Tag: acoustics

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Amar Bose: 6.312 Lecture 22—Mean Free Path and Reverberation

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Topics include: sound in large irregular rooms; mean free path; reverberation time; direct and reverberant fields; effects of environments on music and voice. Recorded: Nov. 28, 1995.

Amar G. Bose: 6.312 Lecture 12—Resistance and Acoustical Circuits

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Topics include: resistance, resistive elements; transformers; anechoic chamber; acoustical circuits; Kirchhoff's laws: KVL and KCL; Helmholtz resonator. Recorded: Oct. 19, 1995.

Amar Bose: 6.312 Lecture 27—Personal Reflections

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Dr. Bose addresses students during the last class of the Fall 1995 semester. He first illustrates an experiment about sound deterioration and normal modes, using multiple re-recordings of a piece of music, a human voi...

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 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 Bose: Lecture 23—Fields and Air Absorption

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Topics include: direct and reverberant fields; air absorption; experiences recording orchestras; localization; stories about patent trials. Recorded: Nov. 30, 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 02—Wave Equations

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Topics include: one-dimensional wave equations; vector wave equations; their derivations; creative development processes to reach established results; comments on feature film "Stand and Deliver". Recorded: Sept. 12, ...

Amar G. Bose: 6.312 Lecture 03—Waves, Vectors, Networks

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Topics include: vector wave equation derivation (cont.); timeline waves; complex vectors; waves and networks. Recorded: Sept. 14, 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.