Introduction to AES67. Patrick Killianey Network Applications Engineer
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1 Introduction to AES67 Patrick Killianey Network Applications Engineer
2 Dante WheatNet-IP Ravenna Q-LAN Livewire+
3
4 ANLG
5 AES Standards Board The Original Goal: Common Interchange Format Another Network
6 A Word Processing Analogy Microsoft Word Corel WordPerfect Google Documents Apache OpenOffice
7 A Word Processing Analogy Microsoft Word.doc Microsoft Word
8 A Word Processing Analogy Microsoft Word.txt Google Documents Apache OpenOffice Corel WordPerfect
9 AES Standards Board New Highest Common Format AES67 MADI AES/EBU (aka AES3) Analog
10 ALC NetworX GmbH Archwave Technologies, B.V. ARG Electrodesign Attero Tech, LLC Audio-Technica AVA Networks, LLC British Broadcasting Corporation (BBC) Bosch Security Systems, Inc. Calrec Audio Cymatic Audio Digigram DirectOut GmbH Dongguan 3G Audio Technology Co., Ltd. Focusrite Audio Engineering Genelec Harman Professional Lawo Ag Merging Technologies NTP Technology Ningbo Soundking Electronics QSC, LLC Riedel Communications, GmbH & Co. KG Shure Incorporated Solid State Logic Suzhou Fortune Technology Co. SVSi Swedish Radio AB The Telos Alliance TOA Corporation Walt Disney Imagineering Ward-Beck Systems Wheatstone Corporation Yamaha
11 What s in a Networked Audio solution? Device Control Control & Monitoring Solution A Connection Management Transport Timing Discovery Connection Management Session Description Transport Quality of Service Encoding & Streaming Synchronization Media Clock
12 The Road to Incompatibility Control & Monitoring Dante Proprietary (Dante Controller) Ravenna HTTP, Ember+ QLAN TCP, HTTP Livewire+ HTTP, Proprietary Discovery Bonjour, SAP Bonjour Proprietary Proprietary Connection Management Proprietary, IMGP RTSP, SIP, IGMP Proprietary Proprietary, HTTP, IGMP Session Description Proprietary SDP Proprietary Channel # Transport Proprietary, IPv4 RTP, IPv4 RTP, IPv4 RTP, IPv4 Quality of Service DiffServ DiffServ DiffServ DiffServ/802.1pq Encoding & Streaming L16-32, 16 ch/flow L16-32, 64 cha/str 32B-FP, 16 ch/str L24, st, surr Synchronization PTP PTP PTP Proprietary Media Clock 44.1kHz - 192kHz 44.1kHz 384kHz 48kHz 48kHz
13 Word Clock: PTPv2 (IEEE ) Connection Management: SDP (RFC 7273) Audio Transport: IGMP v2, RTP (RFC 3550, 3551)
14 Word Clock: PTPv2 (IEEE )? Connection Management: SDP (RFC 7273) Audio Transport: IGMP v2, RTP (RFC 3550, 3551)
15 Discovery (SAP)
16 What Does AES67 Say About Discovery? (4) Discovery Methods are Acknowledged; SAP is one of them. (0) Discovery Methods are Explicitly Required. Discovery
17 ? RAV2SAP.exe
18 RAV2SAP Utility Discovery: Bonjour Translates between Bonjour and SAP discovery; allows manual creation of announcements. Dante Controller RAV2SAP Manual Entry Audio Flow: Audio does not flow through the utility audio passes directly between audio endpoints. AES67 Enabled Device RAV2SAP
19 The Native Network Solution Benefits A Single Utility and Design Viewpoint No need to learn design conventions for each platform. Lower Latency Performance AES67 default is 3msec. Dante defaults to 1msec, safely achieves 0.25msec or less. Advanced Control & Diagnostics Network Health Utilities, Remote Control, Security Options, etc.
20 The Elements of Network Latency Packet Time Transmit Network Delivery Reassembly 0msec 1msec 2msec 3msec
21 The Native Network Solution Benefits A/D Process Network Transmission Mixer/DSP $ $ Network Transmission 8.6msec D/A Process, Wireless, etc. A/D Process Network Transmission Mixer/DSP Network Transmission D/A Process, Wireless, etc. $ 3.1msec 0msec 1msec 2msec 3msec 4msec 5msec 6msec 7msec 8msec 9msec
22 The Elements of Network Latency Packet Time Network Delivery Packet Time Network ivdelivery Possible Additional Network ivdelivery Packet Time Network Delivery Packet Time Network Delivery 0msec 1msec 2msec 3msec Packet Time: to 4msec Network Latency: 2x to 17x Packet Time, 0.5msec to 20msec
23 The Native Network Solution Benefits A Single Utility and Design Viewpoint No need to learn design conventions for each platform. Lower Latency Performance AES67 default is 3msec, Dante safely achieve 0.25msec or less. Advanced Control & Diagnostics Network Health Utilities, Remote Control, Security Options, etc.
24 A Strong Case for AES67
25 A Strong Case for AES67 TR-03 TR-04 SMPTE SMPTE 2110
26 A Strong Case for SMPTE 2110 SMPTE 2110
27 A Strong Case for SMPTE 2110 SMPTE 2110 TR-03 TR-04 SMPTE SMPTE 2110
28 A Strong Case for SMPTE 2110
29 Word Clock: PTPv2 (IEEE ) Discovery*: SAP NMOS? RAV2SAP Bonjour Manual Entry Connection Management: SDP (RFC 7273) Audio Transport: IGMP v2, RTP (RFC 3550, 3551)
30 Introduction to AES67 Patrick Killianey Network Applications Engineer
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