The Growing Pains of a Legacy Analog Infrastructure

The Riverside Conference Center operates at the intersection of high-stakes corporate meetings and large-scale conventions. With over 30 individual meeting spaces, including a 1,200-seat ballroom and multiple breakout rooms, the facility demands an audio infrastructure capable of handling complex, simultaneous events. For years, the center relied on a standard analog audio backbone—copper snakes, fixed-format mixing consoles, and manual patch bays. While functional, this system created a series of increasingly severe operational bottlenecks.

Analog cabling is inherently rigid. A single 48-channel snake weighs hundreds of pounds and requires significant labor to deploy. Reconfiguring the ballroom for a different event type—switching from a keynote presentation to a panel discussion—often meant hours of cable reruns and repatching. Signal degradation over long runs was a persistent concern, and troubleshooting intermittent hums or ground loops consumed valuable technical staff time. Perhaps most critically, the analog system struggled to integrate with the modern digital tools that clients increasingly expected, such as seamless Zoom or Microsoft Teams interoperability, multi-track recording, and remote production support.

The center's leadership recognized that the analog infrastructure was not merely an inconvenience but a competitive disadvantage. Clients began requesting specific technical capabilities—such as immersive audio for product launches or isolated audio feeds for live streaming—that the existing system could not reliably deliver. The decision to transition to an Audio over IP (AoIP) solution was driven by the need for flexibility, clarity, and scalability. The core challenge was to replace the entire audio backbone without disrupting the center's packed event schedule.

Setting Clear Objectives for the Digital Transition

Before evaluating specific technologies, the Riverside team worked with an external systems integrator to define a precise set of objectives. These goals guided every subsequent decision and served as the benchmark for measuring success.

  • Eliminate Analog Constraints: Remove the physical limitations of copper cabling. Enable any audio source to be routed to any destination entirely through software, without requiring physical patching or cable reruns.
  • Enhance Audio Fidelity: Achieve pristine, noise-free audio across all spaces. Target a signal-to-noise ratio that meets or exceeds 110 dB, even over long distances between buildings on the campus.
  • Enable Hybrid and Remote Capabilities: Provide native integration with popular video conferencing platforms. Support the ability to send discrete audio feeds to remote participants while receiving and distributing return audio with under 5 milliseconds of latency.
  • Reduce Setup and Changeover Time: Drastically cut the time required to reconfigure rooms between events. Target a 60% reduction in labor hours spent on audio setup and strike.
  • Future-Proof the Investment: Choose an ecosystem with broad manufacturer support, a clear upgrade path, and the ability to scale to higher channel counts and sampling rates without a forklift upgrade.
  • Simplify Infrastructure: Replace multiple heavy analog snakes with lightweight, inexpensive CAT6 cabling. Leverage Power over Ethernet (PoE) to simplify microphone and intercom installations.

With these objectives in place, the team began the technical evaluation of available AoIP protocols and hardware. The decision-making process focused on matching protocol capabilities to the specific operational realities of the conference center environment.

The audio industry currently supports several competing AoIP protocols, each with distinct strengths and limitations. The Riverside team evaluated the three primary contenders: AVB, AES67, and Dante. Understanding the nuances of each protocol was critical to making a decision that would serve the facility for the next decade.

AVB (Audio Video Bridging)

AVB is an IEEE standard (802.1) designed for time-synchronized, low-latency streaming. It offers excellent performance and is supported by some high-end pro audio brands. However, it requires specific network switches with AVB capabilities enabled, which limits deployment options and increases hardware costs. The team found that the ecosystem of AVB-compatible microphones and end-user devices was significantly narrower than other options, creating a risk of vendor lock-in.

AES67

AES67 is an interoperability standard, not a full protocol stack. It allows different AoIP systems to communicate with each other at a basic level. While essential for connecting disparate systems, AES67 alone lacks the advanced discovery, redundancy, and management features found in proprietary protocols. The team viewed AES67 as a crucial "bridge" technology but not a suitable foundation for a primary audio backbone in a complex facility.

Dante

Developed by Audinate, Dante emerged as the clear frontrunner. Dante offers the largest installed base, the widest range of compatible devices from hundreds of manufacturers, and robust management software (Dante Controller and Dante Domain Manager). It supports sample rates up to 96 kHz, delivers deterministic sub-millisecond latency, and provides advanced redundancy options (Dante Redundant). Critically, Dante runs on standard, off-the-shelf Gigabit network switches, which dramatically reduces infrastructure costs and simplifies maintenance. The team also valued the extensive training and certification programs available through Audinate, which would ease the transition for their existing AV technicians.

The Decision: The Riverside Conference Center selected Dante as the primary AoIP backbone. They retained AES67 support on critical endpoints to ensure future interoperability with third-party systems and guest equipment.

Implementation: The Blueprint for Success

The implementation phase was executed in three distinct stages to minimize disruption to daily operations. The project timeline spanned 14 weeks, with the majority of the work occurring during overnight hours and low-traffic periods.

Stage 1: Network Readiness and Infrastructure Hardening

The single most important realization for the AV team was that the network is now the console. The quality, reliability, and security of an AoIP system are entirely dependent on the underlying network infrastructure. The existing corporate IT network was deemed unsuitable for carrying deterministic audio streams due to variable latency, lack of Quality of Service (QoS) configuration, and security concerns.

  • Dedicated AV Network: The team deployed a completely separate physical network for audio and video traffic. This eliminated the risk of data collisions with IT traffic and simplified troubleshooting.
  • Switch Selection: They selected managed Gigabit switches from a major manufacturer with proven performance in Dante deployments. Key features included IGMP snooping (to prevent multicast flooding), DiffServ QoS (to prioritize audio packets), and support for Precision Time Protocol (PTPv2).
  • Cabling Infrastructure: Shielded CAT6a cable was run to every audio drop point. While Dante can run on unshielded cable, the shielded variant provided an extra layer of protection against electromagnetic interference in the electrically noisy environment of a conference center.
  • VLAN Segmentation: The AV network was segmented into logical VLANs for Dante audio, control data (Dante Controller), and video distribution. This allowed the team to manage traffic flow and apply security policies granularly.

Extensive network stress testing was conducted before any audio devices were installed. The team used Dante Controller's latency monitoring tools to verify that the network could handle full channel counts with less than 1 millisecond of latency across the entire facility.

Stage 2: Equipment Integration and Deployment

With a stable network in place, the team proceeded to replace or retrofit the audio endpoints across the facility. The equipment selection prioritized Dante-native devices to avoid the complexity and potential latency of analog-to-Dante converters.

  • Digital Mixing Consoles: The main ballroom received a Yamaha CL5 digital console with a Dante card, providing 128 channels of I/O. Breakout rooms were equipped with Yamaha QL1 consoles, chosen for their compact footprint and powerful processing capabilities.
  • Networked Microphones: The team installed Shure MXA910 ceiling array microphones in the main boardroom and several breakout rooms. These Dante-native arrays provided automatic beamforming coverage, eliminating the need for visible table microphones and dramatically improving the aesthetic of the room for video conferencing.
  • Wireless Systems: The existing fleet of Shure ULXD wireless microphones was upgraded with Dante output cards. This allowed the wireless receiver outputs to be routed directly onto the Dante network without external conversion.
  • Amplifiers and Processing: Powersoft X4 amplifiers with Dante input cards were deployed in the main ballroom, providing network-controlled power and processing directly to the loudspeaker clusters.
  • Intercom and Paging: A Dante-based intercom system (RTS or similar) was integrated for the technical crew. The public address and emergency paging system was also connected via Dante, allowing software-controlled zone paging across all 30 rooms.

Stage 3: Training, Configuration, and Workflow Transformation

Perhaps the greatest challenge was not the hardware installation but the transition in workflow for the technical staff. A technician who previously relied on physical patching and analog troubleshooting now needed to think in terms of IP addresses, subnet masks, and multicast management.

"The ability to route any microphone to any room with a simple drag-and-drop interface felt like magic compared to crawling under the stage to re-patch the analog snake. But it required our team to learn an entirely new skill set centered on network configuration."

— Systems Integration Lead, Riverside Conference Center

The training program included Audinate's Dante Certification courses (Level 1, 2, and 3) for all senior technicians. The team also developed internal "cheat sheets" and standard operating procedures for common tasks, such as patching a new room for a hybrid meeting or integrating a guest laptop into the Dante network.

Outcomes: Measurable Results and Operational Benefits

After six months of full operation, the Riverside Conference Center conducted a formal review of the AoIP implementation against the objectives set at the project's outset. The results demonstrated a transformative impact on both the quality of audio production and the efficiency of the technical team.

Enhanced Audio Quality and Consistency

The elimination of long analog runs completely removed ground loop hums and RF interference that had plagued previous events. The 96 kHz sampling rate and high bit depth of the Dante system provided a dramatic improvement in headroom and clarity. Feedback from event producers and clients was overwhelmingly positive, with specific praise for the "clean, natural sound" in the ballroom and the "crystal-clear" audio in the video conference feeds.

Operational Efficiency Gains

The shift to software-defined routing delivered immediate and significant labor savings. A change that previously required two technicians working for two hours to repatch the ballroom can now be executed by a single technician with a tablet in under three minutes.

  • Setup Time Reduction: Average setup time for a complex multi-room event dropped from 4.5 hours to under 1.5 hours.
  • Changeover Speed: Room reconfiguration between events now takes approximately 15 minutes, compared to 90 minutes previously.
  • Cable and Equipment Costs: The weight of the audio cable inventory was reduced by over 70%. The facility no longer needs to purchase or maintain heavy analog snakes. Spare equipment costs have also dropped, as one Dante-enabled device can serve multiple rooms via the network.

Scalability and Future-Proofing

The infrastructure is now highly scalable. Adding a new room requires only network drops and a Dante-enabled device. The team has already integrated three new meeting spaces without any changes to the core audio backbone. The adoption of a standards-based IP infrastructure means the center can easily integrate new audio technologies as they emerge, such as immersive audio formats or advanced acoustic echo cancellation algorithms.

Enhanced Hybrid Meeting Capabilities

The integration with video conferencing platforms has been simplified dramatically. The Dante network provides a direct, high-quality audio bridge between the local room microphones and the remote participants. The team can now route any combination of microphones to the Zoom or Teams audio feed and return the far-end audio to the room loudspeakers with pristine quality and low latency. This capability has become a primary selling point for the venue.

Lessons Learned and Best Practices for AoIP Deployments

The Riverside project provides a valuable blueprint for other facilities considering a transition to networked audio. Several key lessons emerged that can help AV professionals avoid common pitfalls.

  • Never Skimp on the Network Switch: The network switch is the single most critical component in an AoIP system. Using unmanaged or consumer-grade switches is a recipe for failure. Invest in managed, layer 3 switches with proven support for IGMP snooping and QoS. Consider using switches from vendors like Cisco that offer dedicated traffic prioritization for multicast audio streams.
  • Design for Redundancy: Dante supports a redundant network topology using a secondary network interface and switch. While this increases the initial cost, it provides instantaneous failover in the event of a cable failure or switch malfunction. For a revenue-critical facility like a conference center, redundancy is essential.
  • Invest in Training Early: The technical skills required for AoIP are different from traditional analog audio. Start the training process before the equipment is purchased. A team that understands IP networking fundamentals will be far more effective in designing, deploying, and troubleshooting the system.
  • Create Network Documentation: Maintain accurate documentation of the AV network, including IP addresses, VLAN assignments, and patching legends. This documentation is invaluable for troubleshooting and for onboarding new staff.
  • Plan for AES67/ST 2110 Interoperability: While Dante served as the backbone, the team ensured that key infrastructure components supported AES67. This forward-thinking approach allows the facility to easily integrate with broadcast trucks, guest equipment, and future standards-based systems.
  • Conduct Thorough Commissioning: Before going live, perform system-wide latency measurements using tools like Dante Controller’s latency monitor. Test every possible routing path and confirm that all devices are synchronized to a common clock reference.

Conclusion: The Networked Future of Audio

The transition to Audio over IP has fundamentally changed the operational capabilities of the Riverside Conference Center. What was once a rigid, labor-intensive, and sonically compromised analog system has been replaced by a flexible, high-performance, and scalable digital infrastructure. The facility is now better equipped to meet the demands of modern event production, from complex hybrid meetings to high-profile broadcast events.

The success of this project underscores a broader trend in the professional audio industry. The lines between information technology and audio visual engineering are blurring. Facilities that embrace this convergence and invest in networked audio solutions are positioning themselves for long-term success. For conference centers, hotels, and corporate campuses still operating on legacy analog infrastructure, the question is no longer if they should transition to AoIP, but how quickly they can begin the journey. The Riverside case study demonstrates that with careful planning, a focus on network readiness, and a commitment to staff training, the benefits of AoIP are both immediate and substantial.