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M-Noise: A Test Signal & Method for Measuring Loudspeaker Performance for Music

Loudspeaker manufacturers, consultants, and end-users all rely on specifications to predict a loudspeaker’s performance in the field. Yet, these specifications can vary dramatically from one manufacturer to the next. Until recently, there has never been a test signal and procedure capable of accurately and objectively modeling a loudspeaker’s ability to reproduce the dynamic complexity of music under linear conditions.

M-Noise is a new test signal developed by Meyer Sound to overcome discrepancies between test references and real-world program signals. Using M-Noise, loudspeaker manufacturers, consultants, and end-users can accurately predict a loudspeaker’s output capability when reproducing music linearly under actual show conditions.

This presentation will detail why M-Noise was developed, the unique characteristics that distinguish it from other test signals, and how it enables the effective measurement of a loudspeaker’s linear peak SPL.

Session highlights:

• Defining unique characteristics of M-Noise test signal
• Identifying how M-Noise differs from other test signals and accurately predicts real-world loudspeaker performance for music
• The loudspeaker measurement procedure using M-Noise

The Key Essentials of Media Over IP

The move to media over IP is well underway. For some years, both audio and increasingly video signals are being transported across Commercial Off-The-Shelf (COTS) infrastructure. Whilst this approach is proven, there are some common themes that recur for AV professionals dealing with an IT department.

Media over IP is rapidly becoming “AV as a service” in the software domain. There are exciting times ahead as the AV world begins to leverage the significant flexibility and price advantages presented by “software” AV and service-based AV. Having a well-defined network underpins the realisation of these advantages. In this session, attendees will explore the two key aspects where AV professionals must explain requirements to IT professionals for maintaining flawless performance of media over IP.

Session highlights:

• Defining why multicast traffic is commonly used in media streaming in a way IT will appreciate
• Learn IGMP and its role in preventing multicast flooding throughout a network
• Recognize how QoS can be a useful tool in multi-traffic network environments

Radio Frequencies: Best Practice in a Nutshell

Can you count how many devices you use every day thanks to radio waves? From smart phones to laptops, GPS to Wi-Fi and more, we’ve come to harness this form of electromagnetic energy to create some amazing things. But while we use these devices each and every day, do we truly understand how they work?

Explore the spectrum overview, best practices for wireless audio, how to avoid the loss through cable, and how to address interference issues.

Session highlights:

• Gain a better understanding of RF
• Recognize what frequency spectrum is available (now and in the future)

Designing Distance Learning Classrooms Using AVIXA Standards

Aalborg University has, over the years, developed their own standard in the design of distance learning classrooms, based on Avixa’s standards.

Furthermore they have used the knowledge from different research groups within the university to design the user interface of the control system, pedagogical and technical courses for teachers and supporters.

During this webinar you will get examples of the design and how it has been done in practice. Some of the topics we will look at are:

Session Topics:

• How can we measure contrast and how can we adjust the light in the room to minimize problems?
• How can we measure lines of sight?
• How do we design furniture placement? 
• How to calculate the amount of lumens needed in a projector and how to correct the room to optimize problems
• How to calculate the amount and spread of ceiling mounted loudspeakers
• How do we find the right screen?
• Which has our experience been during the process?

Scaling in AV — If It's So Simple, Why Do So Many Go Wrong?

The concept of making an image bigger or smaller is simple yet many clients seem to somehow ‘get the wrong end of the stick.’ The AV professional can sort this out – and as always, it’s better sorted earlier rather than later. In this session, Rob will highlight the first principles of scaling, examine what can go wrong, and consider the different types of scaling algorithms and their uses. The limitations of ‘daisy chaining’ monitors in a ‘wall’ is explored with ways of addressing those limitations.

Session highlights:

• Examples of scaling challenges and solutions
• Examples of scaling challenges and solutions
• Understand and address the limitations of using 'daisy chain' in a video wall

IPTV & Digital Signage Essentials

IPTV traditionally refers to television that is distributed over an IP network – the same kind of network people use to surf the internet and exchange emails. Learn how to harness the power to communicate, educate, and entertain by leveraging your existing IP network while creating visually engaging messages to your customers.

Session highlights:

• What is IPTV and digital signage?
• Network fundamentals of IPTV
• DRM within an IPTV system