The development and application of the intensimetric technique for monitoring the radiative properties of sound fields are discussed. The experimental results of three case studies in the areas of room acoustics, musical acoustics, and noise control prove the new technique to be particularly valuable. Special attention is given to the measurement errors of the newly defined component of sound intensity, called oscillating intensity, and to the reliability of the sound intensity meter used. It is shown that the oscillating intensity is almost insensitive to phase errors.
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