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Digisyn Link™ DL-MAX AES67 Mixing Matrix

Innovative Audio Processing Approach

From the diagram, in the Digisyn Link™system:

DMX208 serves as the audio interface box for analog audio signals.

A/D conversion or DSP processing is performed on all analog audio signals via DMX208.

The processed signals are then aggregated into the switch network and routed to DLMAX through a 2.5G Ethernet port.

After routing, the signals return through the network to the audio interface box for D/A conversion and additional DSP processing.

Finally, the signals are output to power amplifiers for amplification.It is worth noting that the Digisyn Link™ system is a distributed processing, centrally controlled, and managed AES67 network audio system. 

Additionally, in this network, other control devices can share the same network without requiring a separate VLAN for control.

Robust Processing Capabilities and Innovative Architecture

The DIGISYN LINK system architecture is straightforward yet robust in terms of processing capability. It combines the processing power of core processors (DL-MAX) and edge computing (DMX208). By utilizing DMX208 in combination, the system can provide processing capabilities for up to 1536x1536 analog audio channels, accommodating audio systems of different scales.

The Digisyn ecosystem incorporates innovative distributed technology for audio signal processing. With the extensive processing resources offered by the combined CPU processing engines of all DMX208 units, DIGISYN LINK surpasses the limitations of traditional central matrices found in current audio devices. This freedom from processing constraints empowers audio system designers to create bespoke audio systems that best suit their requirements.

Internally, DMX208 and DL-MAX integrate a comprehensive range of audio processing modules, routing control modules, device monitoring modules, and more. These diverse audio processing modules, including PEQ, compressors, noise gates, AEC, FIR, AGC, ANS, and others, handle all audio processing tasks within the audio system. The robust processing capabilities of DMX208 nodes and DL-MAX allow audio system designers to perform complex audio processing on each individual audio channel.

Digisyn Link™ AES67 Solution

Digisynthetic proudly introduces its new generation AES67 network audio solution - the Digisyn Link™.

The Digisyn Link™ system is a comprehensive platform covering all functions of the entire audio chain, from source input and DSP processing to speaker output. This system is capable of routing and allocating all audio signals, performing DSP processing, and controlling and monitoring all devices while maintaining the lossless audio signal quality and ultra-low latency of the AES67 standard. Optimized for large-scale audio systems with high requirements, the Digisyn Link™ system is an ideal choice for any venue in need of a powerful audio processing system, fully compliant with broadcasting standards.

Applicable scenarios include sports stadiums, arenas, theme parks, performance venues, transportation hubs, government facilities, multi-hall courtrooms, hotels, university campuses, educational institutions, and radio stations, among others. ​

DL-MAX Super Large Mixing Matrix

DL-MAX

DL-MAX serves as the core of the entire system, handling mixing, routing control, device monitoring, third-party system interfaces, and various special function applications.

In summary, the DIGISYN LINK AES67 audio system is comprised of DMX208 network interface boxes for system inputs and outputs, and the powerful DL-MAX mixing matrix.

Flexible Expansion

Optional USB interface (to meet BYOD demands), supports optional interfaces like GPIO, 32x32 analog audio, and more.

Ecological Integration

Seamlessly integrates with Digisyn's ecosystem of microphones, speakers, and amplifiers. Supports splicing and merging functions with DMX208, compatibility with Digisyn™ virtual sound card, and AES67 multicast stream support.

Super Large Channel Audio Router:

1536x1536 @48kHz (Simultaneously available in 1024, 512, 256, 128 channels), perfectly adaptable to various scenarios. With latency as low as 1ms, lossless transmission, and support for a maximum sampling rate of 192kHz.

High-Performance Audio Service Station

Supports gain-sharing mixing. Optional DSP functionalities include 32-channel AEC echo cancellation processing, and up to 4096 taps FIR.

AES67 Stage Box DMX208/DMX208A

DMX208, as the external audio interface for the DIGISYN system, serves as the audio stage box with DSP processing power.

It supports a maximum sampling rate of 96kHz with a default 24-bit sampling depth (up to 32 bits).

Utilizing Ethernet cables for audio signal transmission, DMX208 offers several advantages.It expands the system's coverage area, reduces analog cable deployment, minimizes signal attenuation during transmission, and enhances resistance to interference in the audio signal transmission process.

Digisyn Link™ 64x64 AES67 Virtual Sound Card

The Digisyn AES67 virtual sound card transforms your computer into an AES67 workstation seamlessly integrated with networked audio devices.

Compatible with Windows 10 and 11, it provides exceptional audio processing and transmission performance by deeply optimizing integration with the WDM standard.When combined with Digysn Link™ embedded devices, it enables recording and playback functionality with any audio application. Using RJ45 Ethernet ports and Cat5A/6 cables, this virtual sound card supports high-quality audio recording with up to 64 channels.

It also facilitates clear and uninterrupted audio in meetings and presentations, allowing Skype or Zoom VoIP calls to be shared through existing network infrastructure and Digisyn Link™ embedded audio devices.

Features

Innovative Audio Processing Approach

The Digisyn Link™ system takes a unique approach to audio signal processing, allowing DMX208 to outperform other audio processing devices in terms of total processing capabilities.

This innovative method can be summarized as follows: by adopting edge computing, the traditionally expensive central chip is transformed into nodes that utilize multiple high-performance and cost-effective chips, leading to significant cost reduction.

More Precise Synchronization Technology

The foundation of real-time audio signal transmission in network audio systems is "system synchronization." Each network audio transmission protocol has its own system synchronization mechanism, and the DIGISYN LINK system utilizes the widely applied "Precision Clock Synchronization Protocol for Network Measurement and Control Systems" - IEEE1588V2 standard. IEEE1588V2 is fully aligned with broadcasting standards, and its main principle involves periodic correction and synchronization of clocks across all nodes in the network through a synchronization signal. This achieves precise synchronization in Ethernet-based distributed systems, featuring easy configuration, rapid convergence, and minimal network bandwidth and resource consumption.

Simplified Device Network Configuration

The DIGISYN LINK system utilizes the "Zero Configuration Network Protocol" to simplify network configuration. This protocol incorporates four key technologies: automatic IP address assignment, domain-to-address translation, service discovery, and multicast address allocation. With these technologies, setting up a relatively uncomplicated network system with the DIGISYN LINK system only requires configuring each hardware device to automatically obtain an IP address.

This allows the system to automatically configure the IP addresses of all devices without the need to manually set IPs or IDs for each device. Communication between devices can be achieved using meaningful "machine names" instead of hard-to-remember and meaningless IP addresses. When checking the status of system hardware devices, there is no need to input the IP addresses of each device. The "Zero Configuration Network Protocol" automatically lists all supported devices in the network, facilitating device status monitoring.

The support for the "Zero Configuration Network Protocol" makes the DIGISYN LINK system highly convenient in terms of system network configuration and device management.

Real-time Uncompressed Audio Transmission

In the Digisyn Link™ system, the utilization of the AES67 protocol enables the creation of unicast and multicast connections, allowing for real-time transmission of uncompressed audio signals with ultra-low latency (below 5ms) within a local area network. Unlike traditional RTP transmission in local area networks, which involves compressed audio signals resulting in delays exceeding 400ms, the Digisyn Link™ system ensures consistent sound quality emitted by each speaker.

This section focuses on introducing the structure, system characteristics, and DSP processing capabilities of the Digisyn Link™ system.