Tag: acoustics

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Amar G. Bose: 6.312 Lecture 19—Microphones

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Topics include: microphones; pressure sensitive and pressure-gradient (velocity) microphones; Prof. Ernst A. Guillemin (MIT professor of network theory); Maurice Maeterlink; proximity effect. Recorded: Nov. 14, 1995.

Amar G. Bose: 6.312 Lecture 18—Permanent Magnets

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Topics include: permanent magnets; omni vs. cardioid; first transatlantic cable; Norbert Wiener and first use of network synthesis; Kirchhoff's laws; magnetic materials and Alnico; future of electrical systems in auto...

Amar G. Bose: 6.312 Lecture 13—Radiation Impedance

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Topics include: radiation impedance; spherical wave; piston in an infinite baffle; directivity. Recorded: Oct. 24, 1995.

Amar G. Bose: 6.312 Lecture 06—Standing Wave Reflection

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Topics include: pressure standing wave reflection; simple sources and arrays; radiation impedance. Recorded: Sept. 26, 1995.

Amar Bose: 6.312 Lecture 14—Transducers and Electro-Dynamic Speakers

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Topics include: transducer; magnetic example; equivalent circuit of electro-dynamic speaker. Recorded: Oct. 26, 1995.

Amar G. Bose: 6.312 Lecture 05—Reflection, Standing Waves, Network Synthesis

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Topics include: normal reflection; standing waves; lump parameter approximation; network synthesis. Recorded: Sept. 21, 1995.

Amar G. Bose: 6.312 Lecture 01—Introduction

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Topics include: course mechanics and philosophy; interdisciplinarity of acoustics; centrality of modeling; lump parameters; Maxwell's Equations; experiences with Norbert Wiener; physical acoustics and psychoacoustics....

Amar G. Bose: 6.312 Lecture 08—Energy in Sound Waves

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Topics include: arrays; polar pattern, polar plot; cardioid pattern; energy in sound waves; intensity; power flow. Recorded: Oct. 3, 1995.

Amar Bose: 6.312 Lecture 21—Normal Modes

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Topics include: 3-D rooms; distribution of normal modes; graphic equalizers; class demo with oscilloscope. Recorded: Nov. 21, 1995.

Amar G. Bose: 6.312 Lecture 07—Simple Sources

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Topics include: simple sources; pulsating sphere, volume velocity; scattered wave; near fields; polar pattern and plots. Recorded: Sept. 28, 1995.