AES67 – Developed by the Audio Engineering Society, this Layer 3 protocol is the most common standard for audio over IP.
AIMS – The Alliance for IP Media Solutions (AIMS) is a nonprofit trade alliance that champions the open standards broadcasters and media companies are adopting to transition from legacy SDI systems toward a virtualized, IP-based future. Led by Grass Valley and Imagine, the group is actively promoting the VSF TR03 and TR04 "protocols." Note that "TR" actually stands for Technical Recommendation—these aren’t full-fledged standards but rather input suggestions submitted to the standards community. Learn more – AIMS Alliance
AMWA IS-04 – Advanced Media Workflow Association, Inc (AMWA) specification for registration and discovery, based on the JT-NM RA1 discovery and registration framework.
AMWA IS-05 – Advanced Media Workflow Association, Inc (AMWA) specification for connection management.
AMWA IS-08 – Advanced Media Workflow Association, Inc (AMWA) specification for audio channel mapping.
AVB – Audio Video Bridging, also known as IEEE 802.1BA, 802.1Qat, 802.1Qav, and 802.1AS. This system supports timing, bandwidth reservation, and queuing—but it requires specialized AVB-aware switches.
DANTE – (Digital Audio Network Through Ethernet) was developed by the Australian company Audinate. It is being proposed as an Audio over IP Standard, but it differs from AES67 and SMPTE ST302.
Datagram – A self-contained, independent entity of data carrying sufficient information to be routed from the source to the destination computer without relying on previous exchanges between the source and destination computers and the transporting network.
IETF – The Internet Engineering Task Force develops and promotes voluntary Internet standards. Now that "professional" video and audio are being transmitted over the same networks as internet traffic—whether Ethernet or IP—they are contributing recommendations, standards, and protocols. Their mechanism for technical suggestions is formalized under RFCs—Requests for Comments. Occasionally, the IETF adopts certain RFCs as official Internet Standards.
JT-NM (Joint Task Force on Networked Media) – This was created by the EBU, SMPTE, and VSF to support the transition to IP.
JPEG 2K – A standard for compressing sequences of JPEG 2000 images for motion.
JSON-RPC – A remote procedure call protocol that enables notifications and allows multiple calls to be sent to the server, which may be answered in an out-of-order manner.
LLVC (Low Latency Video Converter) – Developed by Sony, this technology is designed to support the video compression needed for 4K 60p transmission over a 10 Gbps Ethernet connection.
NDI (Network Device Interface) – This system was developed by NewTek to offer a low-bandwidth alternative. NDI employs a temporal codec, rather than a spatial one (I-Frame only), like other solutions, to enhance channel density. Learn More – NewTek NDI
NMI (Networked Media Interface) – This system was developed by Sony as part of their IP-Live suite, which includes the Low Latency Video Codec (LLVC), the NMI packetizer with frame-aligned Forward Error Correction (FEC), and the Network Device Control Protocol (NDCP) for registration, discovery, and frame-accurate switching via off-the-shelf (COTS) switches. All three components have been submitted to SMPTE and released as SMPTE RDD 34, RDD40, and RDD38, alongside Sony’s proprietary SMPTE 2059 Precision Time Protocol (PTP) system. It supports up to 6:1 compression while maintaining visually lossless quality. Learn More – Sony NMI
NMOS (Networked Media Open Specification) – The use of a logical data model to add identity, relationships, and time-based information to content and broadcast equipment.
PCR (Program Clock Reference) – Overall clock reference transmitted in the transport stream for PTS synchronization.
PTS (Precision Timestamp) – Timestamped metadata in an MPEG TS for synchronization purposes in audio and video streams.
RDD (Registered Disclosure Documents) – Documents within the scope of interest of SMPTE, submitted by any entity wishing to make a disclosure available to the public and to utilize the Society’s publication and distribution mechanisms for this purpose. These may include publicly relevant documents of general industry interest that are not Engineering Documents.
RFC 3190 – Published by the IETF, this is the packetization scheme for encapsulating nonlinear and linear audio data streams using the Real-time Transport Protocol (RTP)
RFC 3550 – This is the IETF protocol for real-time transport (RTP) in end-to-end transport functions for live video, audio, and metadata over a network.
RFC 4175 – This is the IETF protocol for encapsulating SDI into an IP Stream for transmission. RFC4175 is solely the encapsulation technology, not the transport protocol itself. VSF TR-03 recommends using RFC4175 to carry video payloads.
RFC 4566 – Published by the IETF, the Session Description Protocol (SDP) is a format for describing streaming media initialization parameters.
RTSP – Real Time Streaming Protocol falls under Internet Streaming and is being adopted for real-time streaming over networks.
SMPTE 2059 – These are the network timing and synchronizing standards that enable "Network Genlock," based on the IEEE 1588 Precision Time Protocol (PTP) standard.
SMPTE 2110 – This is the SMPTE designation for the industry standards and specifications that enable the transport of audio and video over IP networks with full interoperability.
2110-10: Timing and Definitions
2110-20: Uncompressed active video
2110-30: Uncompressed PCM audio
2110-40: Ancillary data
2110-50: Embedded essence
SMPTE ST 2038 – Transport of auxiliary data packets in an MPEG-2 Transport Stream.
SMPTE ST 302 – This audio standard specifies how to carry AES3 audio within an MPEG-2 Transport Stream.
SVIP – Studio Video over IP
VC2 – Visually lossless compression/decompression developed by Barco Silex, defined under SMPTE2042
VSF (Video Services Forum) – VSF is not a standards body; instead, it develops technical recommendations that serve as the foundation for future standards. The group has created two technical references, TR03 and TR04, which mark the starting point for SMPTE 2110 development. Learn More – Video Services Forum