All items tagged with audioXpress (22)

Build a Passive Surround-Sound Decoder

November 29, 2014 by Doug Ford

Build a Passive Surround-Sound Decoder

This article by Doug Ford describes a design for a (relatively) simple passive-matrix surround-sound decoder and the interesting things discovered by the author during the process. The decoder features an analog time delay, implemented with several cascaded all-pass networks and it improves sound system quality by eliminating out-of-phase information.

More of Everything

November 28, 2014 by Joao Martins

More of Everything

In November 2013, audioXpress received a facelift. We expanded the content, added several new columns and feature articles, increased our focus on audio research and development (R&D), product design, professional audio equipment, and acoustic science while maintaining our roots in DIY audio and audio electronics.

DIY Microphone Calibration

November 25, 2014 by Ron Tipton

DIY Microphone Calibration

You can inexpensively calibrate a microphone. How? In this article audioXpress author Ron Tipton discusses two methods of “secondary” calibration: the electrostatic actuator and microphone comparison.

The Audio Voice - Weekly Newsletter for audioXpress and Voice Coil Communities

November 22, 2014 by audioXpress Staff

The Audio Voice - Weekly Newsletter for audioXpress and Voice Coil Communities

Don't miss our newsletter, every week! The Audio Voice addresses the interests of both audioXpress and Voice Coil readership communities. A unique perspective for audio developers, manufacturers, marketeers, design and engineering houses, supply chain, and industry insiders. Every week, there's a rich mix of industry news and trends, product design and new technology highlights, trade-show calendar updates, a selection of free magazine articles, and much more, directly to your inbox.

Standards Review - RAVENNA: The Scalable Audio Network Solution

November 10, 2014 by Joao Martins

Standards Review - RAVENNA: The Scalable Audio Network Solution

RAVENNA is a phase-accurate synchronized solution for realtime distribution of audio and other media content in IP-based network environments, using standardized network protocols and technologies. The first part of this article explains how RAVENNA is promoted and implemented. The second article digs deeper into the technology and details examples of companies that decided to adopt this AES67-compatible, Layer-3 IP protocol.

The Audio Voice - Weekly Newsletter for audioXpress and Voice Coil Communities

October 23, 2014 by audioXpress Staff

The Audio Voice - Weekly Newsletter for audioXpress and Voice Coil Communities

It just gets better every week! The Audio Voice newsletter addresses the interests of both audioXpress and Voice Coil readership communities. A unique perspective for audio developers, manufacturers, marketeers, design and engineering houses, supply chain, and industry insiders. Every week, there's a rich mix of industry news and trends, product design and new technology highlights, trade-show calendar updates, a selection of free magazine articles, and much more, directly to your inbox.

Build A High-Quality, High-Power Headphone Amplifier

October 18, 2014 by George Ntanavaras

Build A High-Quality, High-Power Headphone Amplifier

A design based on superior op-amps used in audio applications. A high-quality amplifier must drive high-quality headphones. This article describes the design and construction of a high-quality, high-power headphone amplifier.

Do You Want to Hear the Difference?

October 16, 2014 by Joao Martins

Do You Want to Hear the Difference?

Why is it so easy to find an audio enthusiast claiming that his new headphones, DAC, preamplifier, or pair of speakers “completely changed his perception of the music” and “made it possible to hear things in a totally new way,” and yet so many consumers cannot actually hear the difference when listening to high-resolution audio?

Test Your Speakers’ Performance with this DIY Measurement System

June 23, 2014 by George Ntanavaras

Test Your Speakers’ Performance with this DIY Measurement System

In this article, George Ntanavaras describes the design and operation of a system consisting of the ACH-01 accelerometer and a preamplifier with an integrated analog signal processor. With this system, it will be possible to measure at the low frequencies the acceleration, the velocity, and the excursion of a loudspeaker cone. Also the panel vibrations of a loudspeaker cabinet will be very easily obtained. Originally published on audioXpress June 2011.

audioXpress The Leading Global Audio Development & Design Magazine

April 1, 2014 by audioXpress Staff

audioXpress The Leading Global Audio Development & Design Magazine

The Leading Global Audio Development & Design Magazine and Website

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