THE ACOUSTIC WORLD

Sound + Technology:  Where do we start?

Review...

The field of anthropology defines technology as:

The body of knowledge available to a society that is of use in fashioning implements, practicing manual arts and skills, and extracting or collecting materials.

The Technology Curve

–from The Craft of Controlling Sound,

Dr. Stephen Solum

Use of technology is not a true/false, but to what degree.

There is no "best place to be" on the Technology Curve– What's the best tool for the job?

Aeolian Harp

after Aeolus, god of the wind

Hydraulis

Greeks, 2nd century B.C.

Ktesibios, inventor

("tsibius")

Pneumatics:

The branch of physics or technology concerned with the mechanical properties of gases.

Acoustics

Pythagoras

5th-6th century B.C.

Discovered numerical ratios corresponding to intervals of the musical scale. He developed this into a theory he called "harmony of the spheres..."

"Harmony of the World" (1806), Ebenezer Sibly

–"Dictionary of Phrase and Fable", E. Cobham Brewer

Pythagoras

5th-6th century B.C.

Discovered numerical ratios corresponding to intervals of the musical scale. He developed this into a theory he called "harmony of the spheres..."

"Harmony of the World" (1806), Ebenezer Sibly

Pythagoras– having ascertained that the pitch of notes depends on the rapidity of vibrations, and also that the planets move at different rates of motion– concluded that the sounds made by their motion must vary according to their different rates of motion.  As all things in nature are harmoniously made, the different sounds must harmonise, and the combination he called the “harmony of the spheres.”

Harry Partch

1901-1974

California/University of Wisconsin/hobo

Published 1863

Phonautograph–1857

Édouard-Léon Scott de Martinville

  • Discovered in 2008

  • To study acoustics

  • Recording only– No playback!

Optical playback & restoration by David Giovannoni (FirstSounds.org)

Phonomotor–1878

Thomas Edison

  • Also called the "Vocal Engine"

  • To measure the mechanical force of sound

  • Converted sound energy (air pressure) into rotary motion

Acoustic Amplification?

well, sort of...

Stroh Violin

Stroh Cellos

Victor Auxetophone (1898)

Compressed Air Amplification

Have you heard the auxetophone?  It is to be hoped not.  All Mr. Parsons' turbines will be wanted to take long-suffering humanity out of earshot of his diabolical invention.

Acoustic Radar!

The Foundations of Tonality

The Acoustic World

By Brian

The Acoustic World

MCTC SNDA 1360

  • 575
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