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MIDI
Quiz 1 - Chapters 1 and 2
52
Engineering
Undergraduate 1
03/02/2006

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Term
What are the three fundamentals of sound?
Definition
Pitch, Amplitude, and Timbre
Term
What is the circuit that emulates Pitch?
Definition
VCO (Voltage Controlled Oscillator)
Term
What is the circuit that emulates Amplitude?
Definition
VCA (Voltage Controlled Amplifier)
Term
What is the circuit that emulates Timbre?
Definition
VCF (Voltage Controlled Filter)
Term
What is another name for Analogue Synthesis?
Definition
Subtractive Synthesis
Term
What is an LFO?
Definition
Low Frequency Oscillator (.1Hz - 10 Hz)
Term
What are the two parameters of an LFO?
Definition
Rate (Speed) and Depth (Amount)
Term
Name the Effect: An LFO applied to a VCO
Definition
Vibrato
Term
Name the Effect: An LFO applied to a VCA
Definition
Tremelo
Term
Name the Effect: An LFO applied to a VCF
Definition
Wah - Wah
Term
What do we call a circuit that modifies our sound over time?
Definition
Envelope Generator
Term
What are the four parameters of an Envelope Generator?
Definition
Attack, Decay, Sustain, and Release
Term
This is the most common type of synthesis.
Definition
Subtractive
Term
The type of synthesis that combines waveforms.
Definition
Additive Synthesis
Term
The type of synthesis that attempts to recreate natural sounds via additive synthesis.
Definition
Resynthesis
Term
The type of synthesis where a simple waveform is modulated by another waveform.
Definition
Frequency Modulation (FM)
Term
Synthesis that causes the phase angle of the waveform to change.
Definition
Phase Distortion Synthesis
Term
This type of synthesis uses the sound of a single note, which is stored as an Oscillator Waveform.
Definition
Wavetable
Term
A type of synthesis that is essentially digital sampling playback.
Definition
Pulse Code Modulation
Term
Synthesis that uses same techniques as digital sampling, but the sampled waveform is divided into small pieces of sound.
Definition
Granular Synthesis
Term
Synthesis type used by the Malstrom in Reason. Essentially a combination of Wavetable and Granular Synthesis.
Definition
Graintable
Term
Type of synthesis that uses powerful DSP algorhythms and equations to simulate the characteristics of an instrument.
Definition
Physical Modeling Synthesis
Term
Type of Synthesis specifically designed to recreate the nuances and characteristics of analogue synthesizers.
Definition
Analog Modeling
Term
What does MIDI stand for?
Definition
Musical Instrument Digital Interface
Term
What is MIDI?
Definition
A machine language NOT Audio
Term
When and where was the first functional MIDI demonstration.
Definition
January 1983 NAMM Show
Term
What type of cable does MIDI use?
Definition
A 5 pin DIN Cable
Term
What is each pin of a MIDI cable used for?
Definition
Pin 5 carries data, Pin 2 is the ground (Defines 0), Pin 4 is a +5v Bias Voltage (Defines 1), and Pins 1 and 3 are not used
Term
Name the MIDI "Governing Body"
Definition
MMA (MIDI Manufacturers Association)
Term
What is the maximum length of a MIDI cable?
Definition
50 ft.
Term
Is MIDI a Serial or Parrallel Transmission format?
Definition
Serial
Term
What is the bit rate of MIDI?
Definition
31.25 KBaud (31,250 bps)
Term
What are the MIDI Ports?
Definition
IN OUT and THRU
Term
When would you turn Local on?
Definition
When you have only one device and you want to hear its sound
Term
What port does a master use?
Definition
MIDI OUT
Term
What port does a slave use?
Definition
MIDI IN
Term
Is it possible for one device to Simotaneously be a Master and a Slave?
Definition
Yes
Term
What is the Function of a MIDI THRU port?
Definition
It acts as a MIDI Mult, it copies the signal coming in the IN port and passes to the next device in the chain
Term
What is the most basic method of MIDI wiring?
Definition
Daisy Chaining
Term
How Many devices can be daisy chained together?
Definition
3 From the Master
Term
How many channels does MIDI have?
Definition
16
Term
Which port is optically isolated to reduce hum and buzz? Why?
Definition
The IN Port, because all slave devices in the chain have something going into the IN port
Term
What do we use to hook up more than three keyboards?
Definition
A MIDI THRU Box
Term
What is Handshaking?
Definition
Using a MIDI THRU Box and giving all Devices the Ability to be a Master, a Slave, or Both
Term
If multiple devices have cables in their OUT port what factor determines which one is the master at any given time?
Definition
The one you are physically playing is the Master
Term
Why are MIDI THRU Boxes good in Live Settings?
Definition
Because it allows you to layer sounds to create fuller sounds in a live environment
Term
Why is a THRU Box Called a MIDI Mult?
Definition
Because all of the Inputs Feed All of The Outputs
Term
What is a MIDI Interface?
Definition
A MIDI THRU Box connected to a computer via a USB cable
Term
The USB cable connecting the Interface to the Computer is known as a _______.
Definition
Dual Serial Connection
Term
In an Interface Setup what do the Inputs feed?
Definition
The Computer
Term
In an Interface Setup what is feeding the Outputs?
Definition
The Computer
Term
What must you do to get the MIDI information to flow from the computer to the Outputs of the THRU Box?
Definition
Arm The Appropriate Track
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