REL #28 CMU200 as Audio Meter
The Rohde & Schwarz CMU200 is quite an amazing audio meter, supporting measurement of THD and noise, multitone frequency response, and SINAD.
This video talks about the B-41 audio board option for the CMU, discusses the measurement techniques and shows actual measuring experiments.
00:51 Three measurement modes: AF, RF receiver tests, and RF transmitter tests
02:35 The CMU audio measurements functions
06:36 Different types of distortion
08:11 Required hard- and software options
11:38 A closer look at the CMU-B41 module
15:38 Audio generator specs
17:13 Analyzer & Generator: theory
21:02 Analyzer & Generator: experiments
27:40 Multitone: theory
29:29 Multitone: experiments
35:03 THD: theory
36:31 THD: experiments
46:57 SINAD: theory
52:12 SINAD: experiments
1:05:19 Conclusions