With over 100 combined years of audio measurement experience, our team has created a wealth of technical papers, sequences, articles and other useful information to assist you with your audio test needs. Please browse the collection below, or filter by type of resource.
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In this video, Steve Tatarunis shows where to find, and how to use, a selection of example test sequences included with your SoundCheck installation. These can save considerable amounts of time developing tests as you can start with one of these and modify it to meet your needs – certainly worth checking out if your plan for the next few weeks involves developing some new sequences or figuring out how to test a device!
Steve Tatarunis discusses the various options available to you if you are working from home and don’t have access to a calibrated audio interface, including onboard sound, virtual audio cable, Soundflower and USB speaker/microphone.
In this short video, Cam Ruffle-Deignan explains how you can use the offline menu to experiment with analysis steps using previously-captured data. This can be treated as a scratch pad for testing out different algorithms and step configurations, and these be saved for later use in sequences.
In this short video, Devin Vaillancourt explains ways in which you can optimize your SoundCheck sequences when working from home without full access to your equipment.
In this short video, Les Quindipan explains how to get the demo version of SoundCheck up and running when you don’t have your usual hardware available, outlines its functionality and makes suggestions as to useful things you can do using this version when you don’t have access to your lab.
In this short video, Steve Tatarunis explains how to get your SoundCheck system up and running from home, and what resources are available to help.
TCP/IP control of SoundCheck provides a powerful and expandable command format for controlling and interacting with SoundCheck via any programming language (C#, C++, MATLAB, VB.net, LabVIEW, Python, etc.), on any operating system, either locally or through a network. This is valuable for anyone wishing to control SoundCheck from an external program, e.g. as part of an overall test plan or for factory automation. Using this feature, a single computer can control multiple SoundCheck systems, simplifying production line measurements.
The ability to connect to, and control SoundCheck via TCP/IP first appeared in SoundCheck over 3 years ago, but for version 18, it has been enhanced with the ability to pass test configuration data into the memory list from external programs. This means, for example, that by externally storing parameters such as limits, test levels, and test signals, a single sequence can be used for multiple products, or testing the same product multiple times, simplifying sequence maintenance, and reducing test configuration time.
This application note and accompanying demo scripts walk you through how to use Python to:
- Control a simple loudspeaker test setup, launching SoundCheck and running a sequence
- Run a simple frequency response sequence from a command line interface, creating placeholder curves, values, results and waveforms in the MemoryList and pass values into the placeholders via external control.
- Read a WAV file and use it as a stimulus for performing an FFT Spectrum measurement in SoundCheck
Author: Steve Temme. Reprinted from the Jan 2020 issue of AudioXpress.
This article discusses tools and techniques that are available to accurately measure the audio performance of voice-controlled and connected devices under the many various real-world conditions they may be used. It covers basic acoustic measurements such as frequency and distortion response, which have always been carried out on conventional wired systems, and the more complex real-world tests that apply specifically to voice-activated devices, along withthe techniques and standards that may be used.