Tech Focus: Audio Consoles, Part 1 - Next Generation Heads to the Cloud Even if they don't all go that far, worksurface virtualization is here to stay By Dan Daley, Audio Editor
Wednesday, July 6, 2022 - 7:00 am
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Even 20 years ago, it was easy to define a broadcast-audio mix console: a hub and matrix for processing and combining discrete audio signals into stereo or one surround format or another for use with picture. Since a combination of COVID and new online technologies have come along, though, it's getting harder to tell a proper mix desk from a generic touchscreen.
COVID accelerated an ongoing shift to software-based mix systems: combinations of physical and virtual faders and processing engines that essentially mimic the way conventional hardware-based mixers work. Now the next stage of that transition is the cloud.
New Kid in (Console) Town The transition might be reflected in how Waves, the Israeli audio-plugin-processing developer whose wares - largely, noise reduction and mastering applications used for music production for the past decade - have essentially built a virtual mix console around the plugins.
Introduced just after the NAB Show in April, Waves' Cloud MX is a fully cloud-based audio mixer developed for broadcast environments. As a next-gen, transitional product, it's at home in NDI-based environments and is also deployable on Amazon Web Services' Elastic Compute Cloud (Amazon EC2) for integration with cloud production systems that rely heavily on Amazon's servers. Offered as a subscription-based monthly or annual license (a business model now common for software products and pioneered in pro audio by Avid's Pro Tools), the Cloud MX is intended to eliminate the need for hardware-based solutions on multisite remote productions, says Greg Kopchinski, product manager, live and install, Waves.
Fully cloud-based, Waves' Cloud MX Audio Mixer was developed for broadcast.
We built the mixer around the plugins, which simplifies processing, mix, and routing, he explains, and it can do all of the same things that a hardware mixer can do, with the advantage of operating in the cloud. He notes that integration of the plugin processing with onboard AI and machine learning both reduces the potential for signal latency and takes broadcast users further into an envisioned virtual future for production. We also designed it to use as many as four screens, so mixers can configure it as they prefer and always keep the money' channels at the top of the mix.
The screens themselves, he adds, can be individually propagated in disparate geographical locations - allowing, for instance, a remote producer to access certain channels separately from the A1 but keeping the entire mix in a single virtual mixer.
Conventional Consoles The cohort of conventional consoles was reduced slightly when Studer, whose Vista series desks had been broadcast standbys for decades in key markets like Europe and Canada, saw support fade before parent company Harman Professional was acquired by Evertz Microsystems in January 2021. In an interview with SVG at the time, Mo Goyal, senior director, international business development, live media, Evertz, indicated that the Studer assets could contribute to bringing audio into the cloud along with Evertz's DreamCatcher BRAVO Studio cloud-cluster platform.
One of the things that had started to become clear, especially over the last year and a half, was the transition to cloud production, he said. But the question that kept coming up was, how are you going to handle audio? How do you do this? We saw an opportunity with Studer to see how we can leverage some of that technology and do things in the cloud as part of our larger production toolsets within Bravo and DreamCatcher.
Evertz's Paul Shorter: The cloud is one of the areas that we're looking at to extend the Studer consoles into.
According to Evertz Product Manager, Studer, Paul Shorter, who was on the Studer team at Harman, the company has pared the product line, dropping the OnAir series (because it had become hard to source components for its older hardware) and focusing on the Vista 1, Vista X, and Vista 5B models, which were quietly reintroduced at Evertz's booth at the NAB Show in April and will be released formally in the fall.
We were testing the waters there, he notes. A lot of people were pleasantly surprised to see Studer coming back.
With the product line now known officially as Studer, an Evertz Brand, the focus will be on adapting the consoles to REMI-type remote work, including updating Studer's Infinity Core mic processor to accommodate SMPTE ST 2110 IP standards.
The cloud is one of the areas that we're looking at to extend the Studer consoles into, Shorter says. It's definitely part of the future.
Similarly, Lawo notes the shift from virtual to cloud-based production, with consoles having an important role in the transition.
Lawo's Lucas Zwicker: Private clouds based on data centers are becoming increasingly widespread because they work reliably with minimal latency.
Says Lawo Senior Technical Product Manager, Audio Production, Lucas Zwicker, Private clouds based on data centers in several parts of the world, whose processing power is leveraged from a multitude of locations, are becoming increasingly widespread because they work reliably with minimal latency. This approach, furthermore, allows operators to keep a big chunk of the footage and international sound in one location, with others adding their contribution in real time.
However, he adds, broadcasters can't turn on a dime, and the shift to the cloud will require the same kinds of hybridized solutions that have already been helping them shift from physical to virtual workflows. For
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Tech Focus: Audio Consoles, Part 1 - Next Generation Heads to the Cloud Even if they don't all go that far, worksurface virtualization is here to stay By Dan Daley, Audio Editor 
