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Multimedia Audio
Quiz 2 Ch. 4-8
83
Other
Not Applicable
01/17/2006

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Term
What is MIDI?
Definition
Musical Instrument Digital Interface
Term
Is MIDI an Audio Format?
Definition
No, MIDI is simply a machine language or protocol that allows multiple peices of digital gear communicate
Term
Where and When was MIDI formally introduced?
Definition
At the 1983 NAMM Show
Term
Name 3 uses for MIDI?
Definition
Sequencing, Automation, control surfaces, alternate controllers, etc.
Term
What are the basic MIDI messages?
Definition
Note On, Note Off, and Continuous Controller.
Term
What are the MIDI ports?
Definition
MIDI In, MIDI out, and MIDI Through
Term
What problems are inherent in daisy chaining MIDI devices?
Definition
Latency Data Corruption and Time Drift
Term
What is the difference between daisy chaining an d using a MIDI Thru box?
Definition
The MIDI Thru box acts as a router making the signal only have to go through one machine to get from origin to destination thus reducing latency.
Term
What is an alternate controller?
Definition
A controller other than a keyboard that allows a musician to play whatever instrument they are most comfortable with in MIDI so they can make it sound like another instrument.
Term
Why was general MIDI created?
Definition
To eliminate compatibility problems between keyboards and synthesizers made by different manufacturers and furtber to make the protocol universal.
Term
Who developed The Universal Serial Interface which later evolved into MIDI and when was it developed?
Definition
Dave Smith of Sequential Circuits and Ikuturo Kakehashi from Roland in 1981
Term
What type of cable does MIDI use?
Definition
5-pin DIN Cable
Term
What is the new protocol poised to replace MIDI in the future?
Definition
mLAN
Term
What is signal flow?
Definition
The path an electrical signal takes from point A to point B
Term
What is signal routing?
Definition
A method of directing signals to the proper destination
Term
What is an insert effect?
Definition
An effect that is inserted directly into the signal flow therefore recording the sound 100% wet
Term
What types of effects are generally used as insert effects? Why?
Definition
Dynamic effects, because they are all or nothing effects.
Term
What is an auxilary effect?
Definition
Effects that make a copy of the original signal so you have one wet and one dry allowing you to determine the ratio between the two.
Term
What type of effect is generally used as an auxillary effect? Why?
Definition
Time based effects because they are seldom used 100% wet.
Term
What are the three basic sections of a mixing console?
Definition
The jack feild, the I/O strip, and the Master Section
Term
What is the function of a bus on a mixing console?
Definition
It allows you to group any number of tracks together and control them globally by using that bus' controls.
Term
What are the 2 ways effects are generally used?
Definition
Creatively to give us a distinct and original sound, or utilitarian to allow us to fix mistakes in the original recording.
Term
What are the types of Equilizers?
Definition
Graphic, Parametric, Paragraphic, and Fixed Frequency
Term
What function do filters serve?
Definition
They allow one part of an audio signal to pass through while blocking the rest.
Term
What are the filters that are commonly used?
Definition
Low Pass Filter, High Pass Filter, All pass filter, Band Pass Filter, and Notch Filters
Term
What function do dynamic effects serve?
Definition
They boost or cut the amplitude of a signal.
Term
What are the Dynamic Effects?
Definition
Compressors, Limiters, and Expanders.
Term
Which effect is the most overused and least understood?
Definition
Compressor
Term
What are the Modulation Effects?
Definition
Flangers, Choruses and Phasers
Term
What are the basic Frequency based Effects?
Definition
EQ's and Filters (Including Wah-Wah pedals since they are simply band pass filters
Term
What are the time based effects?
Definition
Reverb, and delay.
Term
What are the unique effects?
Definition
Leslie Rotating Speakers, Tremolo, Vocoders, and Talkboxes.
Term
How do dynamic mics work?
Definition
A Coil is suspended in a magnetic field, when that coil moves and electrical charge is created
Term
How do ribbon mics work?
Definition
Same as dynamic mics, but instead of a coil a thin metal ribbon is suspended in the magnetic field.
Term
Describe how condenser mics work.
Definition
Two oppositely charged plates have a pocket of air in between. The SPL's of the sound waves push the plates closer together creating a capacitance.
Term
Which Mic is the most rugged?
Definition
Dynamic
Term
Which Mic is the most fragile?
Definition
Ribbon Mic
Term
Which Mic requires external power?
Definition
Condenser Mic
Term
What do we call a condenser mic thaat uses less than 48 VDC? How does it accomplish this?
Definition
Electret. It comes precharged so the plate does not have to recieve its full charge externally.
Term
What shape does a cardoid Polar Pattern resemble?
Definition
Upside down heart
Term
What shape does a hypercardoid Polar Pattern resemble?
Definition
Mushroom
Term
What shape does a bidirectional mic resemble?
Definition
Figure Eight
Term
What shape does an omnidirectional mic resemble?
Definition
Sphere
Term
How does a shotgun mic work?
Definition
By cancelling out all sound on both sides of it using an interference tube. Its directionality gives it its range.
Term
How does a parabolic mic work?
Definition
By channeling sound to a point reflected off of some kind of dish.
Term
How do boundary mics work?
Definition
They use the vibrations from whatever they are set up on to capture the sound effectively turning whatever its placed on into a microphone
Term
What is a Lavaleir Mic?
Definition
A mic clipped onto a shirt or jacket. Omnidirectional, the "hidden mic"
Term
What is the formula for the Inverse Square Law?
Definition
1/x-squared=Percieved loudness where x = distance
Term
What frequency response would you most want from a microphone?
Definition
As flat as possible
Term
What is the one microphone no audio engineer should ever be without?
Definition
AKG C414 XL
Term
What are Plosives and Sibilance?
Definition
B, P, and S sounds that sound nasty on recordings
Term
What are the four main purposes of preproduction?
Definition
Plan the Project, Obtain Equipment, Hire Neccessary Personell, and Secure the location(s).
Term
What is the purpose of slating?
Definition
It provides video and audio clues to aid with synching the audio and visuals.
Term
What is room tone and why is it recorded?
Definition
The ambient sounds of a location recorded to make ADR sound seamless.
Term
What are the "2 schools of thought" on music tracking?
Definition
Record everything dry and Print Effects to Tape
Term
What are milestones in relation to video games?
Definition
Different stages of production where one must be fully completed before you can move onto the next one. They are Alpha, Beta, and Gold Master.
Term
What is the general order of effects?
Definition
Dynamic-> Frequency-> Modulation-> Time Based
Term
Define Attenuation.
Definition
Cutting a signal
Term
What does pan do?
Definition
Changes spatial relationships between sounds
Term
What does a routing matrix do?
Definition
Directs the channel on which bus to send its output
Term
What is the purpose of gain staging?
Definition
To record all elements of a track at optimal volume.
Term
What are the dynamic effects?
Definition
Compressors, Limiters, Expanders, Gates, Distortion
Term
What are the frequency based effects?
Definition
EQ's and filters
Term
What are the Modulation Effects?
Definition
Flangers, Phasers, Chorus
Term
What do modulation effects use to modify the sound?
Definition
LFO's (Low Frequency Oscillators)
Term
What are the time based effects?
Definition
Reverb and Delay
Term
On Time Based effects what does the feedback knob control?
Definition
The number of reflections
Term
The guy who recorded at the Taj Mahal was using what type of reverb?
Definition
Acoustic Chamber
Term
What is a Tremelo effect?
Definition
Rapid fluctuations in Amplitude
Term
What phenomena is the Leslie Rotating Speaker recreating?
Definition
Doppler Effect
Term
What is a vocoder?
Definition
A device that modulates a carrier (Keyboard) Through the use of the human voice
Term
How do Talkboxes work?
Definition
By playing sound into your mouth and using your mouth as an envelope generator
Term
Who are the two most famous users of the talkbox?
Definition
Peter Frampton and Roger Trout
Term
What three things does the polar pattern of a microphone tell you?
Definition
Physical Area, Reach, and Frequency Response of that Microphone
Term
What is special about multidirectional microphones?
Definition
They allow you to change the polar pattern of the mic
Term
What information is contained within a Video Game's design document?
Definition
Every bit of information that relates to the game
Term
What is a sound map?
Definition
Visual map of all the sounds in a movie. Like a sonic storyboard
Term
What does the term Raw Footage refer to?
Definition
All of the audio and visual material captured on a film shoot
Term
What are Dailies?
Definition
Compilations of the audio and visual elements for all scenes and takes shot that day
Term
What is Foley?
Definition
Sound effects performed in synch with the movie in real time
Term
What are the three general stems?
Definition
SFX, Dialogue and Music
Term
What is an M and E Mix? Why is it done?
Definition
Music and Effects. Mix minus the dialogue. It is done to facilitate international release so the international actors just have to add in the dialogue in their native language
Term
What is an M and E Mix? Why is it done?
Definition
Music and Effects. Mix minus the dialogue. It is done to facilitate international release so the international actors just have to add in the dialogue in their native language
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