RAV2SAP: a Value-added AES67 Micro Service

Presenters : Anthony Kuzub - Ward-Beck

Year : 2018

dlp_document_download : Anthony P. Kuzub IP Audio Product Manager Anthony@Ward-Beck.Systems www.Ward-Beck.Systems TorontoAES.org Vice-Chair https://Rav2Sap.AES67.audio 2 SUMMING .audio AMPLIFY .audio FILTERING .audio XLR .audio BUSSING .audio MUTING .audio MATRIXING .audio PREAMPS .audio VUMETERS .audio GROUNDING .audio DB25 .audio PATCHING .audio Audio Domains BNC .audio Control & Monitoring Discovery Connection Management Session Description Transport Quality of Service Encoding & Streaming Synchronization Media Clock NETWORKING .audio Device Control Connection Management Transport Timing ROUTING .audio MULTICASTING .audio SWITCHING .audio IGMP .audio AES70 . audio CLOCKING .audio MATRIXING .audio PATCHING .audio AES67 .audio CLOCKING .audio ROUTING .audio MULTICASTING .audio RJ45 .audio 1 - Physical 3 - Network 2 - Data Link 4 - Transport 5 - Session 6 - Presentation 7 - Application TX DATA RX DATA AES67 .audio IGMP .audio 2110-30.AES67 .audio SWITCHING .audio BUSSING .audio MATRIXING .audio PATCHING .audio AES67 .audio - Click to view Presentation 5 AES67-2013 Standard for audio applications of networks: High-performance streaming audio over-IP References Audio Engineering Society, New York, NY., US. AES11 - AES recommended practice for digital audio engineering Synchronization of digital audio equipment in studio operations Institute of Electrical and Electronics Engineers (IEEE) IEEE 1588-2008 - IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems, July 2008 Internet Engineering Task Force RFC 768 – User Datagram Protocol" RFC 791 – Internet Protocol RFC 1112 – Host Extensions for IP Multicasting RFC 2236 - Internet Group Management Protocol, Version 2 RFC 2474 – Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers RFC 2616 - Hypertext Transfer Protocol - HTTP/1.1 RFC 2974 – Session Announcement Protocol RFC 3190 – RTP Payload Format for 12-bit DAT Audio and 20- and 24-bit Linear Sampled Audio RFC 3261 - SIP: Session Initiation Protocol RFC 3264 - An Offer/Answer Model with the Session Description Protocol (SDP) RFC 3376 - Internet Group Management Protocol, Version 3 RFC 3550 – RTP: A Transport Protocol for Real-Time Applications RFC 3551 - RTP Profile for Audio and Video Conferences with Minimal Control RFC 4566 – Session Description Protocol RFC 5939 – Session Description Protocol (SDP) Capability Negotiation RFC 7273 – RTP Clock Source Signalling AES67-2018 Standard for audio applications of networks: High-performance streaming a udio-over-IP interoperability Production Sources Playback Live Music Transmission Reception Record Guests Backup OB Ambience Camera Mic 7 Host RF Co-Host RF VO 8 9 SDP: Soup Description Protocol 10 SDP: Soup Description Protocol Name: Label Purpose: Type Expiry: Time active Contents: Elements Instructions: Preparation details Contact information: Responsible 11 SDP: Soup Description Protocol Name: Device Purpose: Production Pool Expiry: Time active Contents: Media Format Instructions: Address and Port Contact information: Optional... 12 CRTL A CRTL B CRTL C CRTL D SET (n) SET (n) SET (n) SET (n) SET (n) SET (n) SET (n) SET (n) SET (n) SET (n) SET (n) SET (n) TelevisionSet.AES67.AUDIO AES from RF Mics + to IFB AES from RF Mics + to IFB AES from RF Mics + to IFB AES from RF Mics + to IFB POOLS.AES67.audio POOLS.AES67.AUDIO OB Locations Guests Host Co-Host Production Sources Transmission + Reception POOLS.AES67.audio OB Locations Guests Host Co-Host Production Sources Transmission + Reception POOLS.AES67.audio OB Locations Guests Host Co-Host Production Sources Transmission + Reception POOLS.AES67.audio OB Locations Guests Host Co-Host Production Sources Transmission + Reception 15 POSITION ID TALENT ID SHOW ID SDP 16 TALENT ID PHOTO MIC ID LOCATION ID CH ID PRESET ID MAC ID TALENT POOL / SOURCE POOL SOURCE ID CH ID PRESET ID 17 API: Presentations MIXER Production Monitor AIR Record POSITION ID TALENT ID SHOW ID SDP RAV 2 SAP Time description (mandatory) t= (time the session is active) r=* (zero or more repeat times) Media description (if present) m= (media name and transport address) i=* (media title or information field) c=* (connection information — optional if included at session level) b=* (zero or more bandwidth information lines) k=* (encryption key) a=* (zero or more media attribute lines — overriding the Session attribute lines) Session Description Protocol v= (protocol version number, currently only 0) o= (originator and session identifier : username, id, version number, network address) s= (session name : mandatory with at least one UTF-8-encoded character) i=* (session title or short information) u=* (URI of description) e=* (zero or more email address with optional name of contacts) p=* (zero or more phone number with optional name of contacts) c=* (connection information—not required if included in all media) b=* (zero or more bandwidth information lines) One or more Time descriptions ("t=" and "r=" lines) z=* (time zone adjustments) k=* (encryption key) a=* (zero or more session attribute lines) Zero or more Media descriptions (each one starting by an "m=" line) Session Description Protocol DISCOVERY.AES67.audio ● WWW ● EMAIL ● DATA BASE ○ Private ○ Public ● SIP ● SAP (DC) ● BONJOUR (AC) ● AES70 ● NMOS ● SNMP ● KLV within stream ● FAST METADATA ● Email: SDP ● WWW Distribution <DEVICE>/../SDP ● MIME (Multipurpose Internet Mail Extensions) content type "application/sdp" Email and WWW Announcements v=0 v= (protocol version number, currently only 0) o=- 2 0 IN IP4 192.168.110.178 (originator and session identifier : username, id, version number, network address) s=WardBeck 32ME s= (session name : mandatory with at least one UTF-8-encoded character) t=0 0 t= (time the session is active) a=clock-domain:PTPv2 0 a=* (attribute Clock version and domain) m=audio 50000 RTP/AVP 98 m= (media name and transport port and IP address / RTP profile 98) c=IN IP4 239. 30.178.1/100 c=* (connection information/TTL) a=rtpmap:98 L24/48000/8 a=* (attribute RTP profile / Bit Rate / Sample Rate / Channels) a=framecount: 48 a =* (attribute ) a=sync-time: 0 a=* (attribute required by ST2110-30) a=ptime:1 a=* (attribute: Packet Time) a=ts-refclk:ptp=IEEE1588-2008:EC-46-70-FF-FE-00-8F-C8:0 a=* (attribute) a=mediaclk:direct=0 a=* (attribute) Session Description Protocol 23 a=OCA:1000:1.1.3:OcaBlock:0:1:BLK_Library=Library a=OCA:1001::OcaLibrary:0:1e6:Application= 222 a=OCA:1002::OcaLibrary:0:1e6:Preset= 57575 a=OCA:1003::OcaLibrary:0:1e6:Microphone=23452345 a=OCA:10000:1.1.3:OcaBlock:0:5:preAMP 1=Kick Drum a=OCA:10001:1.1.1.4:OcaSwitch:0:1:Phantom=1 a=OCA:10002:1.1.1.4:OcaSwitch:0:1:Phase_Invert=0 a=OCA:10003:1.1.1.4:OcaSwitch:0:1:Input(MIC/LINE)=0 a=OCA:10005:1.1.1.5:OcaGain:0:63:Pre Amp Gain=45 a=OCA:10100:1.1.3:OcaBlock:0:3:DSP Input 1=2 a=OCA:10101:1.1.1.4:OcaSwitch:0:1:HPF Enable=1 a=OCA:1000=Library a=OCA:1001= 222 a=OCA:1002=57575 a=OCA:1003= 23452345 AES70 - Extended SDP Session (information) announced ● Session information broadcasted to all devices on a well-known multicast address. 224.2.127.254 ● Devices Listen to globally scoped multicast sessions ● Devices receive periodic information on available sessions. ● Devices receive an updated "business card" from any participating device from time to time. SAP session announcement protocol ● Bonjour zero-configuration networking techniques by Apple - freeware. ● advertise/discover devices such as printers on a local network. ● Simple networks, wasn’t really designed for large ones. ● Multicast DNS (mDNS) described in an RFC 6762 and DNS service discovery (DNS-SD) described in an RFC 6763 BONJOUR 26 27 RAV 2 SAP 28 RAV 2 SAP 29 MANUAL SDP RAV 2 SAP 30 31 32 MANUAL SDP SAVED SDP RAV 2 SAP 33 MANUAL SDP SAVED SDP RAV 2 SAP 34 RAV 2 SAP 35 https://www.ravenna-network.com/resources/ 36 Anthony P. Kuzub IP Audio Product Manager Anthony@Ward-Beck.Systems www.Ward-Beck.Systems TorontoAES.org Vice-Chair Thank You