Get Into The Groove

Sound Recording and Reproduction

Christopher ErcoliJonathan Hammond

Abstract: Edison Exploratorium

Education project Interactive

Why Sound Recording? Schenectady Long history with

data storage Widely used

Scope of Work Methods Covered:

Mechanical Storage Phonograph, Dictaphone,

Audograph, Vinyl Disk Recording

Magnetic Storage Poulsen’s Wire Recorder,

Magnetophone, General Electric Wire Recorder Model #51, 8-track, Cassette Tape Player

Optical Recording Compact Disc Player

Display Layout

Historical Artifacts Interactive Devices Visual presentation

Step by step explanation of: Function Theory Fabrication Historical and technical significance

Goals Make most interactive and

enlightening exhibit possible Success Criteria

Information content Promotes exploration Understandable Universally engaging Promotes future independent interests in

the field

Mechanical Sound Storage

Historical importance Key Device Features:

Diaphragm size and material

Movement of stylus for recording and playback

Mechanical Storage Display Interactive

Solutions Echophone Campbell’s LP

Player Historical Significance

Phonograph Patent Dictaphone Recorder Wax Cylinders Gray’s Audograph Record Lathe Vertical Record Player

Magnetic Sound Storage Key Device Features:

Magnetic media High Frequency

Biasing Amplification

Practical applications

Magnetic Storage Solutions Interactive Solutions

Magnetic Media Magnetic Media Display

High Frequency Biasing Tape Player & Low Pass Filter

Amplification Laser Motion Interactive Computer Program:

Audacity 1.3 Beta

Developments in Magnetic Recording Media

Evolution from wire to substrate

Changing shape of media Disc Wire Reel

Wire Recorder 8-track Cassette player Answering machines

Optical Sound Storage

Schneider, Doug. Simaudio Moon Nova CD Playerhttp://www.soundstage.com/revequip/

simaudio_nova.htm

Revolutionizing the music industry through noise reduction

Key Device Features: Laser focusing

and photo sensor Polycarbonate

medium with digital code

Tracking system Parallels with

magnetic storage

Conclusions Similarities between storage techniques

Transducing method Stylus or data detection point Tracking method to retrieve data

Effective educational tools Bright, well colored display Clear explanation of theory and practice Parallels between devices

The more the better! Interactive, Interactive, Interactive

User friendly

Acknowledgements

Dean Traver Prof. Spinelli Edison Exploratorium

Questions?

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