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27 Cards in this Set
- Front
- Back
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Analog audio |
Any device or process in which audio represents sound by direct analogy
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Coil (voice coil)
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Coil of wire attached to diaphragm, wrapped around a permanent magnet; it moves with the diaphragm, and its interaction with the magnet generates electrical signal
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Diaphragm
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Thin, lightweight membrane in microphone that moves in response to changes in air pressure
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Distortion
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Any undesired alteration or addition to a signal; also a common timbral effect
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Dynamic processors
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Manipulate amplitude (e.g., compressor, gate, amplifier)
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Dynamic range |
Compares maximum operating level before distortion to minimum signal level; expressed in decibels (dB)
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Frequency response
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A graph of a device’s ability to respond to different frequencies (also Bandwidth); expressed in Hz
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Guitar pickup
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Transducer that converts acoustic energy into electrical energy
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IMD
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Intermodulation distortion
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Linear scale
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Frequencies are evenly spaced (octaves are skewed)
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Linearity
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How accurately an audio device's output matches its input; uncolored
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Logarithmic scale
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Octaves are evenly spaced (to match the way we hear); frequencies are spaced logarithmically
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Microphone
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Transducer that converts acoustic energy into electrical energy
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Noise floor
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Level of noise inherent in system or device
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Operational limits
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The parameters that define how well a device performs
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Processor
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Device designed to modify a signal for creative effect
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Record cartridge
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Transducer that converts kinetic energy into electrical energy
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Record lathe
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Transducer that converts electrical energy into kinetic energy
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Signal-to-Noise Ratio (SNR)
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Compares signal level to noise floor (S/N Ratio; SNR); expressed in decibels (dB)
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Speaker
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Transducer that converts electrical energy into acoustic energy
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Tape playback head
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Transducer that converts magnetic energy into electrical energy
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Tape record head
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Transducer that converts electrical energy into magnetic energy
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Temporal processors
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Create one or more time-delayed copies of original signal; "time-based" processors
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THD
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Total harmonic distortion
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Timbral processors
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Manipulate frequency content (e.g. EQ, distortion)
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Transducer
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A device that converts one form of energy to another
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Transparent
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Having an output signal that matches the input signal very closely; not coloring the sound |
