All items tagged with transducer (58)

Patent Review: Head-Related Transfer Function Equalization and Transducer Aiming of Stereo Dimensional Array (SDA) Loudspeakers

June 26, 2024 by James Croft

Patent Review: Head-Related Transfer Function Equalization and Transducer Aiming of Stereo Dimensional Array (SDA) Loudspeakers

This patent, awarded to Polk Audio, describes a very specific loudspeaker design that claims to be able to achieve better stereo sound reproduction with “a realistic ambient field and a larger, and more stable acoustic image.” This obviously aims at achieving something that Polk Audio actually patented nearly 40 years ago, with its original Stereo Dimensional Array (SDA) loudspeaker, and for which the new updated patent now provides a new improved version. This article was originally published in Voice Coil, February 2019.

Manger Audio Introduces the Next Generation of Its Star-Shaped Bending Wave Transducer

June 21, 2024 by Joao Martins

Manger Audio Introduces the Next Generation of Its Star-Shaped Bending Wave Transducer

Manger Audio, the specialized speaker manufacturer from Mellrichstadt, Germany, announced the sixth generation of its globally recognized star-shaped transducer, the W06. The Manger driver works on the principle of bending waves, featuring a flat, flexible diaphragm, and unique coil assembly. In its six major redesign, the Manger W06 transducer now features an optimized motor, new damping system, and a new chassis design, delivering improved linearity, lower distortion, and even more impressive dynamics.

Simulation Techniques: Acoustic Topology Optimization for Vibroacoustics Applications

April 10, 2024 by René Christensen

Simulation Techniques: Acoustic Topology Optimization for Vibroacoustics Applications

Acoustic topology optimization is one of the most interesting new technologies in vibroacoustics. These powerful tools enable engineers to find optimal solutions to problems related to their specific applications and this article presents multiple examples in different areas. The article, originally published in audioXpress, April 2023, includes several examples of transducer geometries modified via acoustic topology optimization.

Simulation Techniques: Lumped Element Modeling of Transducers

March 27, 2024 by René Christensen

Simulation Techniques: Lumped Element Modeling of Transducers

An exploration of the possibilities for product development focusing on modeling of transducers. As many engineering tasks require a common ground from which discussions among those involved in a project can take place in a structured manner, this often involves a so-called model of the concept or product. This article discusses one such model: the lumped element model. This article was originally published in audioXpress, March 2023.

Patent Review: Dual Coil Electrodynamic Transducer with Channels for Voice Coil Cooling

March 20, 2024 by James Croft

Patent Review: Dual Coil Electrodynamic Transducer with Channels for Voice Coil Cooling

James Croft reviews a published design submitted on behalf of Harman International Industries on January 2017. The design details an important approach to solving the everlasting problems of heat generation that limits the power handling capacity and the distortion-free acoustic output capability of loudspeakers, as well as their efficiency as electroacoustical transducers. This article was originally published in Voice Coil, September 2018.

A FINE Circle Speaker Design Tutorial. Part 2 — The Tweeter

December 13, 2023 by Peter Larsen

A FINE Circle Speaker Design Tutorial. Part 2 — The Tweeter

This is the second part of Peter Larsen's tutorial for the design of a complete loudspeaker from transducer to final product. The target design is a two-way speaker with a 6.5" woofer and a 1" dome tweeter. Having previously explained the woofer design, in this second article, Peter Larsen explains the process for a 1" silk dome tweeter.

Improve Your Audio Designs in 2024 with audioXpress

December 12, 2023 by audioXpress Staff

Improve Your Audio Designs in 2024 with audioXpress

In audioXpress January 2024, Martin Turesson explains how Thin-ply Carbon Diaphragm (TPCD) technology can be applied also to headphones, and Claus Futtrup writes about Loudspeaker Bass Reflex Alignments. Paul Marchese discusses Composite Amplifiers, Roger Tall explains how a research effort allowed ClarityCap to understand the impact of resonances in capacitors. Our own Jan Didden interviews Robert Munnig Schmidt, while audio expert Ethan Winer explores audible consequences of jitter in digital audio conversion.

A FINE Circle Speaker Design Tutorial. Part 1 — The Design

December 6, 2023 by Peter Larsen

A FINE Circle Speaker Design Tutorial. Part 1 — The Design

For Voice Coil, Peter Larsen developed a tutorial for the design of a complete loudspeaker from transducer to final product. A great way to gain a practical perspective of the whole family of Loudsoft software tools. The target design will be a two-way speaker with a 6.5" woofer and a 1" dome tweeter, and this issue contains part one of this valuable exercise.

Patent Review: Double Coil Speaker

August 23, 2023 by James Croft

Patent Review: Double Coil Speaker

This article discusses a patent originally claimed in 2013 on a Double Coil Speaker design, which was granted in 2017 to Friedrich Reining (Vienna, Austria), on behalf of Sound Solutions International. The abstract from the patent details an audio system comprising an electro-acoustic transducer having two stacked voice coils mechanically linked to a membrane. James Croft discusses multiple approaches in similar concepts, and notes that the current state of technology might finally create a way to explore it in commercial products. This article was originally published in Voice Coil, March 2018.

Speaker Design and Triple Test Bench in Voice Coil August 2023

July 26, 2023 by audioXpress Staff

Speaker Design and Triple Test Bench in Voice Coil August 2023

Voice Coil August 2023 offers the second part of Peter Larsen's FINE Circle speaker design tutorial, updated directories of Voice Coil Winders and Converters, and Magnet Vendors and Distributors for 2023. James Croft reviews a new Diaphragm patent attributed to Tymphany, and Vance Dickason offers a triple dose of Test Bench, starting with the Beyma 10NMFS 10" subwoofer, followed by the Wavecor WF182BD13-04 7" midbass woofer, and culminating in the Scan-Speak 18ME/9642T00 Ellipticor 6.5" Midrange.

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