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IP-AUDIO NETWORKS IN THE REAL WORLD: How MPR, Univision, and The University of Indianapolis are Using IP-Audio to Solve Problems ABSTRACT • Most broadcasters agree: IP-based audio systems represent the future • Many people don’t realize systems using Internet Protocol addressing with Switched Ethernet to transport audio already exist ABSTRACT • Today, we’ll explore the challenges broadcasters face, and… • Learn how prominent broadcasters have used IP-Audio to meet these challenges THE KING IS DEAD, LONG LIVE THE KING • When tape carts came along in 1959, transcriptions became obsolete • In 1990, carts were still king. But… THE KING IS DEAD, LONG LIVE THE KING • Experimentation using IBM PCs with digital audio cards began. • No one thought this could possibly work! THE KING IS DEAD, LONG LIVE THE KING • 1991: “Cart Machine” for the PC is introduced – gets over 2,000 Compuserve downloads in 90 days • By 1996, cart machines had been replaced by PCs. THE KING IS DEAD, LONG LIVE THE KING • Today, IP-Audio is poised to make traditional audio distribution infrastructure as obsolete as the cart machine • These systems employ the same IP addressing technology powering business data networks • IP-Audio eliminates the discretewiring model used since the dawn of radio THE FUTURE IS NOW Why are IP-Audio Networks considered to be the future of the broadcast plant? • IP Audio networks enable broadcasters to cut costs by utilizing a common transport mechanism for audio, messaging, and other data traffic THE FUTURE IS NOW Why are IP-Audio Networks considered to be the future of the broadcast plant? • IP-Audio networks provide broadcasters the flexibility to grow and change that traditional systems lack THE FUTURE IS NOW Why are IP-Audio Networks considered to be the future of the broadcast plant? • Since IP-Audio networks are standards-based, even smaller stations can afford to deploy them THE FUTURE IS NOW Real-time IP-Audio in the IT world is already commonplace, as seen in the accelerating migration from traditional telephone services to Voice-over-IP (VoIP) technology THE FUTURE IS NOW • Sales of VoIP-based PBX systems outstripped traditional TDM systems for the first time in 2005 • Estimates indicate that by 2008, VoIP will account for over 90% of PBX sales while traditional phone systems decline to 8% THE FUTURE IS NOW VoIP Access Lines in the U.S. 1999 0.05 2000 0.3 2001 0.8 2002 1.8 2003 3.8 2004 6.5 2005 9.9 2006* 14 2007* 19.2 2008* 26 0 5 10 15 20 Millions of Lines * Projections 25 30 THE FUTURE IS NOW In September 2005, Cisco, reporting the sale of its 6-millionth IP phone, said that VoIP is displacing up to 8,000 traditional circuit-based telephones every business day THE FUTURE IS NOW NPR’s Content Depot® program distribution system employs IPover-satellite technology • NPR affiliates can browse a list of programs, arrange feeds, and download metadata including promos, audio samples, and rights information THE FUTURE IS NOW The broadcasting industry is on the verge of an IP-fueled revolution in distribution and infrastructure design How IP-Audio works: Audio sources connect to “audio nodes” How IP-Audio works: Nodes convert audio to uncompressed, 24-bit/48 kHz digital audio, then translate it to packet data How IP-Audio works: Each audio node input/output is assigned an IP address for identification and routing purposes How IP-Audio works: Logic ports on each device are connected to GPIO nodes, which convert on/off, tally and other commands to packet data How IP-Audio works: Each node makes its audio and control data available to the network How IP-Audio works: Studio A Studio B Studio C Each studio’s local Ethernet switch is connected to the other rooms via core switches or daisy-chain HOW IP-AUDIO WORKS By integrating IP-Audio interfaces into equipment, installations are greatly simplified • Compared to traditional multi-line broadcast phone systems, an IP-Audio based system requires only a single Ethernet connection – simplifying installation HOW IP-AUDIO WORKS By integrating IP-Audio interfaces into equipment, installations are greatly simplified • With an IP-Audio based computer delivery system, audio travels to the network via the computer’s NIC card – without soundcards, multiple audio lines, or D/A/D conversion HOW IP-AUDIO WORKS BE, BSI, D.A.V.I.D. Systems, dMarc, Enco, IDC, Netia, Omnia, OMT, Pristine Systems, Prophet Systems, Radio Systems, Synadyne, Telos and Zenon Media have all announced IPAudio system compatibility HOW IP-AUDIO WORKS In addition to simplified installation, lower costs – both short and long term – are significant benefits of IPAudio systems APPLICATIONS: Interchangeable Studios • For years, broadcasters have built “Mirror” studios for interchangeable use, but… • Taking any room to air as needed presents logistical challenges with traditional hardwired systems • Even with TDM systems capable of multiplexing logic commands with audio, additional hardware is required APPLICATIONS: Interchangeable Studios • With its decentralized, shared data approach, IP-Audio networks simplify construction and use of identical studios • Gigabit Ethernet has the capacity to carry hundreds of simultaneous stereo audio channels per link – with audio, logic, and program associated data all traveling the same CAT-6 cable APPLICATIONS: WOR System Benefits • IP-Audio system met all operational requirements – including the ability to access any source in any location and automate the switching of feeds to destinations • Installation of an IP-Audio system saved them roughly 25% of the cost associated with traditional means APPLICATIONS: Simple Scalability • Hardwired facilities are not amenable to growth • TDM routers face similar challenges – often requiring additional frames, cards, and increased wiring infrastructure – all at significant cost APPLICATIONS: Simple Scalability • IP-Audio networks are not subject to the growth limitations of hardwired systems • Adding a new studio to the network is accomplished by connecting its audio nodes to a local Ethernet switch, which links to the core switch via CAT-6; then assigning IP addresses to the new inputs APPLICATIONS: Simple Scalability While IP-Audio networks cannot scale upward indefinitely, their ability to carry tens of thousands of stereo channels per system is enough to satisfy most facilities APPLICATIONS: Minnesota Public Radio • MPR’s expansion called for doubling the size of their facilities • The change from traditional routing to IP-Audio made this upgrade easier and provided far greater scalability – all at lower cost • This Ethernet-based system enabled MPR’s network to be fully redundant and self-healing APPLICATIONS: Minnesota Public Radio APPLICATIONS: Quick Changes • With router/switchers, making system changes or additions can difficult • prove Routers reach “plateaus” in terms of capacity • IP-Audio networks solve this problem because they are both scalable and modular APPLICATIONS: XM Canada • Two studios – Montreal and Toronto for origination of XM’s Canadian • content Programming generated in Canada feeds back to Washington, DC headquarters via broadband OC-3 connection APPLICATIONS: XM Canada • Changes occurred because of the scope of the project • “Ethernet has a scalability and flexibility others systems don’t, so building with it provides a much more a la carte approach.” - Tyler Everitt, Sales Manager, Pippin Technical APPLICATIONS: Progressive Buildouts IP-Audio network’s ability to not only scale, but to co-exist with other systems enables broadcasters to begin migrating to new technology without being forced to make wholesale changes to existing studios APPLICATIONS: Progressive Buildouts • Systems can be “staged” to accommodate remodeling or facility upgrades by retiring old gear on a studio-by-studio basis • This process facilitates spreading upgrade costs over time APPLICATIONS: Univision Radio • Univision has 3 stations in McAllen, • TX Starting with KBTQ, switching/routing systems were installed • With a scalable Ethernet backbone, network can expand via additional nodes, (control) surfaces, and Ethernet switches APPLICATIONS: Univision Radio IP-Audio rack at Univision Radio, McAllen, TX 3 audio nodes (below switch, top) provide 24 sets of stereo I/O; router selector accesses audio channels system-wide APPLICATIONS: Painless Configuration/Documentation Each bidirectional Gigabit Ethernet link can transport up to 200 channels simultaneously – eliminating multi-pair, home-and-back cable runs, punch blocks, and soldering - along with most infrastructure troubleshooting APPLICATIONS: Painless Configuration/Documentation In an IP-Audio network, as in a standard Ethernet computer network, each node is assigned a Unicast IP address APPLICATIONS: Painless Configuration/Documentation During configuration, each node’s inputs (and outputs) are given a channel number and descriptive text APPLICATIONS: Painless Configuration/Documentation Behind the scenes, the node’s software assigns each input and output a unique Multicast IP address APPLICATIONS: Painless Configuration/Documentation These names and channel numbers follow the input’s audio throughout the network, and are displayed whenever a user browses or “takes” available feeds APPLICATIONS: Remote Administration and Control Since all parts of an IP-Audio network have assigned IP addresses, the ability to remotely administer the system is built in APPLICATIONS: Remote Administration and Control Since studio consoles in the IPAudio environment are just human interface devices controlling digital mixing engines, software applications can enable talent to board-op themselves remotely APPLICATIONS: Ethernet STL/Data Links Increasingly, stations are finding it hard to overcome frequency proliferation and STL path obstructions as population centers grow. APPLICATIONS: Ethernet STL/Data Links At the same time, the desire to add Ethernet equipment control and other data services to uncompressed STL has increased. APPLICATIONS: Clear Channel, Birmingham • Station cluster experienced increasing STL frequency • interference IP-audio nodes located at studio and transmitter were linked with 18 GHz Ethernet radios • Setup provides multiple uncompressed STL stereo audio channels & backhaul APPLICATIONS: Clear Channel, Birmingham Dragonwave 18 GHz Ethernet radio exchanges audio and data between IP-audio equipment at studio and transmitter. “I see the future of audio transmission belonging to Internet Packet data. There is no end to the wealth of reliable products to get the broadcaster’s job done economically using the consistent protocols and connections of the Ethernet standard.” — Bob Newberry Chief Engineer BUT IS IT READY FOR PRIMETIME? YES! Make no mistake… IP-Audio is not Internet audio! BUT IS IT READY FOR PRIMETIME? IP-Audio networks are not Internet based – rather, they are carefully controlled environments where traffic overloads are not allowed to exist BUT IS IT READY FOR PRIMETIME? IP-Audio networks employ switches with guaranteed QoS, along with careful system design and specialized transport protocols to deliver real-time, no-loss, synchronized Ethernet audio CONCLUSION The numerous operational benefits of IP-Audio networking have been and are being continuously proven by professional broadcasters around the world each and every day THANK YOU!