Week 3 - Control Signals in Reason's Subtractor Flashcards
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
- LFO
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
- Filter envelope sustain level
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
- Set the sustain level to 0
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
- High filter resonance level
True or False: Timed segments in an envelope generator are usually tempo dependent.
False
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
- To control filter cutoff
Which of the following is a realtime control source?
1. Mod wheel
2. LFO
3. Amplifier envelope
4. Filter envelope
- Mod wheel
Which of the following is not a realtime control destination?
1. Mod wheel
2. LFO
3. Amplifier envelope
4. Filter envelope
- Mod wheel
True or False: Filter envelope amount is a destination for realtime control sources.
True
Which of the following would be the best LFO waveform for producing a vibrato effect?
1. Triangle
2. Square
3. Sawtooth
4. Random
- Triangle
Which of the following would be the best LFO waveform for producing a trill effect?
1. Triangle
2. Square
3. Sawtooth
4. Random
- Square
Which of the following is a bipolar control source?
1. Envelope generator
2. Mod wheel
3. Velocity
4. LFO
- LFO
What realtime control source most often controls the depth or amount of vibrato?
1. Velocity
2. Portamento
3. Mod wheel
4. Envelope generator
- Mod wheel
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
- LFO rate
Which of the following could be used to soften the attack of a note?
1. LFO
2. Envelope generator
3. Mod wheel
4. Aftertouch
- Envelope generator
What is the primary purpose of a step sequencer?
Step sequencers trigger notes and control note values in a timed and sequential order.
In the Subtractor synthesizer, what are 2 fixed modulation routings on the control panel?
- Filter Envelope
- Amp Envelope
What is a fixed modulation modulation routing?
The source is hard-wired to the destination and it can’t be changed.
When the release time is set to 0, what are the characteristics of the ending of the note shape?
A Release time of 0 stops output immediately.
When the Attack and Decay times are set to 0, what are the characteristics of the sound shape?
When Attack and Decay times are set to 0, there is an immediate output when a note begins.
When the Decay time is increased from 0, what happens to the shape of the sound?
With a short decay time, there is a strong initial attack.
What happens to the shape of a sound when the Release time is increased?
As we set the Release time increasingly longer, the notes begin to sustain over each other, and the sound becomes blurry and muddy.
What is the one setting in an envelope that needs to be increased in an Attack/Decay envelope setting?
Decay.
What is the biggest difference between an Amp Envelope and a Filter Envleope?
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.
What are the 2 controls in the Filter Envelope in Subtractor that controls the level of the filter cutoff?
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.
What happens to an envelope signal when inverted?
When the envelope is inverted, increasing the Sustain level has the opposite effect by lowering the cutoff frequency.
What is the difference between track-based automation and timed segments in an envelope generator?
Track-based automation will always follow the tempo of a sequence.
Timed segments of an envelope generator are set independently of tempo.
True or False: The note number provided in a MIDI keyboard can be used as a routing source signal.
True
Note number can be used as a source of control for any destination in a modulation routing.
What is the most common use of keyboard tracking?
The most common use of keyboard tracking is to control filter cutoff.
What happens to a filter when the resonance is boosted?
Resonance boosts frequencies at and near the cutoff.
What happens to the filter when the cutoff frequency is controller by a note number?
When the cutoff frequency is totally controlled by note number, the filter will actually be removing frequencies near the fundamental of these lower notes.
What does the Kbd control do in Subtractor?
The Kbd control in Subtractor’s filter section controls the amount that note number will affect the filter cutoff frequency.
What are the 2 types of ways modulation signals can control a module?
- Programmed sources (ex. envelope)
- Realtime sources (ex. mod wheel)
How do programmed modulation sources function?
Programmed sources will function exactly the same whenever they are used.
How do realtime modulation sources function?
Realtime sources come from some aspect of a performance and are used to allow expressive control of a patch.
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?
Velocity is the most common way to generate values from a performance.
When using keyboard velocity as a modulation source, what is the main source that can be modulated?
Velocity can be used to set the initial value of a parameter at the attack of each note.
