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Sound and Acoustics MUEA 474a • E
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What does sound look like? MUEA 474
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Speed of Sound � 343 meters per s
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Sound Wave Frequency 1 second � T
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Sound Wave Amplitude MUEA 474a - 02
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Hearing, Perception & Psychoacousti
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The Outer Ear � Flesh and cartila
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The Inner Ear � Cochlea has spira
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Hearing Frequencies Pitch Timbre or
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The Dyne � The amount of force re
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The Decibel � The Decibel is the
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The Decibel � Decibels always com
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dB SPL Meter MUEA 474a - 02 Sound a
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Common db SPL values dB SPL Sound S
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Hearing Amplitude Our ears do a nat
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Directional Perception MUEA 474a -
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Sound Localization Binaural Imaging
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Interaural Arrival-Time Difference
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Phantom Imaging � Depending on ho
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Perception of Space � Direct Soun
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Amplitude Masking Loud sounds make
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Temporal Masking Just as a bright f
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Sound Wavelength � Due to air mol
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Complex Sound Waves � Pure sine w
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Complex Sound Waves Wave 1 Wave 2 W
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Sound Wave Phase Position � Red w
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Sound Wavelength/Standing Waves �
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Standing Waves in Resonant Bodies
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Resonant Frequency MUEA 474a - 02 S
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Reflection of Sound � Incident so
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Diffraction of Sound MUEA 474a - 02
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Effects Processing � Alters the a
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Time-Based Effects � Delay � Ph
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Comb Filter When short delays are a
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Common Delay Effects � Slap (or T
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Delay Feedback � Sends some of th
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Reverb � Reverberation Effects Pr
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Anechoic Chamber Effects Processing
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Concert Hall Effects Processing
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Chamber/Room Effects Processing
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Stage Effects Processing
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Plate Reverb Effects Processing
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Common Reverb Controls � Pre-Dela
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Dynamics Processors � Compressor
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Threshold Above Threshold Below Thr
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Ratio � Determines how much the i
- Page 94 and 95: Knee � Adjusts how smoothly or ab
- Page 96 and 97: Knee Effects Processing Hard Knee
- Page 98 and 99: Release Time � The time the compr
- Page 100 and 101: Special Compressors � Key Input a
- Page 102 and 103: Ducker � A Compressor whose actio
- Page 104 and 105: Limiter � A compressor whose outp
- Page 106 and 107: Expander � Increases dynamic rang
- Page 108 and 109: Gate (Noise Gate) � An expander s
- Page 110 and 111: Microphones MUIN 277x • Introduct
- Page 112 and 113: Microphone Types - Dynamic � Dyna
- Page 114 and 115: Microphone Types - Dynamic MUIN 277
- Page 116 and 117: Microphone Types - Ribbon � Micro
- Page 118 and 119: Microphone Types - Condenser � Me
- Page 120 and 121: Microphone Types - Condenser MUIN 2
- Page 122 and 123: Microphone Types - Condenser � So
- Page 124 and 125: Diaphragm Size � Yes, size matter
- Page 126 and 127: Microphone Polar Patterns Response
- Page 128 and 129: Bidirectional or “Figure-8” Pat
- Page 130 and 131: Supercardioid Pattern The Supercard
- Page 132 and 133: Boundary Microphone The Boundary Mi
- Page 134 and 135: Microphone Preamp Controls � Trim
- Page 136 and 137: Phantom Power MUIN 277 - 08 Microph
- Page 138 and 139: Microphone Frequency Response Relat
- Page 140 and 141: Microphone Terminology � Self Noi
- Page 142 and 143: Microphone Shockmount Reduces Vibra
- Page 146 and 147: Microphone Placement � Close Mic
- Page 148 and 149: Stereo Microphone Techniques A pair
- Page 150 and 151: Interaural Arrival-Time Difference
- Page 152 and 153: Stereophonic Imaging A Left Speaker
- Page 154 and 155: Stereophonic Imaging A Left Speaker
- Page 156 and 157: Microphone Elevation A B C D = A B
- Page 158 and 159: Spaced Pair Technique D MUIN 277 -
- Page 160 and 161: Coincident (X-Y) Technique MUIN 277
- Page 162 and 163: Blumlein (X-Y) Technique MUIN 277 -
- Page 164 and 165: Mid-Side Pair Technique M/S Microph
- Page 166 and 167: Near-Coincident (ORTF) Technique SC
- Page 168 and 169: Binaural Technique MUIN 277 - 08 Mi
- Page 170 and 171: Intellectual Property & Copyright M
- Page 172 and 173: Copyright © � The Congress shall
- Page 174 and 175: Copyright © � The five "pillars"
- Page 176 and 177: Copyright © � Copyright protecti
- Page 178 and 179: Copyright © � © Copyright Symbo
- Page 180 and 181: Fair Use � Under the fair use doc
- Page 182 and 183: Fair Use Consideration � Quotatio
- Page 184 and 185: Copy Protection � Until very rece
- Page 186 and 187: Copy Protection � Even with the p
- Page 188 and 189: Copy Protection � The cassette ta
- Page 190 and 191: Copy Protection � The Internet ha
- Page 192 and 193: Software License Agreement Cycling
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Software License Agreement 1. Licen
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Digital Rights Management (DRM) �
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DMCA Compliance at USC � Institut
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Please, Don’t Steal Music and Sof
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Analog A continuous, and often grap
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Acoustical to Electrical Conversion
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Digital Audio In Digital recording,
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Sampling Rate � In the Digital Au
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Bit Depth � The measurement of th
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Decimal (base 10) math � Counting
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Counting in Binary Counting in bina
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Digitization Electrical analog wave
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Digitization Electrical analog wave
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Digitization Electrical analog wave
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Quantization Error The difference b
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Common Sample Rates & Bit Depths
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Aliasing If the sampling rate is to
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Digital Levels � Levels in Digita
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Normalizing Normalizing increases t
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Word Clock In order to work correct