Tag Archive for: soundcheck

New SoundCheck Brochure – Chinese

Our new SoundCheck® brochure is now available in Chinese. This short 12 page brochure is a top-level overview of the SoundCheck audio test system and associated hardware.

download_pdf_icon Download Electronic Version

or complete the form below to request a hard copy.

New SoundCheck Brochure

Our new SoundCheck® brochure is now available. This short 12 page brochure is a top-level overview of the SoundCheck audio test system and associated hardware.

download_pdf_icon Download Electronic Version

 

or complete the form below to request a hard copy.

SoundCheck 14.1 for Mac

SoundCheck for Mac

SoundCheck for Mac

Listen is excited to announce the release of SoundCheck 14.1 for Mac. Offering similar functionality* to the Windows version of SoundCheck 14, this is the first large-scale commercial audio test software to run natively on a Mac. SoundCheck is a powerful software package which controls and communicates with your audio measurement hardware and contains all the stimuli, algorithms and functionality to develop and run complete audio tests on loudspeakers, headphones, microphones, smartphones, tablets, hearing aids and more.

SoundCheck 14.1 for Mac offers seamless integration with Listen’s expanding line of hardware products including AmpConnect, DC Connect, SoundConnect 2 and AudioConnect, making the initial system setup quick and easy, even for novice users and non-technical personnel. All Listen hardware products, as well as the Portland Tool & Die BTC-4148 Bluetooth interface can now be directly controlled from within the software, enabling them to be changed as part of a sequence.

Users of previous PC-based versions of SoundCheck can upgrade these to the Mac version for an additional fee. Contact sales@listeninc.com for more information.

* Note that there are some minor differences between the Mac version and the Windows version due to variations in the development environment, particularly surrounding data export functionality. Please contact your sales engineer for more information.

More about SoundCheck for Mac (V.14.1) and SoundCheck version 14.0 for Windows  (same features )

 

SoundCheck ONE Updated and Expanded

SoundCheck ONE, our budget SoundCheck system has been updated and expanded for its release with SoundCheck 13. SoundCheck ONE is essentially a lower cost, simplified, version of SoundCheck coupled with the AmpConnect ISC hardware. SoundCheck ONE offers the capability to test loudspeakers, microphones and headphones within predetermined sequence templates.

Although the user interface is the same as in the full version of SoundCheck, rather than using the Sequence Editor, SoundCheck ONE users are supplied with sequence templates. These templates serve as the starting point for all SoundCheck ONE tests and can be used to generate as many product-specific sequences as desired by selecting parameters such as the stimulus signal, characteristics to be measured, frequency range, level and limits.

SoundCheck ONE is designed for customers who do not own a full version of SoundCheck and need a low cost and easy to set up system for basic production line tests of loudspeakers, microphones or headphones. While it offers the same accuracy, advanced algorithms and speed as the regular version of SoundCheck, its flexibility and test customization capabilities are restricted. It is a good entry point for a company testing their products for the first time or moving up from a more rudimentary test system as it can be upgraded to the full version at any time for an additional fee.

SoundCheck 13 Preview

SC 13 graphSoundCheck 13 (shipping Q1 2014) is packed with improvements and upgrades, including a simpler, user interface, improved memory management, faster test development and the option to use longer test signals. Changes and improvements include a complete overhaul of the sequence editor, making it faster to write, troubleshoot and modify test sequences, and updated versions of the XY and Waveform graphs with a cleaner look and more intuitive interface.

Significant improvements to SoundCheck’s memory management allows the use of longer stimulus signals. It also means that sequences that use multiple acquisition steps can also keep iterative recorded waveforms in the memory list without incurring significant memory consumption.  Customers performing multi-channel measurements will also experience substantial performance gains in SoundCheck 13 due to the lower memory footprint. This is beneficial for R&D applications with complex sequences, in particular in the telephony industry where long speech signals are widely used. A 64-bit version  allows the program to access more system memory, which permits the use of much longer stimuli and allow large data sets to be opened into the memory list for offline analysis and reporting.

SoundCheck ONE

Author: Vance Dickason. Reprinted from the October 2010 issue of Voice Coil.
VoiceCoil Editor Vance Dickason offers this user report of SoundCheck® ONE – the low cost production line test system from Listen.
Full Article

Soundcard-Based Production Line Loudspeaker Test

Author: Steve Temme
Reprinted from the July 2004 issue of Voice Coil
Steve Temme discusses high-end loudspeaker manufacturer, Peerless’s choice of SoundCheck® as their standard for testing their loudspeakers.

Full Article

 

Article Introduction

Soundcard-Based Production Line Loudspeaker Test
By Steve Temme, Listen Inc.

Quality and reliability are critical factors for success in the audio industry. In today’s global manufacturing environment, product testing is more important than ever, and products built in low-cost countries must be tested to the same standards as those manufactured in the US and Western Europe.

Peerless, one of the world’s leading manufacturers of high-end audio speakers, produces over half a million loudspeakers a year. Peerless belongs to the Danish Sound Technology group (DST), together with Vifa and Scan-Speak. Their headquarters in Karlslunde, Denmark, still produce a majority of the speakers, and the DST manufacturing facilities in China produce a growing number of speakers.

Every single speaker that Peerless manufactures is tested for acoustic quality using SoundCheck®, a soundcard-based electroacoustic test and measurement system. This offers significant advantages over conventional hardware-based systems including fast and simple production line use, low capital expenditure and easy analysis and sharing of test specifications and results (Photo 1).

Peerless has manufactured loudspeakers in Denmark since 1926, and in 1995 the former Vifa-Speak (now DST) established an additional manufacturing facility in Panyu, China. In 2002, Peerless established a second facility in Xiaolan, China. These modern facilities offer cost-effective, high quality manufacturing to supplement the output of the Danish factory.

Peerless conducts 100% quality testing of its products, and tests to exactly the same standards regardless of where the product is manufactured. In the Xiaolan facility, SoundCheck is also used for R&D work where a dedicated SoundCheck system measures frequency response and Thiele/Small parameters in a large 2pi room. With production lines several thousand miles apart, using the same test setup and equipment simplifies quality control (Photo 2). As Carsten Tinggard, the engineer responsible for the test systems, explains, “Our reputation is built on quality and reliability. Therefore, every loudspeaker that Peerless manufactures, either here in Karlslunde, or in China, is 100% tested as it comes off the production line using SoundCheck electroacoustic test software.”

Full Article

HarmonicTrak Algorithm for Fast and Accurate Swept Sine Measurement

Author: Steve Temme

The sine generator in SoundCheck®, operates on the same principles as a traditional swept sine measurement system consisting of a sine generator, voltmeter, tracking filter, and level recorder. The main difference is that it is implemented in the software as a virtual instrument. The SoundCheck sine generator sweeps in discrete steps; each frequency step contains numerous cycles that are synchronously averaged to minimize the effect of background noise. Transducer settling (transient ringing) is also minimized by discarding the first few cycles at each new frequency step and providing a phase continuous transition between frequencies. This provides higher frequency, amplitude, and phase accuracy, as well as excellent noise suppression.  Instead of using a tracking filter that can only measure one harmonic at a time, SoundCheck uses a proprietary FFT-based algorithm, called HarmonicTrakTM, which is equivalent to a parallel bank of individual tracking filters that measure all selected harmonics simultaneously. This parallel analysis technique saves considerable measurement time over the traditional serial analysis method.
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