All items tagged with room acoustics (62)

REDI Acoustics Designs High-End Listening Room for Hifi Reviewer Tom Martin

April 21, 2025 by audioXpress Staff

REDI Acoustics Designs High-End Listening Room for Hifi Reviewer Tom Martin

audioXpress doesn't normally report on installations and application stories of products. In this case we are opening an exception because of the example it promotes. REDI Acoustics, the acoustic research and software development firm founded by Peter D’Antonio, the founder of RPG Diffusor Systems, together with John Storyk and PK Pandey of WSD, did a listening room project for Absolute Sound editor and CEO, Tom Martin. Naturally the project uses REDI's design software tools for room optimization.

Simulation Techniques: Perturbation Methods in Audio Engineering

April 2, 2025 by René Christensen

Simulation Techniques: Perturbation Methods in Audio Engineering

Standard simulations are closely tied to the analytical framework much more than the numerical. Simulation software gives insight into physical products that could not be achieved otherwise, often leading to less attention being paid to analytical methods and descriptive mathematical expressions related to the physical application. This article explores an analytical approximation method described as a perturbation approach.

Patent Review: Multiple Path Acoustic Wall Coupling for Surface-Mounted Speakers

February 19, 2025 by James Croft

Patent Review: Multiple Path Acoustic Wall Coupling for Surface-Mounted Speakers

This article reviews a patent awarded to Paul Wayne Peace Jr. and Derrick Rodgers, on behalf of Harman International Industries. The patent describes a surface-mounted loudspeaker design that mitigates the interference between direct low-frequency (LF) energy and reflected LF energy by breaking the LF energy from an LF driver into multiple paths using one or more of waveguides, driver load plates, and enclosure ports to diffuse the reflected energy and minimize frequency response errors.

Nureva App for iOS Simplifies Measurement and Analysis of Acoustic Performance in Larger Spaces

January 30, 2025 by Joao Martins

Nureva App for iOS Simplifies Measurement and Analysis of Acoustic Performance in Larger Spaces

Nureva, the Canadian company that offers the HDL310 and HDL410 audio conferencing systems solutions, announced the addition of a powerful acoustic check tool to the newly released iOS version of the Nureva App. The patent-pending tool app makes it easier to measure and analyze acoustic performance in larger spaces, helping users to determine the optimal placement of Nureva HDL Pro Series systems.

Fresh From the Bench: PSI Audio AVAA C214 Digital Active Bass Absorber

January 15, 2025 by Philipp Paul Klose

Fresh From the Bench: PSI Audio AVAA C214 Digital Active Bass Absorber

This article is a detailed review of the intriguing AVAA C214 Digital Active Bass Absorber from Swiss studio monitor and high-end speaker specialist PSI Audio. The concept is more or less the same as the AVAA C20, which PSI launched in 2017. the first commercially available analog active bass trap. Now, with the AVAA C214, PSI has introduced a digital controlled active bass trap that's better suited to deal with room modes below 150Hz in listening spaces and small studios rooms. For this review, the solution was tried and tested in two different spaces and applications.

ADAM Audio Unveils New D3V Compact Nearfield Monitoring System

October 18, 2024 by Joao Martins

ADAM Audio Unveils New D3V Compact Nearfield Monitoring System

Adam Audio has revealed what will be its most compact active monitor design, and also its most affordable. The new D3V is a compact nearfield monitoring system designed for songwriters, producers, and music enthusiasts that draws from the company’s origins, with its 1.5” D-ART AMT tweeter, and adds a 3.5” aluminum woofer plus dual-sided matching 3.5” passive radiators to extend the frequency response. Featuring a powerful DSP section for room compensation, the D3V also adds a USB-C input for direct DAW integration - no audio interface required.

PSI Audio Promotes New Active Velocity Acoustic Absorber C214 at High End 2024

May 6, 2024 by Joao Martins

PSI Audio Promotes New Active Velocity Acoustic Absorber C214 at High End 2024

PSI Audio expanded its Active Velocity Acoustic Absorber (AVAA) concept in 2023 with the introduction of the AVAA C214 model, suitable for home audio environments. The PSI Audio booth R09 in hall 3 of the MOC Munich will feature a listening room equipped with AVAA C214 and Héritage3 high-end speakers for visitors to experience the effect of the AVAA. There will also be a special demo box to illustrate its principle outside the listening room.

Simulation Techniques: Room Gain

April 17, 2024 by René Christensen

Simulation Techniques: Room Gain

Room Gain is a term not used in acoustics textbooks as such. Room acoustics is naturally often discussed in the hifi community, since the room you put your loudspeakers in will heavily influence the sound that reaches your ears, both at low and high frequencies. In these discussions the term "room gain" sometimes comes up. This article was inspired by Erik Wiederholtz (CTO of Perlisten Audio) and his interest in the topic, and he was kind enough to provide measurements and photos from his own listening room for a sealed subwoofer as well as for a vented subwoofer.

Holoplot and AFMG Implement X1 and X2 Matrix Array In EASE 5

April 8, 2024 by Joao Martins

Holoplot and AFMG Implement X1 and X2 Matrix Array In EASE 5

The inclusion of Holoplot products in the latest EASE 5 update, will allow users to investigate the possibilities and impact of using Matrix Arrays in any venue. Users of the popular electro- and room acoustic simulation software can now model Matrix Arrays and Beam Optimizations in the company's Plan system design software to view sound pressure level simulations. The resulting array configurations can now be exported to EASE 5 for further analysis based on closed-room simulation.

Norsonic Announces New Nor283 Dodecahedron Loudspeaker

April 3, 2024 by Joao Martins

Norsonic Announces New Nor283 Dodecahedron Loudspeaker

Norsonic unveiled a follow-up to its longstanding Nor276 dodecahedron loudspeaker, with a new small, lightweight, yet powerful and rugged design, engineered for the most demanding field and laboratory applications. The new Nor283 supersedes all previous Norsonic models, being able to deliver impressive sound power level at low frequencies for its size. The output level when powered by the battery-operated power amplifier Nor282 is an impressive 123dB LW.

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