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Connect the source
A computer, camera, signage player, set-top box or other source connects to an AV over IP encoder.
AV over IP uses a data network to transport audio, video, USB and control signals between rooms, displays and devices. It replaces a fixed collection of point-to-point AV cables with a flexible, scalable networked AV system.
AV over IP, sometimes written as AVoIP, means distributing professional audio visual signals over an Internet Protocol network.
An encoder receives a signal from a source such as a computer, camera, media player or TV receiver. It converts that signal into data packets and sends them through a network switch.
A decoder receives the required stream from the network and converts it back into a signal that can be presented on a display, projector, loudspeaker system or recording device.
Unlike internet video streaming, a professional AV over IP system is usually designed for controlled local networks where picture quality, reliability, security and low latency are important.
The system follows four basic stages, from the original AV source to the screen, projector or audio system selected by the user.
A computer, camera, signage player, set-top box or other source connects to an AV over IP encoder.
The encoder compresses or packetises the video, audio and supporting data so it can travel across the IP network.
Managed network switches direct each stream to the required destinations using configured network and multicast rules.
A decoder reconstructs the selected stream and sends it to a display, projector, DSP, amplifier or another AV endpoint.
In practical terms: instead of physically wiring every source to every destination, the network becomes the signal-distribution platform.
A reliable system involves more than connecting AV endpoints to an ordinary network switch. Each component must be selected and configured as part of one coordinated AV and network design.
Encoders connect sources to the network. Depending on the platform, they may accept HDMI, USB-C, SDI, analogue audio or other signals.
Decoders receive network streams and provide the local output needed by a display, projector, amplifier or recording system.
The switches require suitable bandwidth, multicast management, quality-of-service configuration and, where required, PoE capacity.
A control processor or software platform allows users to select sources, route content, manage rooms and monitor endpoint status.
Structured data cabling, fibre links, equipment racks and patching provide the physical foundation for dependable signal transport.
Remote monitoring can help support teams identify offline endpoints, network faults and signal problems before they interrupt users.
Traditional matrix systems can remain appropriate for smaller, predictable applications. AV over IP becomes particularly valuable when the system must grow, cross multiple rooms or support flexible routing.
| Design consideration | Traditional point-to-point AV | AV over IP |
|---|---|---|
| Signal routing | Signals pass through a dedicated AV matrix or switcher. | Signals are routed through managed network infrastructure. |
| Expansion | May require a larger matrix or replacement hardware. | Endpoints can often be added as network capacity permits. |
| Cabling | Dedicated AV cable paths connect sources and destinations. | Structured copper or fibre network links connect endpoints. |
| Distance | Limited by the selected cable and extension technology. | Can cross rooms, buildings or campuses through the network. |
| Monitoring | Depends on the control and hardware platform. | Network-connected endpoints can support central monitoring. |
| Design complexity | Usually familiar to traditional AV technicians. | Requires coordinated AV, network and cybersecurity design. |
Read more about why the AV industry is moving away from point-to-point distribution .
Professional audio and video create sustained, time-sensitive network traffic. A successful AV over IP installation therefore requires a network designed for the selected platform—not simply spare switch ports.
The required 1, 2.5, 10 or higher-gigabit architecture depends on stream bitrate, resolution, image quality and the number of simultaneous signals.
Technologies such as IGMP snooping and an appropriately placed querier help prevent multicast streams from flooding unintended network ports.
QoS policies can prioritise time-sensitive audio, video and control data so competing traffic does not interrupt the experience.
Dedicated switches or properly designed VLANs may be used to manage traffic, security, support responsibilities and fault isolation.
Critical environments may require redundant links, switches, power supplies and recovery procedures to reduce single points of failure.
Endpoint authentication, firmware management, access control, encryption and secure configuration should form part of the design.
Masters Voice Technology combines commercial AV integration, electrical work and communications cabling, helping coordinate the AV endpoints with the infrastructure supporting them.
AV over IP is best suited to environments that need to distribute several sources across multiple displays, rooms or operational zones.
Route presentations, meeting-room content and digital signage across divisible rooms, training spaces and multiple floors.
Corporate AV solutions →Distribute teaching content, live events, announcements and video between classrooms, halls and shared learning spaces.
Education AV solutions →Connect council chambers, hearing rooms, operations spaces and public information displays through managed AV infrastructure.
Government AV solutions →Route live sport, advertising and event content to selected displays and audio zones throughout the venue.
Venue AV solutions →Present multiple live feeds on operator displays and video walls while allowing centralised source selection and monitoring.
Explore AV solutions →Deliver centrally managed media to reception areas, public zones, retail displays and wayfinding screens.
View AV projects →The best design is not automatically the system with the most technology. It is the architecture that provides the required performance, flexibility and supportability without unnecessary complexity.
Masters Voice Technology designs AV over IP systems around the required user experience, network capacity and operational environment—not around a product list alone.
Identify sources, destinations, room modes, users, workflows and future expansion requirements.
Select the platform and calculate bandwidth, switching, cabling, endpoint, control and power requirements.
Install and configure the AV equipment, network infrastructure, control interfaces and system security.
Test performance, document the system, train users and establish ongoing monitoring and maintenance arrangements.
AV over IP means transporting audio, video and related control data across an Internet Protocol network. Encoders place the AV signals onto the network and decoders reproduce them at the required destinations.
No. Although both use IP technology, professional AV over IP is normally deployed on a managed local network designed for predictable quality, low latency, security and reliable signal distribution.
Not always. It may use dedicated switches, segmented network infrastructure or a properly designed shared network. The decision depends on bandwidth, security, support responsibilities and the selected AV platform.
Professional platforms are designed for low-latency operation, but actual performance varies by codec, product, configuration and network design. Applications involving live interaction should have a defined latency requirement.
Yes. Many current AV over IP platforms support 4K video, but image quality, colour sampling, frame rate, HDR support and bandwidth requirements differ between systems. These factors should be checked during design.
Possibly, but it should first be assessed for switch compatibility, bandwidth, multicast management, QoS, cabling, security and available power. Spare ports alone do not confirm that the network is suitable.
The right platform depends on the number of endpoints, required image quality, latency, USB and audio needs, network architecture, security, control integration and ongoing support model. Masters Voice Technology works with platforms including Q-SYS, Crestron and Extron.
