MP100 Final Review Flashcards
Control Room designed and built specifically for _____
Critical listening
Term for device that changes one form of energy to another corresponding form of energy
Transducer
Icon credited with invention of parametric equalisation
George Massenburg
Icon credited with introducing sliding fader
Tom Dowd
First octave of 550 Hz
1100 Hz
Phase measurement
Degrees
Frequency measurement
Hertz (Hz)
How does peak amplitude value measure amplitude?
Measures the maximum positive or negative signal levels from the centre line
How does peak-to-peak amplitude value measure amplitude?
It measures from the maximum positive to the maximum negative negative values of the wave
How does root-mean-square (RMS) value measure amplitude?
It measures the average of the peak amplitude values
Which can cause a phase shift?
Diffraction, reflections, harmonics
Reflections
At 70°F, the wavelength of a 400 Hz waveform is 3.578 feet/cycle. T/F
False
Range of average human hearing
20 Hz - 20 kHz
Frequencies that humans hear the best
1 kHz - 4 kHz
Input mode arms the track allowing the MTR to record signal. T/F
False; Record ready arms the track
Fader function that sends to the multitrack recorder
Source fader
A group (bus) fader falls between the ___ and the ___ in signal flow
MTB, MTR
(Neotek) REV button up, large fader feeds MTB and small fader feeds the SB. T/F
True
(Neotek) Which input does the console NOT have?
Tape/monitor inputs, mic inputs, group signal on the I/O
Tape/monitor inputs
Electrical output of a DI box
Mic level
How a dynamic microphone works
Electromagnetic induction
Options to help decrease rumble
Shock mount, rolloffs
Mic that operates using electrostatic principle
Condenser
Very low frequencies that can be picked up in your recording and cause unwanted noise floor
Rumble
Name of recorder that is designed to record the stereo mix
Mixdown recorder (MDR)
MTR must be in ____ to receive signal
Input
(Neotek) One and only button that deals with outputs of the faders
REV
A time-based processor should be inserted. T/F
False
(Neotek) To get the Mic input to the large fader, press MIC below the S-Curve. T/F
False
(Neotek) Amount of multitrack busses
26
Initialise the MTR-90
Stop button
Phonograph inventor
Thomas Edison
Full normal breaks signal where
On the input and/or the output
(Neotek) Direct out channels
27 and up
Half normal breaks signal where
Input only
Mults copy what kind of signal?
Line
Headphone mix aux send before or after the fader
Before - pre aux send
Every aux send has a corresponding ______
Aux master
List types of time-based processor effects
Chorus, reverb, delay, phaser, flanger
5 sources of reverb
- acoustic reverberation
- echo chamber
- plate reverb
- spring reverb
- digital reverb
Room with no reverb
Anechoic chamber
Delay with 0% feedback
Slapback
(Neotek) 3 output assignments for the console’s talkback microphone
Slate, studio, cue
Another name of headphones or headphone mixes
Cues, cans, foldback
Compressor processor type
Dynamic processor
Compression happens above or below the threshold
Above
1:1 ratio - what happens?
Nothing
Two parameters to create gain reduction
Ratio and threshold
Compression will never meet nor exceed the threshold level. T/F
True
Passband
Frequencies attenuated less than 3 dB on a high/low pass filter
Stopband
Frequencies attenuated more than 3 dB on a high/low pass filter
Turnover
Frequencies at which the signal is attenuated by exactly 3 dB on a high/low pass filter
High-pass and low-pass filter used in conjunction
Band-pass filter
What is missing from a semi-parametric EQ?
Q or bandwidth control
(Neotek) Amount of multitrack busses
26
Mode of MTR-90 for mixing session
All Repro
(Neotek) Buttons to setup for Mixdown mode
Line, Rev
Gating happens above or below the threshold
Below
Range is also known as _____
Ratio, depth
Difference between gate and expander
An expander is making the quiet signal quieter, while gating is getting rid of it all together
Parameter that sets the amount of time for the gate to remain open
Hold
(Neotek) How many different simultaneous headphone mixes can be made?
3 (Cue 1, Cue 2, Aux A/B)
(API) Compressor/Limiter module
225L
(API) Sweep Filter module
215L
(API) Gate/Expander
235L
(API) Mic Pre
212L
(API) Direct Input
205L
(API) DIR function
Sends Small Fader output to the MTR, but it MUST BE PATCHED
(API) Default solo mode
AFL - non-destructive
(API) Default tracking mode: input source that feeds the large fader
Tape
(API) Which EQ offers 7 selectable frequencies per band with “proportional Q”?
550L
(Neotek) Group signal on the I/O is internal console routing using the MTB. T/F
True
(API) Circuitry type
Discrete
(API) Amount of stereo mix busses
3 - STA, STB, STC
(API) Switches that live in the BAM
MTB, STA/B/C, Pan (SM, LG)
Three electrical audio levels
Mic, Line, Speaker
How well we hear certain frequencies compared to others is affected by our listening level (amplitude). What frequencies are affected the most?
Low frequencies
Two types of console layouts
Split monitor and In-line
(API) Button that assigns any selected external source to the control room monitors
C/R PLAY
Tube microphones are the first to go up and last to come down. Explain.
Tubes take awhile before they ‘settle in’ and need to warm up. Tubes are fragile, especially when hot, so they must cool down after the session before moving them.
(Neotek) Mode MTR-90 should be in for tracking session
Sel-Rep
Mode MTR-90 should be in for ‘rehearsal mode’
Individual (with playback tracks in Sel-Rep and rehearsal/record tracks in Input)
(Neotek Reverse Tracking) Which polarity button would invert polarity TO tape?
Polarity button ABOVE the S-curve
(Neotek Reverse Tracking) Which fader should the aux sends split from?
Fader fader
(Neotek Reverse Tracking) Which button would be pressed to insert a properly patched outboard compressor TO tape?
Monitor Insert switch
(MP100 Study Guide) What kind of microphone has the best transient response? -what NOT to choose-
The answer will NOT be condenser. lol
I think it would be ribbon because the ribbon is so thin, so it takes less air pressure to move it
(MP100 Study Guide) Which mic has the best SPL rating?
The answer will be a dynamic mic
Examples of dynamic mics with high SPL
Shure SM-58: 150 dB
Shure SM-7B: 180 dB
Shure Beta 52: 174 dB
Sennheiser MD421: 150 dB
Icon credited with invention of artificial reverb
Bill Putnam
Sibilance
High frequency of certain vocal sounds, particularly s, sh, ch, etc.
What kind of EQ is sibilance?
De-esser
Main difference between compressor and limiter
Ratio amount. Limiters will be at a higher ratio
Rear port delay shift on a microphone
This is on every directional microphone because it is what makes a microphone directional. They modify path length from the back, resulting in cancellation.
Every microphone would be omnidirectional if it doesn’t have this
Rear port delay shift
Proximity effect
Bass frequencies increase in volume when closer to the mic
What causes proximity effect?
This is caused by the rear rejection ports, therefore only affects mics that have cardioid or figure 8 patterns
Type of mics that have rear phase rejection ports
All mics that are directional (not omni)
What type of alcohol is used for rubber rollers on the MTR?
None. You don’t clean the rubber rollers with alcohol
Two ways to view signal amplification on a console
RMS and Peak Amplification
4 types of EQs
- Selectable frequency EQ
- Parametric EQ
- Graphic EQ
- Notch filter
Q on EQ
Slope of the bandwidth
Name the polar patterns and how they function
- Omnidirectional - picks up sound from all directions
- Bidirectional/Figure 8 - responds equally to sound from the front and back, while cancelling sound from the sides
- Unidirectional - cardioid: sensitive front, least sensitive back, supercardioid: sensitive front, some rear sensitivity, hypercardioid: very narrow front response, very responsive back pattern
Anechoic chamber
Designed to not have any reverb and are technically 0 dB because there are no reflections - and if someone spoke while not facing you, you wouldn’t hear them
Definition of frequency
The measurement of the number of cycles that occur in one second of time/ cycles per second; unit is Hz
Speed of sound at 70 degrees F
1130 feet per second
How does temperature change affect velocity?
For each degree increase, velocity increases by 1.1 ft
For each degree decrease, velocity decreases by 1.1 ft
Phase shift and how it may amplify or attenuate
If two identical waveforms are in phase they will amplify, if they are out of phase by 90 degrees, it won’t change at all, and if they are out of phase by 180 degrees, they will cancel each other out.
Parts of waveform envelope
Attack, Decay, Sustain, Release
Attack
Time taken for amplitude to build up to max peak
Decay
Initial decay/attenuation after attack
Sustain
Changes in amplitude as note is held out
Release
Final tail of sound as note is finished
Pressure gradient v Pressure operated microphones
Pressure gradient microphones are directional (cardioid, figure 8)
Pressure operated microphones are omnidirectional
Path to take aux sends from
Monitor path/the path returning from the MTR to be heard
Best operating level from any analog device
Nominal
Masking
Psychoacoustic phenomenon that occurs when loud sounds prevent the ear from hearing softer sounds, aka. loud sounds exceed threshold of hearing, causing quieter sounds to become inaudible to the brain
Temporal masking
Time relationship between loud and soft sounds
Pre-masking
Soft sounds will be masked by a louder sound slightly before the louder sound occurs (up to 40 ms prior)
Post-masking
Soft sounds will be masked by a louder sound slight after the louder sound occurs (up to 200 ms after)
Bus definition
A common signal line