1. Get Into The Groove Sound Recording and Reproduction Christopher Ercoli Jonathan Hammond

2. Abstract:  Edison Exploratorium Education project Interactive  Why Sound Recording? Schenectady Long history with data storage Widely used

3. 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

4. Display Layout  Historical Artifacts  Interactive Devices  Visual presentation Step by step explanation of:  Function  Theory  Fabrication  Historical and technical significance

5. Goals  Make most interactive and enlightening exhibit possible  Success Criteria Information content Promotes exploration Understandable Universally engaging Promotes future independent interests in the field

6. Mechanical Sound Storage  Historical importance  Key Device Features: Diaphragm size and material Movement of stylus for recording and playback

7. 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

8. Magnetic Sound Storage  Key Device Features: Magnetic media High Frequency Biasing Amplification  Practical applications

9. 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

10. Optical Sound Storage Schneider, Doug. Simaudio Moon Nova CD Player http://www.soundstage.com/revequip/simaudio_no va.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

11. 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

12. Acknowledgements  Dean Traver  Prof. Spinelli  Edison Exploratorium

13. Questions?

14. References  T. Day, "Listening to Musical History," A Century of Recorded Music, 2000, [pp. 1-58]  J. Sterne, "Cultural Origins Of Sound Reproduction," The Audible Past, 2003, [pp. ]  D.L. Morton Jr., "The Life Story of a Technology," Sound Recording, 2004, [pp.55-69]  D. Morton, Off The Record: The Technology And Culture of Sound Recording In America, New Brunswick, NJ: Rutgers University Press, 2000.  S.X. Wang and A.M. Taratorin, Magnetic Information Storage Technology, 1999, [pp. 66-194]  E.M. Williams, Design and Analysis of Magnetoresistive Recording Heads, 2001, [pp.]  E. D. Daniel, C.D. Mee, M.H. Clark, "The First 100 Years," Magnetic Recording, IEEE Press, 1999, [pp. 47-66]  E. D. Daniel and C. D. Mee, Magnetic Recording Technology, ed. New York: McGraw- Hill, 1996.  M. Camras, Magnetic Tape Recording, 1985, [pp. 52-229].  M. Camras, Magnetic Recording Handbook. New York: Van Nostrand Reinhold Company, 1988.  J. Finn. The Complete Handbook of Magnetic Recording. New York: TAB Books, 1996.  K. C. Pohlmann, "Volume 5 The Computer Music and Digital Audio Series," The Compact Disc Handbook 2nd ed., 1992, [pp.]  E. W. Williams, The CD-Rom and Optical Disc Recording Systems, Oxford: Oxford University Press, 1996  S. Lambert and S. Ropiequet, "The New Papyrus" CD ROM, 1986, [pp. 1-45]  M. Clifford, The Complete Compact Disc Player. Englewood Cliffs, NJ: Prentice-Hall Inc, 1987.