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74 Cards in this Set
- Front
- Back
A transducer is
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A device that converts one form of energy into another. The transducers we use in recording are
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For a substance to act as as a sound medium it needs
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Mass Elasticity and Inerita
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What are the three types of EQ's
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Graphic, Semi-parametric, and Parametric
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Graphic EQ's
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Control the amplitude. The Frequency band is fixed.
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Definition of frequency response
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Analysis of what frequencies are generated by our source is frequency response.
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Definition of RTA
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Real time analyzer.
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Knee Frequency
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The selected frequency in shelving EQ's.
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Center Frequency
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The selected frequency on a peaking equalizer. The frequency that is being most affected by the amount of gain or attenuation you apply to it.
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Jimmy's 4 Button of Love
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Machine
Program Bank Number |
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Peaking EQ
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The frequency selected will be the frequency most affected. Whatever the gain value, the selected frequency will be the only frequency achieving that value.
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Shelving EQ
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Refers to a rise or drop in freq at a selected frequency. .
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Fully Normalled
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A cable inserted into either the top or bottom jack breaks the internal connection and signal now flows through the patch cable.
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Half Normalled
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Plugging a patch cable into the top jack does no break the normal, but instead splits it.
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Non Normal
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This configuration consist of only input and output points for devices not normally connected to the console. No signal is going from the top to bottom jacks.
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Mic Line
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The outputs of the microphone before the preamp.
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Channel Mic
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Input to the mic preamp
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MTR return
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Output of each track from the MTR
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Channel Line Input
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Input to the line position of the mic/line switch
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Channel Insert Send
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Pre or post EQ signal from the I/O
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Channel Insert Returns
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Signal enters the I/O either pre or post EQ
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Group Outputs
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Output of each individual buss in the routing matrix
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MTR Sends
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Input to each track of the MTR
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Monitor Input
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Input to the monitor fader/monitor path
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The 3 types of Time Based Processors
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Delay, Reverb, and Harmonizers.
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Patch point commonly used for Time Based Processors
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Aux send and return
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The HAAS effect
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When 2 different sounds arrive at a source
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3 True Analog Reverb
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Chamber, Plate, and Spring
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Modulation
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Modulation is the changing of signal through a variety of ways.
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LFO
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Low Frequency Oscillator.
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Slapback
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Single repeat of a signal with a delay time of above 35 ms. Used for thickening vocal or instrumental sounds.
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The HAAS effect
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When 2 different sounds arrive at a source
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3 True Analog Reverb
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Chamber, Plate, and Spring
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Modulation
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Modulation is the changing of signal through a variety of ways.
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LFO
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Low Frequency Oscillator.
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Slapback
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Single repeat of a signal with a delay time of above 35 ms. Used for thickening vocal or instrumental sounds.
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Phase Shifter
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When the original sound is combined with the delay sound shifting the time of delayed on the two signals in and out of phase causing a swooshy sound.
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Flange
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Similar to the phase shifter except that it varies the signals more in pitch adding more color to the sond and feeding the output back through the processor to add thickness.
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Gate Controls
Attack |
How quickly the gate responds, how many milliseconds it takes for the gate to stop attenuating the signal.
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Gate Controls
Release |
At some point in the decay of the signal the gate closes again,. The release is how fast in m/s the gate closes.
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Gate Controls
Range |
How much the signal is attenuated below the threshold.
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Compressor Controls
Attack |
How quickly does the processor responds.
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Compressor Controls
Release |
How quickly the compressor lets go of the signal once it have decayed past the threshold.
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Compressor Controls
Output |
Compensation for attenuated signals.
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What patch points are used for dynamic processors
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Insert send and return
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A compressor turns into a limiter
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When the ratio on a compressor is more than 8:1
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Expander
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An expander expands the dynamic range by making the softer sounds virtually disappear.
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Saturation of Analog Tape
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IT's the art of recording a signal too strong in the headroom of the dynamic range and is generally the reason why people like analog recording.
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Dynamic Range in an analog system
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Max Level
Headroom Nominal Level Signal to Noise ratio Noise Floor |
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The area between the nominal operating level and the noise floor.
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Signal-to-Noise ratio
-------- Clipping +26 ------- Headroom ------- Nominal Operating Level +4db ------ *Signal to Noise Ratio* -------- Noise floor -50db ------- |
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Where is the nominal operating level in the dynamic range?
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Clipping +26db
----- Headroom ------ Nominal Level +4db ------ Signal to noise ration ----- Noise Floor -50db |
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At what decibel are you clipping in the dynamic range of an audio recording?
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+26db
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PZM
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Pressure Zone MIcrophone
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Speaker Level
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+30db
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FET
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Field Effect Transistor
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Analog Record Setting
Sel/Rep |
Record and Erase at same time
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Analog Record Setting
Repro |
AKA Reproduction
Playback |
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Notch Filter
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Used to locate problem effects
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Gain Reduction on a expander uses what know
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Ratio
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Proximity Effect
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A microphone tenancy to have more low frequency response when close to the source.
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When two signals with similar frequency are played @ the same time a conflict will occur where one signal is less audible than another. What is it called?
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Frequency Masking
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In record mode there are 2 path's, with 3 sections each. Name them.
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Path: Channel
Source: El Guapo Destination: MTR Path: Monitor Source: MTR Destination: Speakers |
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Two signals that are 180 degrees out of phase will
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Cancel each other out
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A microphones tendancy to have more low frequency response when closer to the source
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Proximity Effect
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Off axis coloration
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When a sound hits a mic at any other place than 0 degrees
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Put the following in order:
Speakers, Mbox, Pre amp, MIxer,, Group out, and Microphone. |
MIcrophone
Pre amp Mixer Group Out Mbox Speakers |
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The slope is -12db per octave. Your slope starts at 800hz and you want to find out how much your signal will be attenuated at 100hz.
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You first find out how many octaves are between 100hz and 800hz.
1 2 3 100hz -200hz-400hz -800hz Then you multiply the number of octaves by the slope, which is 12. 12 x3 ----- 36 + 3 db -39db |
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Lets mid range frequencies through
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Band Pass Filter
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The best place to place a mic is the
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Compression Peak
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The lowest point of the wave form
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Refraction Trough
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Which button on an analog transport erases
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Input
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A specific way of analyzing what frequencies are attenuated when there is a phase conflict
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Comb Filtering
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Output of the routing matrix
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Group Buss
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Small Fader feeds the
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routing matrix
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Frequency
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How fast a source repeats within postive and negative amplitude
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