Answers Exam
Subjective Sound - ANSWER>>What the human brain perceives sound to be
Objective Sound - ANSWER>>Sound that is physical and can be measured
Compression - ANSWER>>an area of greater than normal barometric pressure
Rarefacetion - ANSWER>>an area of less than normal barometric pressure
Cycle - ANSWER>>A completion of compression and rarefaction
What are the 7 characteristics of waveform? - ANSWER>>Wavelength, amplitude,
velocity, envelope, frequency, phase, harmonic content
Masking - ANSWER>>The manner in which a loud sound covers up a quieter
sound
Diffraction - ANSWER>>The bending of a wave as it moves around an obstacle or
passes through a narrow opening
What determines if or how a wavelength will diffract around an object? -
ANSWER>>Wavelength
4 parts of envelope - ANSWER>>Attack, Decay, Sustain, Release
What unit of measurement do we use for amplitude? - ANSWER>>Decibels
, What is amplitude? - ANSWER>>how much of something
Peak-to-Peak - ANSWER>>The measurement between the maximum positive and
negative of a wave
Peak amplitude - ANSWER>>the measurement from centerline to the maximum
positive or negative of a wave
RMS (root mean square) - ANSWER>>The average amplitude of a wave over a
given time period
What does a Volume Unit (VU) meter use to measure ampltiude?
(typicaly found on analog consoles) - ANSWER>>RMS
What is 0 dBVU considered? - ANSWER>>Nominal Level
Whats the space above 0 dBVU called? - ANSWER>>Headroom
What is a LED segment meter scale called? - ANSWER>>Full Scale (FS)
What happens if you reach 0dBFS? - ANSWER>>clipping
LED segment meters can measure ____ or _____? - ANSWER>>Peak amplitude or
RMS
Envelope - ANSWER>>4 changes in amplitude over time
Transient - ANSWER>>a short duration, high level peak (the spike on the attack)
Frequency - ANSWER>>the rate at which a device or signal repeats a cycle
(dictates pitch)
What is frequency measured in? - ANSWER>>Hertz (Hz) or cycles per second