Chapter 19

Objective measurement and subjective evaluations

Description of objective tests. Discussion of relevance. Assessment of results. Subjective views of close-field monitoring. Analysis of the NS10M. Intermodulation distortion.

The history of audio has had a frustrating tendency to produce ‘undefinables’ in terms of quality differences. The hi-fi press has invented a whole vocabulary of adjectives to describe sound qualities, but without objective verification there is no way to know if the terms mean the same thing to different people, or not. Spaciousness is one obvious example. In the stereo reproduction of music, spaciousness is a highly valued attribute, yet no unit of measurement exists for its quantification. Transparency is ...

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