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Sound Design for the Electronic Musician (Class) > Week 3 - Control Signals in Reason's Subtractor > Flashcards

Week 3 - Control Signals in Reason's Subtractor Flashcards

1
Q

Which of the following is NOT an example of a fixed modulation routing in Reason?
1. Amplifier envelope
2. Filter envelope
3. LFO
4. None of the above

A
  1. LFO
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2
Q

Which of the following controls the Filter Cutoff frequency?
1. Filter envelope sustain level
2. Filter envelope attack time
3. Filter envelope release time
4. Filter envelope decay time

A
  1. Filter envelope sustain level
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3
Q

Which of the following settings is necessary to create an Attack/Decay (AD)-type envelope?
1. Set a slow attack time
2. Set the sustain level to 0
3. Set a fast attack time
4. Set a low filter cutoff frequency

A
  1. Set the sustain level to 0
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4
Q

Which of the following will help produce a clearly defined filter sweep?
1. A high sustain level on the filter envelope
2. A fast LFO rate
3. Quick attack time on the filter envelope
4. High filter resonance level

A
  1. High filter resonance level
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5
Q

True or False: Timed segments in an envelope generator are usually tempo dependent.

A

False

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6
Q

How is keyboard tracking used in Subtractor?
1. To control LFO rate
2. To control the attack time of an envelope
3. To control filter cutoff
4. To scale velocity

A
  1. To control filter cutoff
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7
Q

Which of the following is a realtime control source?
1. Mod wheel
2. LFO
3. Amplifier envelope
4. Filter envelope

A
  1. Mod wheel
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8
Q

Which of the following is not a realtime control destination?
1. Mod wheel
2. LFO
3. Amplifier envelope
4. Filter envelope

A
  1. Mod wheel
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9
Q

True or False: Filter envelope amount is a destination for realtime control sources.

A

True

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10
Q

Which of the following would be the best LFO waveform for producing a vibrato effect?
1. Triangle
2. Square
3. Sawtooth
4. Random

A
  1. Triangle
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11
Q

Which of the following would be the best LFO waveform for producing a trill effect?
1. Triangle
2. Square
3. Sawtooth
4. Random

A
  1. Square
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12
Q

Which of the following is a bipolar control source?
1. Envelope generator
2. Mod wheel
3. Velocity
4. LFO

A
  1. LFO
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13
Q

What realtime control source most often controls the depth or amount of vibrato?
1. Velocity
2. Portamento
3. Mod wheel
4. Envelope generator

A
  1. Mod wheel
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14
Q

In Reason, which of the following can be synchronized to a tempo?
1. Envelope attack time
2. Envelope decay time
3. LFO rate
4. Portamento

A
  1. LFO rate
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15
Q

Which of the following could be used to soften the attack of a note?
1. LFO
2. Envelope generator
3. Mod wheel
4. Aftertouch

A
  1. Envelope generator
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16
Q

What is the primary purpose of a step sequencer?

A

Step sequencers trigger notes and control note values in a timed and sequential order.

17
Q

In the Subtractor synthesizer, what are 2 fixed modulation routings on the control panel?

A
  1. Filter Envelope
  2. Amp Envelope
18
Q

What is a fixed modulation modulation routing?

A

The source is hard-wired to the destination and it can’t be changed.

19
Q

When the release time is set to 0, what are the characteristics of the ending of the note shape?

A

A Release time of 0 stops output immediately.

20
Q

When the Attack and Decay times are set to 0, what are the characteristics of the sound shape?

A

When Attack and Decay times are set to 0, there is an immediate output when a note begins.

21
Q

When the Decay time is increased from 0, what happens to the shape of the sound?

A

With a short decay time, there is a strong initial attack.

22
Q

What happens to the shape of a sound when the Release time is increased?

A

As we set the Release time increasingly longer, the notes begin to sustain over each other, and the sound becomes blurry and muddy.

23
Q

What is the one setting in an envelope that needs to be increased in an Attack/Decay envelope setting?

A

Decay.

24
Q

What is the biggest difference between an Amp Envelope and a Filter Envleope?

A

Amp Envelopes always starts and ends with an output of 0.
Filter Envelopes control how far from the user-set Filter Cutoff Frequency we increase or decrease.

25
Q

What are the 2 controls in the Filter Envelope in Subtractor that controls the level of the filter cutoff?

A

The Sustain level and the Filter Envelope Amount both control the level of the filter cutoff. As each is set lower, higher frequencies are filtered out using a low-pass filter.

26
Q

What happens to an envelope signal when inverted?

A

When the envelope is inverted, increasing the Sustain level has the opposite effect by lowering the cutoff frequency.

27
Q

What is the difference between track-based automation and timed segments in an envelope generator?

A

Track-based automation will always follow the tempo of a sequence.
Timed segments of an envelope generator are set independently of tempo.

28
Q

True or False: The note number provided in a MIDI keyboard can be used as a routing source signal.

A

True
Note number can be used as a source of control for any destination in a modulation routing.

29
Q

What is the most common use of keyboard tracking?

A

The most common use of keyboard tracking is to control filter cutoff.

30
Q

What happens to a filter when the resonance is boosted?

A

Resonance boosts frequencies at and near the cutoff.

31
Q

What happens to the filter when the cutoff frequency is controller by a note number?

A

When the cutoff frequency is totally controlled by note number, the filter will actually be removing frequencies near the fundamental of these lower notes.

31
Q

What does the Kbd control do in Subtractor?

A

The Kbd control in Subtractor’s filter section controls the amount that note number will affect the filter cutoff frequency.

32
Q

What are the 2 types of ways modulation signals can control a module?

A
  1. Programmed sources (ex. envelope)
  2. Realtime sources (ex. mod wheel)
33
Q

How do programmed modulation sources function?

A

Programmed sources will function exactly the same whenever they are used.

34
Q

How do realtime modulation sources function?

A

Realtime sources come from some aspect of a performance and are used to allow expressive control of a patch.

35
Q

When using a keyboard as a modulation source, what is the main element of a MIDI performance that can be used as a modulation source?

A

Velocity is the most common way to generate values from a performance.

36
Q

When using keyboard velocity as a modulation source, what is the main source that can be modulated?

A

Velocity can be used to set the initial value of a parameter at the attack of each note.

Sound Design for the Electronic Musician (Class) (12 decks)

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