All items in category Interviews

Joachim Gerhard on Low Noise Phono Stages: The Discrete INA Design

November 13, 2024 by Jan Didden

Joachim Gerhard on Low Noise Phono Stages: The Discrete INA Design

Ask audio industry insiders and audiophiles alike about Joachim Gerhard, and chances are that they mention the many high performance speakers he designed over the years. But he also has a great track record designing phono preamps and this interview explores that aspect of Joachim’s career. In this second part of the interview, Jan Didden explores Gerhard's design ideas and goes into details on his Discrete INA design, a discrete input stage instrumentation amplifier topology.

Joachim Gerhard on Low Noise Phono Stages: Design Considerations and Circuit Topologies

November 6, 2024 by Jan Didden

Joachim Gerhard on Low Noise Phono Stages: Design Considerations and Circuit Topologies

Ask audio industry insiders and audiophiles alike about Joachim Gerhard, and chances are that they mention the many high performance speakers he designed over the years, initially for Audio Physic, currently for Suesskind Audio. But Gerhard also has a great track record designing phono preamps. This interview explores that aspect of Joachim’s career. In the first part of this interview Joachim discusses the design considerations and circuit topologies for low noise phono stages, culminating in his very low noise and Flexible Phono Stage (FPS) design. This article was originally published in audioXpress, September 2024.

Interview: Class-D The Hypex Way - An Interview with Jan-Willem Winters

September 12, 2024 by Ward Maas

Interview: Class-D The Hypex Way - An Interview with Jan-Willem Winters

Recognized as one of the firms that pioneered Class-D amplification, today Hypex is an established manufacturer and OEM supplier. Jan-Willem Winters is the CEO leading the strategy behind the expansion that made Hypex one of the major players in the market for high-quality Class-D amplifiers. He started in R&D in 2010, and loves talking about audio amplification.

Interview: An Afternoon with Robert Munnig Schmidt

June 12, 2024 by Jan Didden

Interview: An Afternoon with Robert Munnig Schmidt

Robert Munnig Schmidt is intrinsically connected with advanced motion systems and motional feedback applications. He is now retired from his own consultancy business, following an outstanding career that includes key R&D positions at Philips, being part of the ASML founding team, and teaching Mechatronic System Design at the Delft University of Technology. In this interview, Schmidt revisits the theory and practice of motional feedback, silicon wafer steppers, voice coils, Class-D amplifiers, and much more.

Qualcomm S7 Pro, Micro-Power Wi-Fi, and XPAN Technology

March 14, 2024 by Joao Martins

Qualcomm S7 Pro, Micro-Power Wi-Fi, and XPAN Technology

Qualcomm S7 Pro, Micro-Power Wi-Fi, and XPAN Technology. An interview with John Turner, Senior Director, Product Management Voice and Music at Qualcomm Technologies International about the new Qualcomm S7 Pro platform that brings micro-power Wi-Fi and Bluetooth LE Audio to TWS earbuds. The same battery life, much better quality, high-res lossless audio, longer range, same user experience as Bluetooth on TWS earbuds. How does it work?

Inspire the Possibilities with Bluetooth LE Audio and Auracast

February 16, 2024 by Joao Martins

Inspire the Possibilities with Bluetooth LE Audio and Auracast

An Interview with Chuck Sabin, Senior Director, Market Development, Bluetooth SIG. The Auracast Experience at CES 2024 enabled much more awareness about the possibilities of the technology and certainly caused a lot of press coverage. But it also generated several questions from many manufacturers who are eager to get to market. Anticipating that scenario, I scheduled an interview with Chuck Sabin to discuss the Bluetooth SIG's perspective of the roadmap for LE Audio and Auracast.

A New Time for Avid Pro Tools - A Conversation with François Quereuil, Vice President, Audio Product Management at Avid

November 16, 2023 by Joao Martins

A New Time for Avid Pro Tools - A Conversation with François Quereuil, Vice President, Audio Product Management at Avid

Using the opportunity of the recent Audio Engineering Society convention in New York, I met with François Quereuil, Vice President, Audio Product Management at Avid, to discuss all the latest trends in that space, and in particular to learn where Pro Tools is heading. For the benefit of our many readers who don't normally follow the pro audio markets and are not exactly familiar with Avid and Pro Tools, enough to say that this is the market leading digital audio workstation (DAW) solution.

Interview: GRAS EQset “Fire and Forget” Measurement Microphone Series

August 30, 2023 by Rens Tellers

Interview: GRAS EQset “Fire and Forget” Measurement Microphone Series

audioXpress interviewed Rémi Guastavino, Director of Product Management at GRAS Sound & Vibration, to uncover the details of the new EQset measurement microphone series. This important innovation in measurement microphones is directly targeted at production lines and allows users to reduce spread in specifications compared to what's possible with more traditional microphones. Learn about the story of the development and the series' first product on the market. This article was originally published in audioXpress, July 2023.

An Interview with John Whitecar: A Decades-Long Journey to the Future of Automotive Audio

July 28, 2022 by Adam Levenson

An Interview with John Whitecar: A Decades-Long Journey to the Future of Automotive Audio

Automotive audio industry veteran John Whitecar is currently the VP of Product Management, Automotive at DSP Concepts and a leading expert in his field, renowned for his important work with Texas Instruments, Tesla, and Ford, among others. In this interview, John shares details of his work in the design of custom-mixed signal DSP-based automotive receiver ICs, which awarded him the Henry Ford Technology Award from Ford Motor Company. He also discusses why we are only getting started in an exciting era for automotive audio. This article was originally published in audioXpress, June 2022.

Peter Bartók Interview

July 13, 2022 by Paul J. Stamler

Peter Bartók Interview

Originally published in audioXpress June 2006, this interview by Paul Stamler is a unique document detailing the work of Peter Bartók (Budapest, July 31, 1924 – Florida, December 7, 2020) as a pioneering recording engineer and one of the best of the early LP-era engineers, involved in remarkable recordings with his New York City label Bartók Records, and working with Moses Asch’s Folkways Records. He also worked with Caedmon Records, a pioneer in recorded poetry, as well as disk-cutting for early-era Elektra Records and other small NYC area labels.

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