Chapter 12. Meeting 12, Discussion and Workshop12.1. Announcements• Quiz next Thursday 12.2. Reading: Bimber• Bimber, B. 1990. “Karl Marx and the Three Faces of Technological Determinism.” Social Studies of Science 20(2): 333-351.• What is technological determinism? • Bimber describes three accounts of technological determinism: Norm-Based Accounts, Logical Sequence Accounts, Unintended Consequences. How do these accounts differ? • For Bimber, which of the three acounts meets the requirements technological determinism, and why?• What are some of examples of deterministic ideas about technology in common discourse? • Does the history of music technology support notions of technological determinism? 12.3. Hardware Hacking: Motor as Dynamo• Using a motor as a dynamo to drive an LED 26712.4. Hardware Hacking: Dynamo as Oscillator• A Telharmonium Lite (Collins 2009, p. 20) 26812.5. Hardware Hacking: Humbuckers• Exploring the sound of motors, piano strings, and portable electronics 26912.6. Hardware Hacking: Simple Oscillator• The Hex Schmitt Trigger digital logic chip: six inverters on a chip 270• Given an input of 1 (9 volts) output 0 (0 volts) and vica versa • The resistor permits feedback, causing alternation between 9 and 0 volts and producing a squarish sound wave • 74C14 Pins © Routledge. All rights reserved. This content is excluded from our Creative Commons license. For more information, see http://ocw.mit.edu/fairuse. • Using a resistor to create feedback oscillation 271© Routledge. All rights reserved. This content is excluded from our Creative Commons license. For more information, see http://ocw.mit.edu/fairuse. • Breadboard27212.7. Hardware Hacking: Photocell Controlled Oscillator• Varying resistance changes the frequency of oscillation 273• A photoresistor decreases resistance with more light, increases resistance with less light • Varying the capacitor sets the range of oscillation • Breadboard27412.8. Hardware Hacking: Oscillator through Diode• Pasing the signal through a diode alters the timbre 275• Breadboard27612.9. Hardware Hacking: Oscillator with Low Pass Filter• A basic low pass filter using a photoresistor and a capacitor © Routledge. All rights reserved. This content is excluded from our Creative Commons license. For more information, see http://ocw.mit.edu/fairuse. • Breadboard277278MIT OpenCourseWare http://ocw.mit.edu 21M.380 Music and Technology (Contemporary History and Aesthetics) Fall 2009 For information about citing these materials or our Terms of Use, visit:
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