Measurements are done with a variety of instruments namely :-
- Prism dScope III Audio Analyzer,
- Agilent 34401A 6.5 digit Precision Digital Multi-meter
- Tektronix Digital Oscilloscope models, TDS784A, TDS3052, TDS7054
- Tektronix CRO model 2246A
- Tektronix Arbitrary Function Generator model AFG310
- Hewlett Packard AC RMS Voltmeter model 3400A
- Leader LDC-824 6.5 digit 500MHz Frequency Counter with Oven Controlled crystal oscillator
References:
- dScope III Specifications (http://prismsound.com/test_measure/products_subs/dscope/dscope_spec.php)
- Handy online Conversion Calculator (http://www.sengpielaudio.com/calculator-db-volt.htm)
- A description of measurements and procedures by Amir from ASR (https://www.audiosciencereview.com/forum/index.php?threads/understanding-audio-measurements.2351/)
- A description of measurements and procedures by Amir from ASR (https://www.audiosciencereview.com/forum/index.php?threads/article-understanding-digital-audio-measurements.10523/)
- Test Methods and Comparison between measurement equipment by the NewAVGuy (https://nwavguy.blogspot.com/2011/02/testing-methods.html)