Principal axis: Difference between revisions

Latest revision as of 00:11, 25 February 2009

3-1-135

Principal axis (of a sound source or receiver)

Generally the axis of structural symmetry or the direction of maximum emission or response.

Reference direction serving as an origin for angular co-ordinates used in describing the directional characteristics of the sound source or receiver.

Reference: I.E.C. (modified)

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

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