Broadcasting is all about communicating to and with the viewing audience. A big part of making this happen is the ability for production teams, technical crew and on-air talent to communicate with each other. Which is why intercom has always been a key technology, albeit one with fairly humble beginnings. But from relatively simple systems for studio communications, with facilities to talk to incoming sources, it has grown into both a continually developing technical area and a substantial business sector.

Part of this can be attributed to the expanding scale of TV production, not just bigger and more elaborate shows but also the ever growing use of remote access through IP networks and the cloud. This has seen REMI (REMote Integration) become a major consideration for intercom installations, although most manufacturers regard it as something that is already well-established in live production.

Smaller Crews
The difference today, says Dave MacKinnon, recently appointed vice president of product management at Clear-Com, is that whereas such a set-up would have been “very well planned out” 10 years ago, broadcasters are now working on a more “run and gun” basis.

“More productions are being done by either one person or a small production team,” explains MacKinnon, who came to Clear-Com after a career that began with the federal government and continued with 12 years at NBCUniversal. “And because of increased bandwidth and 5G, the production center doesn’t have to be in the city the show is coming out of. In the last few years the economics of broadcasting have changed dramatically, with many broadcasters wanting to spin up FAST channels to extend the value of what they are doing.”

As part of this, MacKinnon adds, “flexibility and interoperability” are the two main features broadcasters expect from modern intercom systems. Both these criteria are highlighted by John Hooper, president of Eartec, which produces a range of wireless headsets that can be connected to wired intercoms using the company’s digital interface module.

Eartec’s “plug and play solution includes software to balance the signals of the existing wired intercom and Eartec’s full duplex wireless transceivers to create a seamless audio link,” Hooper says. “We’re also seeing a growth in demand for long-range communication and offer [Eartec’s] Global Connect system for wireless communication over IP. This is linked to a computer or even a smartphone and allows mobile wireless users to communicate in full duplex through the internet.”

Eartec recently announced the availability of its new UltraLITE PRO16, a full duplex wireless headset aimed at larger crew sizes.

REMI Workflows
Rick Seegull, senior vice president of technology and business development at Riedel Communications, adds scalability and reliability to the list of requirements along with flexibility and interoperability. “Of course, there is a major IP component to provide for these features and most are converging to a SMPTE ST 2110-based system so they can easily share resources and sources—for everything, not just intercom—without creating technology islands,” he says.

REMI workflows have been at the forefront of broadcaster’s needs in live location work for several years, Seegull adds.

“This has escalated exponentially since 2020 and now become a standard component for live events, as is At-Home production allowing operators not only to be in the broadcast control room as opposed to on-site but now even being at home whenever the need arises,” he says. “Scalable intercom systems over WAN via VoIP [voice over IP] connectivity or even uncompressed, extreme low latency connections with panels linked anywhere in the world, which allows operators to use the same components they would in the broadcast truck at the venue only back at the main control room or even at home.”

Increasing Interest in Cloud Connectivity
As for the cloud, Seegull comments that it is “definitely being discussed” and used more when it comes to intercoms. This growing interest in virtualized and de-centralized hosting for intercom operations is confirmed by Martin Dyster, vice president of business development at Telos Alliance, which has been a leading proponent of cloud-based communications in recent years.

“We’ve seen a lot of growth and increased interest in this area,” he says. “It’s not necessarily because people are getting into cloud production per se or building entire systems around cloud-based audio and video technology, although those customers exist. People recognize the benefits of a virtualized comms system in being able to deploy an intercom panel at the drop of a hat to anybody anywhere in the world without the overhead of boxing up a piece of hardware, shipping it round it world and relying on someone to hook it up remotely.”

Telos has “worked closely” with the Media and Entertainment team at AWS to determine “best practices” for larger cloud workflows, according to Dyster. “We’ve also worked with technology partners to get over some of the hurdles of moving multicasts between elastic cloud computing instances [a virtual server or computing environment], which, up until now, has been very difficult to do. The partnership with AWS is very positive and they chose us as the comms partner for its delivery of the NAB Show LIVE broadcasts.”

As Michael Brown, business development manager at RTS, observes, one of the first questions asked when people discuss the cloud is: “Whose cloud?” The options are, he says, hardware on-premises or bringing in a third party to oversee the connections set-up. “Other questions that must be answered include “who is responsible for reliable connectivity and who is liable if there are missed commercial inserts when an automated update to another network occurs?’” he muses. “As well as answering these questions, the technology must be proven before a totally cloud-based comms systems is deployed on a high profile, high value production.”

Brown envisions a hybrid design, with a hardware backbone and cloud connectivity “as an adjunct and secondary usage for non-critical communications.”

Gary Rosen, vice president of global sales for wireless intercom developer Pliant Technologies, calls cloud-based intercom products “a great enhancement to an existing infrastructure” but is not convinced it will become the dominant technology for communications, at least in the short-term. “With so many factors needed to make cloud devices work external to the venue, and given the reliability of on-site systems, I don’t believe current systems will be replaced with cloud-based intercom in the near future.”

Options for cloud operations, Rosen adds, include dedicated and hosted servers, which are either in-house or provided by the likes of AWS and Google. AEQ has taken a different approach to most broadcast manufacturers by offering a dedicated cloud service that was created for the company’s systems.

“We manage it and is our own cloud, providing support to our intercom systems with full back-up and no other material on it,” explains sales director Gustavo Robles. “The cloud is very popular because it offers the possibility to interconnect remote locations in a very easy way. But there are still big projects for big customers that demand a traditional, robust, mega-redundant central matrix with dedicated hardware.”

Despite this, Robles acknowledges, requirements are changing, with users deploying what suits the productions, including utilizing smartphones or wearables as wireless beltpacks. The shifting nature of intercom is also shown by Riedel connecting analog microphones to a Bolero wireless intercom beltpack for interview work; and Telos’s prototype combined comms and commentary software panel, which can be controlled either by a touch screen or a hardware box such as the new Elgato Stream Deck Neo.

Which shows that in many ways broadcast intercom is the same as it has always been but is also evolving as new technologies appear to meet broadcaster’s needs.

Eartec has introduced its UltraLITE-PRO16 series that “sets a new standard in full duplex wireless for both studio and on-location TV production,” the company said.

The self-contained headsets provide simultaneous talk operation for up to 16 users without a HUB and are engineered with a “lightning fast” microprocessor that eliminates transmission latency and voice echo supplying crystal clear audio. 

The Pro16 features two channels of communication and utilizes Active Frequency Hopping technology to evade interference while also boosting range up to a half mile. Upgrades include a metal reinforced microphone boom, all stainless hardware and rechargeable batteries that operate for 10 hours. Both single and dual ear models combine extra wide, soft padding to provide exceptional comfort, Eartec said.  

The UltraLITE-PRO16 will begin shipping in July.

The Eartec Company has announced the launch of the Evade Series. The new class of Light Industrial headsets are designed for professional crews that need hands free, wireless communication. 

All Evade headsets are self-contained and feature a digital, full duplex radio built inside the ear cups eliminating wires and belt packs. Both single and dual ear Evade headsets combine deluxe padding and a sleek, fully adjustable headband that provide outstanding comfort. 

In addition, the headsets link automatically without a base station making them easy to operate and affordable, the company reported. 

Standard Evade intercoms connect up to nine users talking simultaneously within a 400-yard range. The Evade Com Module is a compact, dual channel repeater that expands system capacity to 16 headsets.

More information is available at www.eartec.com.

SEATTLE—NAB 2018 was a watershed year for IP technology introductions in the intercom space, with a bevy of new products showcased from various vendors. As these products have begun delivering, customers are learning the advantages of IP-based facility communications.

ENERGY EFFICIENCY AND SCALABILITY

For Guy Low, content and creative manager at RTS/Bosch, the company’s introduction of its ODIN OMNEO digital intercom matrix at the show marked a significant milestone in the company’s product line. “For our existing RTS matrix customers in the broadcast field, this is an active way to incorporate a new, more compact, more energy-efficient system, with all the technology required, into their existing infrastructure,” he said. “Energy efficiency is a key component. Scalability is very important. So there’s a lot going on inside this rack unit format here.”

Doug Heinzen, North American marketing manager for the company, noted ODIN’s “Swiss Army Knife” characteristics.

“You think of all of the cards and boards that we used to have to put into the Atom, or the Atom M chassis, are now actually all integrated on an FPGA and they’re done in software,” he said. “So you never have to open the chassis to have an additional functionality.”

Customers can start off with an initial 16 ports on the box, but through software upgrades or licensing, the number of ports can be increased up to 128 ports in a single chassis, according to Heinzen.

HIGHEST DENSITY

Clear-Com has rolled out its E-IPA high-density audio-and-intercom-over-IP connection card for the Eclipse HX digital matrix intercom family, which it claims “offers the highest density for IP connectivity for any of the major intercom manufacturers at 64 ports in a single card,” according to the Bob Boster, president of Alameda, Calif.-based company. “We actually license it at different number of ports, so you don’t necessarily have to buy it with the full 64, but 64 ports is far in excess of our competitors who are at lesser numbers than that.” Boster added that there are a number of advantages to the new product, though not all of them will all be relevant to every customer.

“For some customers, there is a simplicity in wiring infrastructure,” he said. “There’s a management advantage in terms of routing and moving around and dynamically modifying their system elements very simply. There’s a standardization advantage to being able to put in a platform where everything is all on the IP platform, and it allows them to have a sort of standardization of infrastructure, that otherwise would have been some mixture of fiber and copper, a variety of different connection types, so there’s kind of an advantage there.”

A WHOLE NEW SET OF SKILLS

Riedel has been leveraging IP for its Artist digital matrix intercom ecosystem for several years, offering integrated support for AVB, AES67, Dante, and VoIP, according to Rick Seegull, systems consulting manager for the German-based company.

“Our Bolero wireless intercom system uses antennas that are distributed over AES67 networks that can be layered atop existing IP infrastructures,” he said. “Our SmartPanels link to the Artist matrix using AES67.“Because of lower bandwidth requirements, audio is simply easier to move,” Seegull added. “And for customers that aren’t quite ready to change their entire workflows over to IP, audio is a great way to ease into the world of IP while learning new skills.”

He pointed out that the challenge of managing and maintaining IP networks requires a whole new set of skills for technicians and new levels of cooperation between technicians and their IT departments.

“IT networks are collaborative in nature, so it will be up to everyone—manufacturers, operators, engineers, and IT professionals—to work together on delivering the best results for the technical infrastructures of the future.”

IP BRINGS SCALABILITY

John Schur, president of TV Solutions Group at Telos Alliance, emphasized the importance of a simplified infrastructure with IP.

“Where traditional intercoms have used a matrix, where you have point-to-point cabling from the matrix to each individual device in the system, there are tremendous savings in an IP-based system because, just like a computer network, you run Ethernet cabling from routers and switchers,” he said. “Almost an infinite number of devices can be attached to the network without having to run additional cabling.”

Schur says the Telos’ Infinity system is scalable for similar reasons.

“For the IP infrastructure, you’re able to plug in almost any number of belt packs and panels to your network,” he said. “In our case, we’re supporting open standards, so an IP-based intercom can use AES67. That allows the intercom to seamlessly interface with other devices.

“We make a VX telephony system and so you can interface your telephone system to your intercom system with no additional hardware,” Schur added. “Everything’s on the network, and it’s a matter of making those connections in software.”

INCREASED FLEXIBILITY

Gordon Kapes, president of Studio Technologies said that its platform offers the benefits of using the Dante protocol over standard Ethernet networks.

This Dante Audio-over-Ethernet Technology “is a major strength, eliminating the need for a separate proprietary wiring scheme,” Kapes said. “This can save cost on the initial implementation, adding yet another application to the Ethernet network resources that are now so ubiquitous to all facilities. Long-term benefits of utilizing Dante is that it allows for simple moving, adding, or rearranging of the physical intercom resources. “For users, I think the biggest benefit is flexibility and having the ability to utilize products from a variety of vendors to achieve the desired system performance,” he added. “It’s quite simple: Let’s say that the core of the intercom system is provided by one vendor. This would be good as there would be consistent user interfaces, control, etc.; but then functions such as interconnecting the usual signal sources, and sending signals to other normal destinations, would be trivial.”

WIRELESS WORKAROUND

In addition to the IP revolution, wireless intercom vendors in particular, are dealing with changes in RF spectrum availability.

“The biggest challenge for wireless users is realizing how quickly the 600 MHz auction is impacting business,” said James Stoffo, CTO of Radio Active Designs in East Rutherford, N.J. “T-Mobile is rapidly deploying the channels they purchased. They are not only staying on schedule but are ahead in some areas. Many industry professionals have already opted out of operating in the 600MHz band, just to avoid any possible pitfalls.”

RAD manufactures the UV- 1G wireless intercom system that features the company’s proprietary Enhanced Narrow Band technology, according to Stoffo.

“UV-1G is a unique modulation scheme that is 10 times more spectrally efficient than the current FM technology on the market,” he said. “This proprietary approach is a form of Amplitude Modulation, and it makes the transmitter’s occupied bandwidth—a critical figure in wireless frequency coordination—more predictable. RAD made sure that setup was quick and intuitive, he added.

[Read: TV Technology's 2018 Guide to Intercoms]

“One person can set up a pair of antennas for a limitless number of belt-packs in no time,” he said. “The hardware interface and software app are simple to use, making it a breeze to change parameters of the pack including radio frequencies, assignments and audio routing. Users can move from studio to studio and quickly change parameters to fit their needs.”

PLUG AND PLAY

Eartec makes wireless headset systems that originally were developed for high school football coaching, markets that have guided the company’s product development, according to company President John Hooper.

“These people, whatever they get, it has to come out of a box and work,” he said. “They’re not going to read instructions, they’ve got to be able to put the batteries in and turn the thing on, and it better work.” For the full duplex communication industry, we’re supplying a set that’s very simple to use and therefore very cost effective,” Hooper added. “We’re just getting ready to introduce a set where you can get eight people all talking, without a base station. This set is designed to work in theaters and TV studios.”

There will be lots to watch in the next few years for intercom systems as IP standards firm up.

NARRAGANSETT, R.I.—Eartec is now carrying a new full duplex wireless headset, the UltraLITE. With a compact transceiver installed inside the earcup and the ability to operate without belt pack radios, the UltraLITE can communicate hands free.

Offered in two versions, the Standard series of UltraLITE utilizes one Base headset with up to three additional remote units without a base station. The Hub series features a wearable mini base station that expands the capacity to seven crew members.

Additional features include a range of 400 yards with Digital Enhance Cordless Technology; single and dual ear models; and a 270-degree swivel for the microphone, which becomes muted when the boom is positioned straight up.

Eartec is offering a complete two-person system for $300.