audio 1 final
period in sound
the time for a particle on a medium to make one complete vibrational cycle.
unbalanced cables
un equal impedance through all currents
limiters
volume controls that only come into effect when an audio signal reaches overload. at this point, the limiter suppresses the loudness by clipping off the sounds before they can peak
Resistance
Determines how much current flows for a given voltage. Higher resistance means less current flows
dynamic processor
Device designed to treat an audio signal by changing its dynamics or frequency content.
dynamic range
The difference between the softest and loudest sound a device with accurately process is ________ __________.
harmonic distortion
The production of waveform harmonics that do not exist in the original signal.
impedance
The total opposition to alternating current by an electric circuit
what is a balanced signal mean?
a signal composed of a main signal, opposite signal, and ground signal.
graphic equalizer
a type of fixed-frequency equalizer; consists of sliding controls that boost or attenuate selected frequencies
RMS (root mean squared)
average level
fully normalized
brakes original only goes to where you newly route to
VU meter
checks average
gates
don't let sound in until a desired point.
balanced cables
equal impedance through all currents, ground connection
half normalized
goes to original and to another place
AC power
how power is moved from power plant to house, electrons move every which way
inductance
is induced voltage producing a resistance in an alternating current.
filters
only cut frequencies
source impedance
the impedance that in entering something.
wave length
the length from one crest to another
DC power
Electrons moving in one direction, usually going from a negative potential to a positive potential energy. what the wall outlet is converted to to run our devices
signal to noise ratio
Ratio of magnitude of the analytical signal to the magnitude of the background noise signal
fletcher munson curve
Also know as equal loudness curves, a graph that indicates the average ear sensitivity to different frequencies at a different volume levels SPL.
channel path output
-direct -buss -insert -insert -aux
pro audio operating level
...
voltage
...
what is optimum listening volume
80-85dB
transformer
A device that increases or decreases the voltage of alternating current
current
A movement of electrical charges around a closed path or circuit
compressor
A signal-processing device consisting of an amplifier whose gain decreases automatically as the input signal level increases about a specified threshold.
parametric Equalizer
A type of equalizer that allows an operator to select one particular frequency and boost or lower that frequency.
capacitance
Ability to store a charge.
