies appropriate for both mobile and fixed applications.
This introduction will outline the features of the AVS standard and discuss when it is best to use AVS for audio and video coding.
In this post we'll cover:
Definition of AVS
Audio Video Standard (AVS) is an ITU (International Telecommunication Union) standardized audio and video compression algorithm developed by China Multimedia Mobile Broadcasting (CMMB). The AVS aim is to provide compelling multimedia experiences in an efficient way by utilizing existing technologies.
AVS uses a tree structure along with motion-compensated prediction and transform coding techniques to efficiently encode audio/video streams at a low cost compared to other advanced standards. It supports multiple resolutions up to UHD 4K/8K resolution, with higher coding efficiency than H.265/HEVC, H.264/MPEG-4 AVC and other advanced codecs. With superior quality and performance, AVS has become one of the most widely used video compression technology for multimedia applications.
The main features of AVS include:
• Low bit rate outputs with good picture quality;
• High scalability providing flexibility for different devices;
• Low latency support which enables fast decision making;
• Assured playback performance on various devices using different operating systems;
• Support for 10-bit color depth;
• Maximum of 8192 video macroblocks per frame.
History of AVS
AVS is a video and audio compression standard developed by the Audio Video Coding Standard Workgroup of China, or AVS-WG. It was developed as an international response to industry needs in image/audio coding areas, creating a platform for algorithm competition among top-level international institutes.
The first two versions of AVS were released in 2006 and 2007 respectively, while the third iteration (AVS3) was unveiled in October 2017. This new version takes advantage of considerable advances in video compression technology, including improved bit depth representation, reduced block sizes and increased algorithmic complexity through improved computation algorithms .
Since its release in 2017, AVS3 has seen widespread adoption due to its synchronous encoding/decoding capabilities. In addition, it has been adopted as part of several Virtual Reality/Augmented Reality applications thanks to optimized parallel encoding structures that are ideal for live streaming at low bitrates with minimal latency .
Overall, AVS’s abilities have created an efficient multimedia experience that can be tailored to support a variety of different use cases. It is thus increasingly being applied across a wide range of industries such as virtual reality , augmented reality , broadcast content delivery , video on demand services , over-the-top streaming servers and cloud gaming solutions among others.
Benefits of AVS
Audio Video Standard (AVS) is a digital audio and video encoding standard that allows for higher quality, more efficient compression and transmission of audio and video data over a variety of networks. AVS is used in broadcast, streaming, gaming, and many other multimedia applications. This section will cover all the benefits of using the AVS standard.
Improved Quality
A major benefit of using the AVS standard is improved data compression quality. To achieve this quality, the standard utilizes a higher bitrate and more advanced algorithms than traditional codecs. This means that media encoded with AVS will be of a higher-quality than similar content encoded with other codecs.
The higher bitrate and advanced algorithms also help to reduce video buffering and stuttering. This is due to the greater robustness of the AVS codec when it comes to packet losses and errors on lower-bandwidth networks. Additionally, this increased efficiency can lead to more efficient storage consumption, allowing for better performance when streaming or archiving media files on devices with limited storage capacity.
Beyond this, AVS also offers support for HDR (High Dynamic Range) encoding which means that videos encoded using AVS can utilize HDR technology to provide greater depth, contrast and color accuracy in videos displayed on an HDR-capable device such as a smartphone or tablet computer. This means visually stunning visuals regardless of whether you’re watching HD content at home or streaming your favorite movies on the go.
Cost Savings
One of the advantages to using an Audio Video Standard (AVS) is the potential to save costs, as it provides an efficient way to produce and distribute digital media. AVS resolves the incompatibility between video and audio compression technology, which limits video-related projects from being decoded by audio-oriented devices or vice versa. Consequently, using AVS eliminates the need for content providers to create individual files for each type of target device.
With AVS, a single compressed file format can be created and used across multiple target environments with little or no modifications. This reduces authoring costs since there is no need for multiple versions of the same document across different platforms. This single file can also be repurposed in various types of media including streaming media, interactive DVD production, etc., reducing costs associated with additional conversions.
Moreover, when content distributed via streaming technologies are transcoded and eventually downloaded on user’s devices such as mobile phones or PCs, AVS improves over traditional coding methods by providing higher image quality at lower bit rates while achieving a better compression ratio when compared with standard MPEG-2 technology. Lower bit rates help in delivery speed and are advantageous when distributing content over certain networks like satellite based services which have stringent bandwidth limitations due to expensive downlink capacity.
Compatibility
One of the primary benefits of AVS is the ability to guarantee compatibility between different devices, allowing for the high-quality video and audio files produced to be played on virtually any device. This high level of compatibility makes AVS an excellent choice for professional audio and video production, as well as home use.
AVS also ensures seamless playback across multiple devices with fast bitrate encoding that allows different device types or sizes to make use of high-resolution files without a loss in quality. The high-quality images and audio produced by such models are also resistant to malware or viruses that often accompany content from other sources. AVS includes strong encryptions which ensure any content created will remain secure, preventing piracy or other attacks which might affect user data.
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Use Cases for AVS
Audio Video Standard (AVS) is a digital media transmission protocol developed by a Chinese consortium. It is primarily used for sending digital audio and video streams over a network and is extensively used in digital televisions and other audiovisual equipment. In this section, we will look at various use cases for the audio video standard, along with its advantages and disadvantages.
Broadcasting
The AVS video coding system has many applications in broadcasting, particularly for the transmission of digital satellite TV, cable TV and terrestrial broadcasting. It is often used as the default video coding standard for direct broadcast satellite (DBS) services. It is also popular for digital video broadcast (DVB) and cable television systems, as well as high definition digital subscriber line (HDDSL) services. The AVS standard is used to compress audio and video content prior to transmission, allowing it to easily be sent over limited bandwidth networks such as satellite communication channels or cable TV.
The AVS system allows broadcasters to transmit more information in the same amount of space when compared to other standards such as MPEG-2 or Multimedia Home Platform (MPEG-4). It also offers additional benefits such as reduced encoding complexity, improved compression efficiency and scalability with variable bit rate capability. This makes it an ideal choice for radio and television applications that require efficient data delivery while still delivering a high quality viewing experience on end user devices.
Streaming
Streaming applications can benefit from AVS to ensure consistent delivery of audio and video content, with the highest-quality experience possible. AVS enables content providers to broadcast TV and radio programs live in real-time over the internet in smooth transitions between streams, supporting multiple streaming formats at once.
AVS is used for streaming audio and video formats such as MP3, FLAC, AAC, OGG, H.264/AAC AVC, MPEG-1/2/4/HEVC and other format support necessary for providing a range of multi-lingual and multi-format online media services across different screens.
AVS can be employed to create an enhanced streaming experience with personalized video quality adjustments over a wide range of devices. It supports both network file transmission using HTTP Live Streaming (HLS) or Dynamic Adaptive Streaming (DASH) protocols and broadcast transmission using the MPEG Transport Stream protocol (MPEG TS). Support for DRM technologies like PlayReady, Widevine or Marlin is also included.
In addition, AVS provides features such as support for seamless switching between adaptive bitrates and resolutions; fast start times; improved error recovery capabilities; connection rate optimization; compatibility with multiple adaptive streaming industry standards like HEVC or VP9 encoded files; support for live broadcasting on IPTV networks; compatibility with SDI capture cards; support for multicasting including IPv6 capability; timed metadata conforming to ID3 standards integration information on audio objects.
Video Conferencing
Video conferencing is one of the primary use cases for AVS. Audio and video can be transmitted between faraway locations with near-HD quality. AVS is able to do this due to its built-in error correction codes, which help ensure that only the highest quality audio and video reaches the receiver. This is why AVS has become the standard for video conferencing in many industries today.
AVS is also beneficial when it comes to scalability, as it allows more than two people to join in on a call at once without compromising audio or video quality. The ubiquity of AVS makes syncing up calls between several devices possible and ensures that each participant gets an HD-like experience without lags or static interruptions.
AVS also supports built-in encryption protocol which encrypts all sessions using advanced secure internet protocols (SSL). This means that all data shared between participants remains strictly confidential and cannot be accessed by anyone other than those who have been invited to join in on the call. This added layer of security makes AVS an ideal choice for teams who need to transmit sensitive information during their sessions.
AVS Standards
Audio Video Standard (AVS) is an audio-visual coding standard used in digital audio and video transmission. It is developed and standardized by the Audio Video Coding Standard Working Group of China and was first released in 2006. AVS standards help provide compatibility between standards in video encoding and decoding, as well as improved video quality, security, and bandwidth utilization. This section will discuss the AVS standards in detail and the scenarios in which it is used.
AVS-P
AVS-P (Audio Video Standard Preservation) is one of the latest versions of the AVS standard that has been developed to assist in the long-term preservation of moving images, including television and film. This standard is intended to provide broadcasters and other entities with an easily accessible, secure format for transporting audio/video content.
The AVS-P technical specification is based on the International Standardization Organization’s (ISO) MPEG-2 standard. It provides improved characteristics such as higher image quality due to increased bitrates, integration with existing broadcast standards which enables use in both traditional and digital delivery platforms, improved compression algorithms which reduce bitrates without visible losses in video or audio quality, and it also enables access to multiple program versions. All these features make the AVS-P a great choice when it comes to providing excellent long-term preservation solutions for audio/visual content.
AVS-P technologies guarantee high quality video transmission over long distances and can be used in many broadcasting scenarios where signal distortion is an issue or where users need a secure medium for housing their content. The AVS-P system uses two codecs — video codec H.264/MPEG 4 Part 10 Advanced Video Coding (AVC), commonly referred to as HVC, which supports both HD and 4K resolution; and audio codec Dolby AC3 Plus (EAC3) which supports up to 8 channels. The combination of these two codecs gives AVS-P considerable benefits over legacy analog systems when it comes to preserving high fidelity audio/visual content over time.
AVS-M
AVS-M (Audio Video Standard—Multimedia) is a standard established by the AVS Working Group of China’s National Video and Audio Coding Standard Coordination Group. This standard provides a comprehensive platform for multimedia development and delivery, including image, 3D graphics, animation and sound.
AVS-M focuses on applications such as digital television broadcasting and communication systems to enable the production of high-quality content that meets consumer demands while reducing costs. It includes transmission protocols, data coding requirements, system architecture design principles and more.
The key features of the AVS-M standard include:
– Scalable multimedia video coding that supports video bit rates from 2kbps–20Mbps
– Widely compatible with other standards such as H264/AVC and MPEG4 Part 10/2 for better performance (interoperability)
– Encoding support for four separate media formats: audio, text, images and animation
– 3D graphics support
– On screen display (OSD) features to enable users to adjust settings directly from their device display screens
– JPEG2000 encoding feature that supports higher resolution images
It is widely used in digital broadcast applications in China while also being used in some global markets such as Japan and Europe. Additionally, it has been adopted by some Chinese networking systems including CCTV.
AVS-C
AVS-C is an Audio Video Standard, or AVS, developed by the Audio and Video Coding Standard Working Group (AVS WG) of the China Video Industry Association (CVIA). AVS-C is based on H.264/MPEG-4 AVC, and is designed to enable Chinese digital video broadcasts with superior visual quality while meeting global standards.
AVS-C offers filmmakers several advantages over existing MPEG video coding standards such as MPEG-2 and MPEG-4. It enables multiple video services to be transmitted in one channel bandwidth, allowing for more efficient use of broadcast channels. And because it uses high compression algorithms to reduce the need for bit rate over HDTV technologies like blu-ray, it also significantly helps reduce cost from manufacturers.
AVS-C supports numerous features that are not available in other standards including high frequency bandwidths up to 10MHz making it suitable for HD applications; low latency mode; frame rate up to 120 frames per second; advanced color formats; audio coding formats such as AAC, MP3 and PCM; variable bitrate support for smoother delivery of stream regardless of network conditions; improved efficiency through cross layer optimization of motion information and picture characteristics; low latency video coding techniques; advanced error correction; picture quality tests using reference frames and real robot model evaluations.
The use cases for AVS-C are varied as it can be used in multiple settings including digital broadcasting, internet streaming media content distribution platforms, TVOnline services mobile platforms, educational applications programs on demand (POD), interactive IPTV services, Cable TV systems and others.
Conclusion
The AVS standard is an important one for audio and video professionals to keep in mind when selecting the best way to capture and stream their content. As its popularity continues to increase, knowing when and how to make use of this standard is critical for any consumer, business, or service provider looking to get the most out of their media experience. In this article, we’ve explored the advantages and disadvantages of AVS, as well as its use cases. The conclusion is clear—AVS is an important and powerful standard that can be used to great effect.
Summary of AVS
AVS stands for Audio Video Standard and is a video codec created in China by the Audio Video Coding Standard Workgroup. This standard has been developed over numerous contributions from many Chinese academic universities, research institutions, and Chinese video chip companies. It was launched in August 2005, and since then it has been designed to fit the high-definition digital television broadcasting system in China.
AVS integrates advanced technologies such as Multi-Picture Frame Resource Partitioning (MFRP), Advanced Intra Coding (AIC), Advanced Inter Prediction (AIP), Adaptive Loop Filter (ALF), Deblocking Filter (DF) and 10 bit 4:2:2 colorspace for providing a comprehensive coding capability that is targeted to closely meet the needs of HDTV content delivery networks. It also offers improved rate control capabilities such as distortion optimization, content adaptive bit allocation, context-based macroblock skip mode decision mechanism, among others.
In addition to being used HBBTV services within China, AVS can also offer higher image quality than other international standards when compared with fixed bitrate encoding applications that are widely used in broadcasting environments worldwide today. It provides better performance when dealing with complex motion scenes and results in significantly improved compression efficiency when combined with an entire suite of robust coding tools including new frame prediction modes and transform techniques.
Therefore, AVS is an ideal format to encode multimedia content at HD resolutions like 720p or 1080i/1080p while still keeping bandwidth requirements limited by achieving good compression values without compromising visual quality or other audio standards like Dolby Digital Plus or AAC/HE-AACv1/v2 audio encode formats.
Advantages of AVS
Using AVS offers a number of advantages that make it appealing for a variety of applications. First and foremost, AVS features lossless compression, meaning that the quality of the original video/audio is preserved throughout the entire production process. This makes it ideal for creating professional-grade video/audio on par with what you would expect to see in movie theaters or broadcast television. Additionally, AVS also provides efficient encoding and decoding times, as well as low latency streaming that ensures quick communication between two devices. Furthermore, due to its non-proprietary nature, AVS can be used with products from any number of manufacturers—so compatibility won’t be an issue. Finally, since AVS is based on the H.264 standard (the same used for Blu-Ray discs), any user can rest assured that his or her production will remain at the cutting edge for years to come.
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