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 Bose: 6.312 Lecture 24—Air Absorption and Psychoachoustics

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Topics include: air absorption; architectural acoustics; psychoacoustics; digital signals; sampling process; convolution; square waves; all-pass network; experiments with acoustical instrument musicians; RCA experimen...

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 04—Sinusoidal Examples

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Topics include: one-dimensional wave case; sinusoidal case; exponential building block; characteristic impedance of the medium; transmission line equations. Recorded: Sept. 19, 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 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 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 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.

Amar Bose: 6.312 Lecture 25—Psychoacoustics (cont.)

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Topics include: psychoacoustics; localization of sound; Fletcher Munson curve; sensitivity to phase shift; Pinna pressure; sensitivity to distortion; Haas effect; spectral, spatial and temporal aspects of sound; maski...

Amar Bose: 6.312 Lecture 26—Acoustic Wave Technology

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Topics include: distortion; acoustic wave technology; reflections on the process of invention; active noise cancellation; Hilbert transforms; patents and the IPO; demonstration with Bose speaker. Recorded: Dec. 12, 1995.