All items tagged with SPL (30)

Klippel Three-Day Lecture 2025 Focused on Sound Quality of Audio Systems - Modeling, Measurement & Control

February 19, 2025 by audioXpress Staff

Klippel Three-Day Lecture 2025 Focused on Sound Quality of Audio Systems - Modeling, Measurement & Control

The increasingly popular, annual three-day lecture event by Wolfgang Klippel returns in March 17-19, 2025. Taking place once again at the Technical University of Dresden, Germany, this is a valuable opportunity to hear Dr. Wolfgang Klippel, professor at the Institute of Acoustics and Speech Communication, providing deep insights into measurement and diagnostic techniques used in loudspeaker design.

Bluetooth Wireless Audio, Innovations in Audio, and More in audioXpress December 2024

November 12, 2024 by audioXpress Staff

Bluetooth Wireless Audio, Innovations in Audio, and More in audioXpress December 2024

audioXpress December 2024 features a comprehensive report on Bluetooth LE Audio and Auracast, the suppliers and development ecosystem. Jonny McClintock adds insights on Ultra-Low Latency Audio Transmission over Bluetooth LE Audio. Plus three reviews of the QuantAsylum QA403 Audio Analyzer, the DPS-2 Power Supply and LNI-2 DC Filter and Stabilizer from RME Audio, and the SPL Phonitor 3 DAC, Headphone Amplifier and Monitor Controller. Hans Polak details his extensive experiments on Moving Magnet Cartridges.

Studio Six Digital Launches New SoundScope VR Module

November 1, 2024 by Joao Martins

Studio Six Digital Launches New SoundScope VR Module

Studio Six Digital announced the release of a new SoundScope VR module for its AudioTools professional audio test & measurement iOS app. SoundScope VR is an advanced acoustic analysis module that uses an advanced FFT algorithm to precisely analyze audio and offers a number of plotting options so that users can visualize the performance of an audio system in real time. Some of it's powerful features include an FFT 1/48th octave audio analyzer, RTA bar, line, and combo RTA+FFT plots, SPL measurements, and split-screen with Spectrograph.

SPL Graph Data: Let’s Get Back to a Level Playing Field

July 24, 2024 by Tom James

SPL Graph Data: Let’s Get Back to a Level Playing Field

This excellent thought piece by loudspeaker industry veteran Tom James, addresses the often disregarded topic of speaker measurements and the corresponding variables of SPL Graph Data. In his short essay James explores the impact of ignoring or intentionally manipulating the rules established in the "Scales and Sizes for Plotting Frequency Characteristics and Polar Diagrams," defined in the IEC-602632 standard, originally from 1982 and updated in 2020.

SPL Introduces New Channel One Mk3 and Track One Mk3 Recording Units

November 14, 2023 by Joao Martins

SPL Introduces New Channel One Mk3 and Track One Mk3 Recording Units

German company SPL used the Tonmeistertagung 2023 (tmt32) conference and exhibition in Düsseldorf to present new products in its professional recording series. This time, SPL introduced its next generation of channel strips, the Channel One Mk3 and the Track One Mk3. Both are updates to the SPL Studio Series, combining a complete source preamplifier and mixing channel strip with analog dynamics processing, improved and optimized for the needs of modern recording studios.

Measuring Loudspeaker SPL Response and Harmonic Distortion at Low Frequencies

November 8, 2023 by Reinhold Lutz

Measuring Loudspeaker SPL Response and Harmonic Distortion at Low Frequencies

This article discusses how to measure loudspeaker SPL response and harmonic distortion at low frequencies in a standard environment, full of reflections from acoustically hard boundaries (e.g., walls, floor, and ceiling), room resonances, and even ambient noise reducing the dynamic range and accuracy of the measurements. The method combines near-field measurements with two identical microphones. This article was originally published in audioXpress, October 2023.

RTW TouchControl 5 Monitor Controller and Audio Meter Gains Loudness & SPL and Bass Management & ImmersivePlus Features

April 14, 2023 by Joao Martins

RTW TouchControl 5 Monitor Controller and Audio Meter Gains Loudness & SPL and Bass Management & ImmersivePlus Features

RTW Audio introduced two new software licenses, adding Loudness & SPL and Bass Management & ImmersivePlus features to its ergonomic TouchControl 5 controller. The dedicated hardware monitor controller and audio meter unites the two focal points for the German company – visualization of audio and hands-on monitor control. The TouchControl 5 ships with a basic set of software, but a variety of additional licenses are available to unlock premium feature sets.

Listen Releases Free Automated Test Sequence for AES75-2002 Measurements

November 18, 2022 by Joao Martins

Listen Releases Free Automated Test Sequence for AES75-2002 Measurements

Listen is the first test and measurement company to automate measuring loudspeakers to the new AES75-2022 (M-Noise) standard for Maximum SPL. This removes subjectivity, increases reliability, and saves time. The test sequence, developed for use within the company’s popular SoundCheck audio test and measurement system, is available free of charge on Listen’s website. And Listen is now offering the new Portland Tool & Die MDT-4000 audio measurement turntable, fully controllable from within SoundCheck.

Fresh From the Bench: SPL Phonitor One d Headphone Amplifier System

February 17, 2022 by Stuart Yaniger

Fresh From the Bench: SPL Phonitor One d Headphone Amplifier System

Stuart Yaniger shares his impressions and measurements of the Phonitor One d Headphone Amplifier System, designed by SPL of Germany. This product uses the company’s unique 120V circuitry, and also features an acclaimed AKM premium USB DAC and balanced stereo line output, effectively enabling it to function as a combination DAC and preamp. An interesting design also because of its Phonitor Matrix, a unique feature designed to electronically create a crosstalk signal and generate something similar to the effect of acoustic crosstalk around our head when listening through headphones. This article was originally published in audioXpress, November 2021.

Get the Lowdown on Audio and DSP with audioXpress November 2021

October 12, 2021 by audioXpress Staff

Get the Lowdown on Audio and DSP with audioXpress November 2021

The November 2021 edition of audioXpress looks at the latest industry trends in digital signal processing, and enabling fully adaptive audio DSP experiences. Roger Shively (JJR Acoustics) writes about how the unique acoustic space of the car interior can be defined by the use of DSP, and Al Clark (CEO, Danville Signal Processing) shares his company’s journey into the development of the dspNexus DSP Audio Processor. Now available for viewing online, download and in print.

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