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Case Studies

Prism Sound's Queen's Award For Enterprise: International Trade 2011

Audio Test and Measurement Applications

Manufacturing

Designed for faster more flexible testing
The dScope Series III is the fastest and most powerful audio test solution available for production line / QC testing applications. With the capacity to measure over 100 audio parameters simultaneously, and with advanced FFT-based analysis tools including multi-tone testing and impulse response analysis, dScope Series III helps you increase your throughput and ensure that you are shipping fault-free product.

MP3 pass/fail screenshot

Screenshot of a dScope Series III multi-tone test for an MP3 player

Event manager
In addition, dScope Series III incorporates a unique set of features in audio test: dScope's 'Event Manager' application is capable of analyzing soak test measurements continuously, over indefinite time periods, checking for intermittent faults that could be missed by periodic or end-of-soak inspection. Any limit breaches are recorded to a log file complete with details of the time and date of the failure, the nature of the fault and the numerical values of the measurement results. On detection of any intermittent faults, the system can take arbitrary sequences of action, which could include sending an email to the Production Manager or running an automatic sequence of diagnostic tests and creating a detailed test report, for example.

Event manager screenshot

dScope Series III screenshot showing the Event Manager logging
intermittent failures on multiple parameters simultaneously

Flexible automation
The dScope Series III system offers a range of automation options, allowing you to seamlessly integrate the system into your production facility no matter how large or small:

The software can be used manually, with one-button switching between different test files and on-screen flagging of limit breaches
Self-contained automation applications can be written in VBScript, a powerful scripting language that allows the user to create automated test sequences, limit checking, pass / fail reporting, integration with databases or spreadsheets for storing results, and custom user interfaces / dialogues to be created to control the flow of testing or to customise the level of information shown to the test operator.
For integration within larger-scale automation environments, dScope includes an ActiveX / COM interface that enables the system to be controlled by external applications (and vice-versa), allowing automation executives such as LabVIEW, TestStand, Delphi, Python, C#, etc to run test sequences and check results.
dScope's automation tools also enable integration of other applications and control / measurement systems, including barcode scanners, external instruments for non-audio measurements, PLCs, production-line hardware etc.

Applications engineering solutions
Automation solutions can be delivered by Prism Sound as part of a turn-key package, custom made for your specific needs and ready to operate out-of-the-box. Our experienced team of expert Applications Engineers has a long history of delivering automated solutions to many of the world's leading audio brands, some of whom are listed in our client references. No matter how big or small your manufacturing operation, dScope allows you to measure faster and saves you money.

Scripting screen

Resources

+	LITERATURE
	dScope Series III Flyer - UK version
	dScope Series III Flyer - US version
	LOUDSOFT brochure
	dScope Series III Flyer - Deutsche Version

+	WEBINARS
	Beyond THD+N: How does your power amplifier REALLY perform?
	Increase Your Throughput: High Speed Multi-tone Audio Test
	Audio Amplifiers: Burst Distortion and Practical Measurement Workshop

+	PAPERS
	Sonic Differences between identical CDs

+	APPLICATION NOTES
	Audio Multi-tone testing techniques
	FM Stereo Radio MPX with RDS testing
	Encoded Stream Generation
	Rapid Bin Centres Frequency Response Analysis
	MP3 Player Testing With dScope Series III
	Production line QC testing
	Board level digital serial interface testing
	Impulse Response Testing with dScope Series III
	Power Amplifier Testing (including Class-D / Digital Power Amplifiers)
	FM stereo multiplex (MPX) with RDS testing Notes

+	CASE STUDIES
	Audio testing on Meridian's F80 production line
	Sonifex streamlines its UK manufacturing operation with dScope Series III

+	SCRIPTS AND AUTOMATION
	MP3 player test
	I/O Control script
	Settings report
	Sweep Generator Application
	Auto Sequence

+	QUICK STARTS
	Bin-centres example
	Digital non bit-transparent path tests
	Digital bit-transparent path tests

Relevant Products for Manufacturing applications

	AutoTestSQL Automated Test Executive
	dScope Series III Analogue & Digital Audio Test System
	dScope Series IIIA Analogue Audio Test System
	dScope Series IIIA+ Analogue-Plus Audio Test System
	dScope Series IIIE Digital and Analogue Essentials test system
	I/O Switcher dS-NET I/O 16 x 2 matrix switcher
	LOUDSOFT FINE QC Quality Control system for loudspeaker testing
	Low Pass Filter dS Low Pass Filter
	VSIO Adapter dS-NET VSIO Digital Interface Adaptor

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