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Introduction to Sound & Music Hardware/Software

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Ben Johansen

on 24 October 2012

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Transcript of Introduction to Sound & Music Hardware/Software

The Basics of Audio bit depth
resolution (range of values) a converter is capable of using to measure amplitude
expressed using binary numbers (2 to the power of the number of bits in the system)
4-bit = 16 values
8-bit = 256 values
12-bit = 4,096 values
16-bit = 65,536 values
24-bit = 16,777,216 values sample rate bit depth time quantization vs. how a
vinyl record works http://www.vinylrecorder.com/stereo.html Analog Digital by Ben Johansen How does
sound work? TIP: great reference material can be found on some manufacturers' websites Direct Injection Boxes
(a.k.a. = DI Box or Direct Box) http://whirlwindusa.com/support/tech-articles/direct-box-can-be-di-spensible/ impedence http://www.deltamedia.com/resource/impedance.html http://www.lhup.edu/~dsimanek/scenario/newton.swf http://paws.kettering.edu/~drussell/Demos/waves-intro/waves-intro.html volume sample rate is like the frames of a film, but the ear is not as easily tricked as the eyes Signal Levels mic level
instrument level
line level
speaker level http://youtu.be/QYVk3TJfKOQ Shure, Whirlwind, Sweetwater, etc. http://www.shure.com/americas/how-to/microphone-techniques-live-sound-reinforcement preamp microphones TYPES: Shepard's Tone
aural illusion http://youtu.be/ugriWSmRxcM Binaural virtual haircut (you must listen while wearing headphones) http://tiny.cc/18yvt OSHA standards
(Occupational Safety and Health Administration)
exposure to noise above 85dB for more than 8 hours requires the use of hearing protection
see URL: http://tiny.cc/y8gdw PROTECT
HEARING http://www.baylor.edu/csd/index.php?id=50608 Musician's Ear Plugs http://abstrusegoose.com/strips/rube_goldberg_large.PNG anatomy of a typical phone conversation dynamic condenser ribbon contact
(piezo) WAVEFORM
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