audioXpress Magazine      February 2026

  audioXpress remains the authority on audio and reproduced sound by connecting manufacturers and distributors with developers, buyers and consultants around the globe! It's readers are the audio product designers, consultants, integrators, DIY enthusiasts, opinion leaders and your best customers. All of them agree that the coverage of trending topics, unique in the audio industry, make audioXpress a must read.

Every month, audioXpress combines the best educational articles on topic such audio electronics, speaker and headphone design, amplifiers (from tube to Class D), acoustics, practical test and measurement, audio engineering praxis, and standards. audioXpress provides inside stories on new audio developments, on R&D Stories, the most complete objective reviews of innovative products and software, and selects some of the best DIY audio projects from worldwide experts.

The Many Opportunities For Microphones
Microphone categories are evolving and innovating.
Editorial By J. Martins
Have you noticed that voice interfaces and digital assistants are back, thanks to artificial intelligence? And that adaptive audio has gained a whole new meaning thanks to AI? What about transcription, summarization, translation, and other AI-powered features that now expand voice capture? Voice applications are everywhere, from more widespread communication and conferencing options to voice assistants or simple voice commands expanding to even more product categories. Even automotive is seeing increasing adoption of applications that require the use of more sensors, including microphones for adaptive features and more active control of car acoustics and sound sources. If you have to find a common technology denominator around these trends, it's easy to identify the preponderant role of microphones. None of those important trends—transversal from consumer to professional and even critical communications—can be realized without one or many microphones being involved. Of course, we are talking predominantly about MEMS microphones for those applications, and that's a category that audioXpress has been following closely and that we have covered in multiple market updates....
---> The Many Opportunities For Microphones.

5 Supporting Companies

Features
39 IK Multimedia ARC ON EAR
USB-C Audio Interface And Headphone
Amplifier With Analog Input And Integrated DSP
For Playback Correction
By Phillip Paul Klose
Learn more about IK Multimedia's ARC ON•EAR, a new
portable hardware device that corrects a headphone's
frequency response and replicates the soundstage of
professional studio monitors in an ideal studio setting.

46 A Guide For Developers
Evaluating And Testing Bluetooth
LE Audio Performance
Part 3—Testing Examples
By Brewster LaMacchia
In the third part of this article series, we'll spend time
on the bench with commercial Bluetooth Low Energy
(Bluetooth LE) products as examples of testing.

52 Phase And Delays
Part 1—Exploring Different Types Of Delays
By René Christensen
Confronted with frequent incorrect statements when
discussing frequency, phase, and delays, this article
is an extensive effort to try and dismantle erroneous
notions, first with some intuition regarding delays,
then some signal processing theory, and finally some
examples.

60 MF-100 Measurement Microphone Preamplifier
By George Ntanavaras
In this article, George Ntanavaras describes the
design and construction of the MF-100, a lownoise
microphone preamplifier designed for audio
measurements. The MF-100 features four selectable
gain settings, three low-frequency bandwidth
restriction filters, and an output voltage clip indicator.

Columns
Sound Control
35 Michael Fay's Acoustic Essentials For Architects
By Richard Honeycutt
Recently published, Acoustic Essentials for Architects,
authored by Michael Fay, a 45-year veteran AV systems
and acoustical design engineer, is a peer-reviewed book
that details the essential terminology and concepts of
architectural acoustics. It offers clear explanations of
principles and practices that this article review explores.

Microphones
Market Update
8 Innovation, Expansion, And Wireless Evolution
By J. Martins
Microphone technology is going through its most momentous
juncture, with ever-increasing volumes and applications
combining with encouraging innovation. This report looks at
new products and microphone-related technologies, not
forgetting the intense acquisition activity felt in this specific
segment.

20 A New Technology Frontier In Microphone Array Architecture
For Hybrid Spaces
By Erica Yorga
A previous article published by audioXpress in February 2023
explained Nureva's unified coverage map, where two microphone
devices work together to form a single microphone array to
cover a large space. This new article takes a deep dive into how
up to six separate microphone devices can locate each other
in the room and work together to form a single microphone
coverage map.

26 The Evolution Of Echo Cancellation And Noise Reduction
(ECNR)
By Harshal Shah and Dheeral Bhole
Voice processing is a key component of communication systems
and an essential enabler for virtual assistants and hearing aids.
This article focuses on the evolution of Echo Cancellation and
Noise Reduction (ECNR) algorithms, emphasizing how
Artificial Intelligence (AI) has transformed this field.

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