audioXpress October 2023 Speaker Builder Issue Is Now Available!

In the October 2023 issue of audioXpress, Jan Didden visits Dutch & Dutch, Reinhold Lutz shares a practical way to measure loudspeakers in any room with his AudioChiemgau Mode-Compensator, which is tested by Rens Tellers. We have two DIY open baffle projects from Perry Marshall and Charlie Laub, Richard Honeycutt writes about the Western Electric 91E, and Ethan Winer shares his Popping P Filter circuit. In the Sound Control column, Honeycutt explores Passive Variable Acoustics, and Chuck Hansen concludes his article series on Power Transformers. audioXpress October 2023 is now available in print, digital, and online.

Available as an hardware processor and now as a native macOS app, the Holophonix spatial sound processor from French audio equipment manufacturer Amadeus, has been evolving since its original introduction and is now proven in multiple high profile productions. Unveiled originally in 2018 at the Frankfurt Prolight+Sound trade show, and commercially available since January 1, 2019, the Holophonix spatial sound processor received many new features and improvements, according to requests and needs expressed by its users.

audioXpress December 2021 is now available. Learn how Room Correction and Speaker Calibration is influencing efforts towards the Self-Calibrating Loudspeaker, Dirac's take on Spatial Room Correction Technology, and how to Measure Directivity of In-Wall Loudspeakers. Richard Modafferi describes his unique crossover design build, Frans de Wit talks about DC Power Supplies, Morty Tarr discusses important aspects of amplifier design, and Michel Nieuwenhuizen offers an Arduino-based motor control for turntables. Start reading online or in print.

Meyer Sound’s Constellation acoustic system was introduced in 2006 and has been discreetly and gradually leading a revolution in variable acoustics and the design of performance spaces. Using an array of ambient sensing microphones, sophisticated digital signal processing, and loudspeakers, Constellation modifies the reverberant characteristics of a venue and redistributes sound throughout the space, ensuring a natural acoustic experience in every seat.

The August 2019 edition of audioXpress features the latest Acoustical Solutions product round-up, and several contributed articles on acoustic-related topics, including, evaluating auditorium acoustics, measuring unwanted vibrations, and frequency timing. This edition also includes Stuart Yaniger's review of the Kali Audio LP-6 Powered Studio Monitors, Ken Bird's assembly-review of the Swans Speakers DIY Kits, and Oliver A. Masciarotte's report from AXPONA 2019. Now available for download and in print!

Yamaha announced an upcoming upgrade to its Active Field Control (AFC) acoustic enhancement system. According to Yamaha, the new AFC4 (fourth generation) system features significant upgrades in DSP processing and hardware. When combined with optimally placed microphones and loudspeakers, AFC4 operators can greatly enhance or create any acoustic environment, even in an outdoor or roofless venue. The new updated solution will be part of Yamaha's presentations scheduled for InfoComm 2019.

The Fraunhofer Institute for Digital Media Technology (IDMT) has upgraded the highly specialized audio setup at its Ilmenau headquarters, which includes a cutting edge object-based system for producing 3D sound, with the installation of Powersoft’s Ottocanali 4K4 DSP+D amplifier platforms. Fraunhofer IDMT - which focuses on applied research in the field of audiovisual media - is widely known for developing ground-breaking technologies for the digital media industry.