Images (15)

portfolio of psycho-acoustic diagrams and photos

Date: April 1943

Inventory Number: WJ0657

Classification: Photographs

Subject:

photographic material, psychology, psycho-acoustics,

Maker: Psycho-Acoustic Laboratory, Harvard University (1940 - 1962)

Maker: Department of Psychology, Harvard University (founded 1934)

Maker: Department of Social Relations, Harvard University (1946 - 1972)

Cultural Region:

United States,

Place of Origin:

Washington, Cambridge,

Dimensions:

0.3 x 71.4 x 49.3 cm (1/8 x 28 1/8 x 19 7/16 in.)

in portfolio: 1 x 50 x 72 cm (3/8 x 19 11/16 x 28 3/8 in.)

Material:

paper, tape, glue,

Accessories: large acid-free portfolio

Description:

Included in this series is a photo of unidentified instrument (possibly a microwave generator), a chart of experimental data, a diagram of bat's sonar, a picture of the Talbot Waterman Basement of Memorial Hall 1942 Vocimetric Room for the analysis of noise shield acoustics and the anaylsis of speech as transduced by various microphones, diagram/picture of jamming equipment (Secret), photos of 2 people modeling headset equipment (RESTRICTED), 3 photos of lab equipment (CONFIDENTIAL), the Washington Exhibition.

Signedunsigned

Inscribedphoto one: Secret/ FIG 47/FIG 48/ MHR-126/P-656/Secret

photo two: centimeters 0-10-20

photo three: pg 50 571/2%???

photo four: EAL-4 HEADSET WHICH INCLUDES/STANDARD CW-49505 HEADPHONE/ UNIT FIG16/ RESTRICTED/ September 5, 1945/ #46937

photo five: CONFIDENTIAL (on top of each photo stamped in red ink)/ Washington Exhibit~April 1943/ Washington

picture of the Talbot Waterman Basement of Memorial Hall 1942: VOCIMETRIC ROOM ...... ANALYSIS OF NOISE SHIELD ACOUSTICS ...... ANALYSIS OF SPEECH AS TRANSDUCED BY VARIOUS MICROPHONES

picture of the Talbot Waterman Basement of Memorial Hall 1942 in blue ink: Talbot Waterman/Basement of/ Memorial Hall/ 1942

Curatorial RemarksNOTE: some things are becoming unglued.