Tag Archive for: soundcheck new features

AudioConnect 2 Support in SoundCheck

AudioConnect 2 Support is available in SoundCheck version 21 and later.
SoundCheck 21 supports AudioConnect 2TM, Listen’s new compact and high resolution (up to 192 kHz) dual-channel audio interface. AudioConnect 2 is designed for measurements anywhere from the production line to out in the field. With the option to power it via a laptop USB-C port, it is compact, portable, and easy to use. Set-up and configuration is extremely simple and fast with full plug-and-play functionality and TEDS support for automatic identification, configuration and calibration of microphones and accelerometers. AudioConnect 2 has no front panel controls; it is exclusively configured via the SoundCheck software. This provides an added level of test integrity by ensuring that settings cannot be inadvertently adjusted outside of your test configuration.

Watch the video demo of AudioConnect 2 Support

Main SoundCheck Page

Multichannel Spectrum Analyzer in SoundCheck

Multichannel Spectrum Analyzer is available in SoundCheck version 21 and later.
A new multi-channel FFT analyzer replaces SoundCheck’s original single channel spectrum analyzer. This high resolution constant bandwidth linear filter analyzer enables any number of live FFT spectra to be simultaneously viewed in real time on the same graph. It offers many  options including standard and custom windows and various weighting options. Averaging times and resolution are continuously variable and can be user-specified. Average, maximum and minimum levels can be identified, and overload and real time indicators highlight any problematic signals. Channel subtraction, maximum, minimum and power average can be calculated and displayed in real time. This saves screen space and allows direct comparisons when making multiple FFT measurements. Live FFT curves are displayed in the memory list and can be dragged and dropped into any graph for easy comparison to limits and reference curves. SoundCheck’s multichannel FFT and RTA can be viewed simultaneously, either side by side or superimposed on one another. This enables both high resolution spectra and constant percentage bandwidth resolution (eg. 1/12th Octave) measurements to be viewed at the same time. Typical applications include analyzing broadband speech signals while accurately identifying single frequency interference tones, or analyzing intermodulation distortion in the presence of speech or music.

Watch the video demo of Multichannel Spectrum Analyzer

Main SoundCheck Page

Enhanced Loose Particle Detection in SoundCheck

Enhanced Loose Particle Detection is available in SoundCheck version 21 and later.
A new enhanced Loose Particle detection algorithm for measurement of transient distortion is more accurate and offers improved correlation to subjective listening. The new algorithm builds on the success of Listen’s original 2005 algorithm, the first method developed for detecting random transient production line defects such as rattling parts, loose particles and other foreign material in the voice coil gap. Based on the same time-envelope analysis, it introduces advanced algorithmic techniques to better highlight the loose particle defects while minimizing other artifacts. Advanced filtering methods enable the stimulus to be removed from the response so only the defects can be heard. This makes it easy to set limits in line with subjective tests. In addition to identifying distortion caused by foreign material in the voice coil gap of a speaker, it is also valuable for detecting rattling buttons on smart devices and Bluetooth speakers, and identifying buzz, squeak and rattle in automotive audio applications.

Watch the video demo of Enhanced Loose Particle Detection

Main SoundCheck Page

Upgraded Signal Generator and Multimeter in SoundCheck

An Upgraded Signal Generator and Multimeter are available in SoundCheck version 22 and later.
The signal generator and multimeter offer added support for accelerometers and shakers in applications where haptic, or both acoustic and haptic, measurements need to be made. These include fan noise measurements, vibrating car seats, and MEMS microphone/accelerometer combinations. Acceleration units can now be calibrated in g as well as m/s², and offer the option to integrate acceleration to velocity in the multimeter. The signal generator now allows maximum and minimum output levels and frequencies to be set. This  limits the range of the signal path to help prevent accidental equipment damage. These  levels are retained when the configuration is saved or used in a sequence, but levels  can still be manually adjusted within these ranges. Waveforms can now be played back  at their original recorded level with no gain applied. This is useful for listening tests.

Watch the video demo of Upgraded Signal Generator and Multimeter

Main SoundCheck Page

Powerful New Post-Processing Tools in SoundCheck

Powerful New Post-Processing Tools are available in SoundCheck version 22 and later.

New powerful post-processing tools expand SoundCheck’s calculation capabilities and simplify complex applications. These include:

  • Logarithm and Exponent calculation using base 2, 10, or custom values, in addition to the existing base e.
  • Leq (equivalent continuous sound level) versus Time option for use in noise monitoring, communications applications, and many standards.
  •  A new ‘Intersection Modes’ option for greater specificity in the choice of finding intersection points.
  • An option to ignore units in arithmetic and constant post-processing. This facilitates simple mathematical calculations, for example, quickly subtracting a fixed number of dB to correct sound level from the near field to the far field.
  • A ‘Cosine Taper’ custom window in post-processing FFT which allows leading and trailing taper widths to be customized. This is useful for time-windowed measurements.

Watch the video demo of Powerful New Post-Processing Tools

Main SoundCheck Page

New Statistics Module in SoundCheck

A New Statistics Module is available in SoundCheck version 22 and later.
SoundCheck’s statistics module is completely overhauled to make it more powerful and intuitive. A new layout makes data selection easier, and curves, values, and results can now simply be dragged and dropped from the memory list into the statistics editor. A new ‘Reset Statistics’ step allows statistics to be reset during a sequence. This is useful when applying statistical analysis to data from a sequence loop or a fixed number of measurements, as the statistics data and sample count can be automatically cleared, ready for the next measurement once the desired settings have been reached. Enhanced searching, including meta-data, makes it easy to select groups of curves from the memory list, and it is now even possible to specify a frequency range within which to run statistics.

Watch the video demo of the New Statistics Module

 

Main SoundCheck Page

Crest Factor Analysis in SoundCheck

Crest Factor Analysis is available in SoundCheck version 22 and later.
Distortion options now include crest factor analysis,  a technique that measures peak-to-RMS ratio to evaluate impulsive distortion and analyze the dynamic range of real signals. It complements SoundCheck’s unique enhanced Loose Particle algorithm for transient distortion measurement.

Watch the video demo of Crest Factor Analysis

 

Main SoundCheck Page

SoundCheck 17 New Features Video

In this short video, sales engineer Les Quindipan gives a brief overview and demonstration of the new features and functionality of SoundCheck 17, including the new level and cross-correlation trigger, average curve/waveform post-processing functionality, new color palettes, save to MATLAB option, and more.