Monitoring Audio Streams in the IP Workflow

Presenters : Aki Mäkivirta - Genelec

Year : 2018

dlp_document_download : Monitoring audio streams in the IP network-based workflow Aki Mäkivirta AES145 New York, October 17-20, 2018 Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 2 Why Audio Networking? Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 3 Higher quality signal Analogue Continuous voltage describes the audio signal Digital PCM STREAM Sample values describes the audio signal Networked Packetized Audio over IP Sample values in a sequence of packets describe the audio signal Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 4 Networking simplifies systems • Audio over IP is the modern alternative to large multi-channel digital audio interconnections. • Protocols such as RAVENNA, Dante and AVB are increasingly being used. • IP connection directly on devices simplifies system design. Audio inside an IP Packet Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 5 Increasing flexibility • Effectively unlimited number of audio channels – high channel count into one (low cost) cable • Make signal run long distances • Minimise end-to-end delay: latency 1ms or less • Co-existing protocols: control + device monitoring + system management + other data on the same cable Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Increasing bandwidth, standard CAT cabling CAT7 – 10 Gbps CAT6 – 1 Gbps CAT5E – 350 Mbps CAT5e – 150 Mbps CAT 5 – 100 Mbps Category cabling is designed for high signal integrity and is used for structured cabling for computer and voice networks. It’s everywhere! Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater We have redundancy… Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater …with Spanning Tree With the spanning tree protocol (STP), switched networks can connect switches using multiple paths for redundancy without causing a network loop. Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 9 Networking Standards Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 10 "The Alliance for IP Media Solutions (AIMS), is a non-profit trade alliance that promotes the open standards that broadcast and media companies use to move from legacy SDI systems to a virtualized, IP-based future" https://www.aimsalliance.org/ Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater AES67 – AES Standard for Interoperability in High- performance Audio-over-IP Streaming IP X X X Q-LAN Livewire RAVENNA WheatNet Dante X AES67 Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater AES67 - RAVENNA Encoding 48kHzEncoding 48kHz 1-8 Audio channels1-8 Audio channels 48 Samples per packet48 Samples per packet Media Format L16/L24 PCMMedia Format L16/L24 PCM QoS three classesQoS three classes AES67AES67 + 44.1, 96, 192, 384kHz…+ 44.1, 96, 192, 384kHz… + 64, 128…+ 64, 128… + 1, 6, 12, 64…+ 1, 6, 12, 64… + AES/EBU, DSD/DXD…+ AES/EBU, DSD/DXD… + classes adjustable+ classes adjustable + Redundancy+ Redundancy + Discovery+ Discovery More Feature s More Options Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Some RAVENNA Partners Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 14 Monitoring Networked Audio Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Connectivity, good old days 15 Batch bay, one-to-one physical links between devices in studio Expensive, custom cabling requiring experts to build Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Connectivity – IP Networking Simplicity • Physical cable layout uses standard CAT cabling. This makes installations easy and low-cost. • Physical cable layout does not limit routing to devices, such as monitor loudspeakers. • Routing is defined on logical (software) level. • Physical cabling does not change when signal routings change. Fast build-up, full flexibility Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Genelec 8430A IP • Direct monitoring of audio-over-IP streams • Ravenna and AES67 compatible up to 96 kHz and 8 channel streams • Smart Active Monitor (SAM™) compensates for room acoustics • 1 x XLR analog input, 1 x RJ45 (etherCON) for AES67, 2 x RJ45 GLM control network • 45 Hz – 23 kHz (-6 dB), ± 1.5 dB (58 Hz - 20 kHz) • HWD 299 x 189 x 178 mm, (12 x 7 x 7 in), with Iso-Pod™ Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Device-to-device IP networking 18 • Maximum flexibility: • Keep the signal on the IP network as long as possible • Every monitor is a separate destination, instant reconfiguration of source • Accurate synchronised playback across multiple devices • Reduces costs – network is the router •SAM TM and GLM TM enable every monitor to reproduce acoustically accurately the original source Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 19 Flexibility of Monitoring • Audio-over-IP enables the monitor to tap to any audio stream and channel in the stream Assignable console or workstation monitoring Flexible continuity monitoring Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 20 High Channel Count • Audio-over-IP does not limit the channel count, format mix, presentation resolution, or sample rate (bandwidth). • No limit to the channel count. Audio-over-IP can support all current and future immersive formats, for example. Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 21 Broadcast Case Examples Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater BBC IP Studio Project 22 https://www.bbc.co.uk/rd/projects/ip-studio BBC IP Studio Project (2017)BBC IP Studio Project (2017) Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 23 2017 https://sverigesradio.se/sida/gruppsida.aspx?programid=4282&grupp=24249 Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 24 2017 https://sverigesradio.se/sida/gruppsida.aspx?programid=4282&grupp=24249 Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Broadcast applications 2017 https://sverigesradio.se/sida/gruppsida.aspx?programid=4282&grupp=24249 Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Virtual Radio Studio (2017) 26 Axia Audio IP-Tablet Virtual Radio software, designed by IP-Studio https://www.telosalliance.com/Axia/ip-tablet-virtual-radio-software Genelec 8430A Genelec 8430A Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Jutel RadioMan Access (2018) 27 RadioMan® ACCESS On-Air tablet interface https://jutel.fi/products/jutel-radioman-access/ Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Hogeschool, Utrecht 28 Hogeschool, Utrecht Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 29 Hogeschool, Utrecht Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 30 CCTV EFP system in Djakarta, control room 1CCTV EFP system in Djakarta, control room 1 Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 31 CCTV EFP system in Djakarta, control room 2CCTV EFP system in Djakarta, control room 2 Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 32 CCTV EFP system in Djakarta, control room 3CCTV EFP system in Djakarta, control room 3 Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 33 AV Install Case Examples Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 34 Maaninka Church, FinlandMaaninka Church, Finland Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater 35 Restaurant Nallikari, FinlandRestaurant Nallikari, Finland http://www.n4s.fi/2015magazine/article13/ Monitoring IP Networked Audio – AES 145th Convention New York, AoIP Pavilion Theater Summary • standard Ethernet hardware • running on standard IP networks keeps operation simple and cost down • AES67 and RAVENNA for audio-over-IP • open system designs and standard protocols, part of ST2110 • uncompromised quality • direct monitoring of AES67 compliant streams • simplifies system design, build, and operation • keeps the system cost and complexity down • has great flexibility: direct access to any channel, in any stream, by only logical configuration 36