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FUNDAMENTALS OF ACOUSTICS 17

If waves radiated outward from a sound source are symmetric and uniform in all direction, the source is an isotropic radiator.The simplest isotropic radiator is a pulsating sphere, which is a uniform and homogeneous sphere whose surface expands and contracts radially and sinusoidally with time.If

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FUNDAMENTALS OF ACOUSTICS 17

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    1. FUNDAMENTALS OF ACOUSTICS (17) RADIATION OF ACOUSTICS WAVES

    2. If waves radiated outward from a sound source are symmetric and uniform in all direction, the source is an isotropic radiator. The simplest isotropic radiator is a pulsating sphere, which is a uniform and homogeneous sphere whose surface expands and contracts radially and sinusoidally with time. If the dimensions of a radiator are small compared with the wavelength of the sound radiated, the radiator can be approximated by a pulsating sphere.

    3. 4-1 Radiation impedance

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