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FOR IMMEDIATE RELEASE: November 16, 2006
Contact: Zarina Bhimani, Listen, Inc., 580 Harrison Avenue,
Suite 2A, Boston, MA 02118
Phone: (617) 556-4104 email: zbhimani@listeninc.com
Listen announces the release of SoundCheckTM version 7.0 – a new version of the popular software based audio test system for R&D applications and production line quality control. This new version offers many additional and improved features including multichannel analysis, a new sequence wizard to simplify test set-up for first-time users, an improved loose particle algorithm, an improved multitone stimulus and new post-processing algorithms.
Unlike other audio test systems, SoundCheck features an unlimited number of analog/digital I/O channels that can be used simultaneously, provided that you have enough input devices and computer memory. This enables testing of multichannel devices such as pro audio mixers, and allows fast production testing of surround sound electronics as all channels can be measured simultaneously. It is also beneficial for stereo headset testing as stereo acoustics and impedance can be measured at the same time. In addition, it reduces the test-time for batch mode testing, which is widely used for production testing of devices such as microphones.
Multichannel capability also enables you to play and record on different devices (soundcards, or data acquisition devices). This enables a NI data acquisition card (such as the PCI/PXI 4461) to be used in conjunction with a soundcard, combining the flexibility of a Windows multimedia environment with the high accuracy of the NI hardware. In this configuration, SoundCheck is an ideal solution for testing audio electronics and multimedia devices such as IP phones, MP3 players and Bluetooth headphones
The new sequence wizard is designed to get new users up and running quickly. It walks the user through the process of setting up a simple test with easy-to-follow instruction screens that prompt you to select and calibrate input devices, choose your test signals, carry out the test, analyze the data and display the results. Set-up wizards are included for commonly tested devices including loudspeakers, headphones (including Bluetooth), telephones, microphones and hearing aids. Tests that are created through the sequence wizard can be easily expanded and modified through the sequence editor.
Additional enhancements include many improved algorithms. The new loose particle algorithm is less susceptible to background noise and is simpler to set up. New post-processing algorithms allow resampling and sampling rate correction for digital measurements. This allows compensation for sampling rate shifts, commonly found in low-cost consumer products (e.g. MP3 players, Bluetooth headsets and IP phones. Finally, improved FFT and inverse FFT algorithms allow you to easily post-process in either the time or the frequency domain, for example, when combining far-field and near-field measurements. This is particularly useful for examining the impulse response of a spliced loudspeaker measurement.
A free demo version of SoundCheck 7.0 can be obtained from the Listen website www.listeninc.com.
Test showing frequency response (magnitude and phase), impulse response and distortion measured simultaneously on 4 channels of a mixing board. Download high resolution picture (right click and "save target as")
About Listen, Inc.
Listen, Inc. (www.listeninc.com) is a world-leading developer of audio test and measurement software tools and complete measurement systems for R&D and production test of electroacoustic products including loudspeakers, microphones, handsets, headsets, telephones, cell phones, VoIP telephony products, and hearing aids. Formed in 1995, Listen’s electroacoustic test systems have become the standard test platform at many of the world’s largest loudspeaker manufacturers.
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