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      Series III
      Digital and Analogue Audio Analyzer
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      M1
      Digital and Analogue Audio Analyzer
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      dS-NET 16 x 2 I/O Switcher
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      Digital Serial Interface Adapter
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      Filter for digital amplifier tests
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Applications: R&D

A/D and D/A conversion Automotive Audio Bluetooth Audio Broadcast Computer Audio Education Electro-acoustics Home Entertainment Manufacturing Mobile Audio Music Industry Pro-Audio R&D Semiconductor Service

R&D


All the standard stuff, and then...
There are all the usual audio measurements such as frequency response, THD+N and we can do them with calibrated precision. But what if you want to go beyond them. Way beyond. What if you wanted to plot the probability distribution of the amplitude of digital audio sample points in a radio broadcast advert and compare them with the same broadcast during the news and while playing music? What if you wanted to know the ratio of the odd order harmonics of a sine wave to the even order harmonics? What if you wanted to see the impulse response of a digital reverb? What if you wanted to know how much jitter your AES3 interface can take before it loses lock? What if you wanted your unattended analyzer located at a remote site to email you with measurement results if it detected a multi-tone test signal on a radio link? What if you wanted it to automatically create a hierarchical web site detailing over 3000 measurements of all the inputs routed to all the outputs of a large scale mixing console?

User FFT Detector
dScope Series III user programmed FFT detector showing the ratio of odd to even harmonics

These are all real applications that Prism Sound test equipment has been used for and there are many many more. Some of them can be done out of the box. Some require some automation from within the dScope application. Because the dScope Series III audio analyzer is a soft instrument, it can be used to get those hard-to-get results. Automation can be used in a wide variety of ways to simplify complex processes and to make the difficult possible. The user defined FFT detector can be programmed to return a result that can then be used as any other FFT detector result: it can be swept, limit checked, used in regulation routines, etc. etc.

PS...
If you really did want to see the probability distribution of the amplitude of digital audio sample points in a radio broadcast advert and compare them with the same broadcast during the news and while playing music, here's one we prepared earlier:
Probability distributions of radio broadcasts


Resources

+ LITERATURE
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LOUDSOFT FINE R+D Datasheet
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dScope Series III Flyer - UK version
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dScope Series III Flyer - US version
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LOUDSOFT brochure
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dScope Series III Flyer - Deutsch Version
+ WEBINARS
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Beyond THD+N: How does your power amplifier REALLY perform?
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Bluetooth headset testing
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Loudspeaker System Analysis
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Loudspeaker System Design Part 1: Enclosure Design, High Power Levels and FINEBox
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Loudspeaker System Design Part 2: Crossover Optimization and FINE X-over
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Loudspeaker Transducer Design Part 1: Motor Structures and FINEMotor
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Loudspeaker Transducer Design Part 2: Cones, Domes Soft Parts and FINECone
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Testing Soundcards and Professional Audio Interfaces
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Optimieren Sie die Qualitätsprüfung in der Produktion: Mit der Multi-Tone Messung zum High Speed Audiotest!
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Increase Your Throughput: High Speed Multi-tone Audio Test
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Audio Amplifiers: Burst Distortion and Practical Measurement Workshop
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Evaluating Audio DACs: Performance, Diagnostics and Test Automation
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Audioverstärker - Burst Distorsion und praktische Messanwendungen - ein Workshop!
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FFT Fundamentals
+ PAPERS
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Performance Challenges in Audio Converter Design
+ APPLICATION NOTES
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Audio Multi-tone testing techniques
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Testing to AES17 standards
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FM Stereo Radio MPX with RDS testing
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Encoded Stream Generation
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Rapid Bin Centres Frequency Response Analysis
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AD and DA Converter Testing
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Acoustic Testing with the dScope Series III Audio Analyzer
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Board level digital serial interface testing
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Digital Interface Testing (AES3 AES/EBU S/PDIF)
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Importing WAV files into dScope's FFT analyzer for analysis
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Impulse Response Testing with dScope Series III
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Power Amplifier Testing (including Class-D / Digital Power Amplifiers)
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Testing with Windows Sound Devices
+ SCRIPTS AND AUTOMATION
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Sweep with Delay Script
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Sweep equalisation
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Generator sweep equalisation
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Settings report
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Sweep trace averaging
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Sweep Generator Application
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Filter Measurements Script
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Auto Sequence 2033
+ QUICK STARTS
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Power Amplifier 1% THD+N regulated sweep
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Power Amplifier 1% THD+N regulation
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Power Amplifier Amplitude vs Frequency Sweep
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Bin-centres example
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DA converter test
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Digital Carrier Display
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Digital Interface Tests
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Power Amplifier gain vs frequency sweep
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Power Amplifier Nested THD+N vs Frequency sweep
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Digital non bit-transparent path tests
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Power Amplifier Nth harmonic vs frequency
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Power Amplifier THD+N vs Frequency
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Power Amplifier THD+N vs Power sweep
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Digital bit-transparent path tests

Relevant Products for R&D applications

dScope Series III icon dScope Series III
Analogue & Digital Audio Test System
dScope Series IIIA icon dScope Series IIIA
Analogue Audio Test System
dScope Series IIIA+ icon dScope Series IIIA+
Analogue-Plus Audio Test System
dScope Series IIIE icon dScope Series IIIE
Digital and Analogue Essentials test system
I/O Switcher icon I/O Switcher
dS-NET I/O 16 x 2 matrix switcher
Low Pass Filter icon Low Pass Filter
dS Low Pass Filter
VSIO Adapter icon VSIO Adapter
dS-NET VSIO Digital Interface Adaptor



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  Prism Media Products Limited trading as Spectral Measurement (formerly Prism Sound Test and Measurement); Registered in the UK, Reg. No. 2719511
  Address: Unit 1A, Grovemere House, Lancaster Way Business Park, Ely, Cambridgeshire, CB6 3NW, UK