Operation Manual
Table Of Contents
- Table of Contents
- The Sequencer
- Routing Audio and CV
- Routing MIDI to Reason
- Using Reason as a ReWire Slave
- MIDI and Keyboard Remote Control
- Synchronization
- Optimizing Performance
- Transport Panel
- Reason Hardware Interface
- The Mixer
- Redrum
- Subtractor Synthesizer
- Malström Synthesizer
- NN-19 Sampler
- NN-XT Sampler
- Introduction
- Panel Overview
- Loading Complete Patches and REX Files
- Using the Main Panel
- Overview of the Remote Editor panel
- About Samples and Zones
- Selections and Edit Focus
- Adjusting Parameters
- Managing Zones and Samples
- Working with Grouping
- Working with Key Ranges
- Setting Root Notes and Tuning
- Using Automap
- Layered, Crossfaded and Velocity Switched Sounds
- Using Alternate
- Sample Parameters
- Group Parameters
- Synth parameters
- Connections
- Dr. Rex Loop Player
- Matrix Pattern Sequencer
- ReBirth Input Machine
- The Effect Devices
- Menu and Dialog Reference
- About Audio on Computers
- MIDI Implementation
- Index
Subtractor Synthesizer
106
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24 dB Lowpass (LP 24)
Lowpass filters lets low frequencies pass and cuts out the high frequencies.
This filter type has a fairly steep roll-off curve (24dB/Octave). Many classic
synthesizers (Minimoog/Prophet 5 etc.) use this filter type.
The darker curve illustrates the roll-off curve of the 24dB Lowpass Filter. The lighter
curve in the middle represents the filter characteristic when the Resonance parameter is
raised.
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12 dB Lowpass (LP 12)
This type of lowpass filter is also widely used in analog synthesizers (Ober-
heim, early Korg synths etc.). It has a gentler slope (12 dB/Octave), leaving
more of the harmonics in the filtered sound compared to the LP 24 filter.
The darker curve illustrates the roll-off curve of the 12dB Lowpass Filter. The lighter
curve in the middle represents the filter characteristic when the Resonance parameter is
raised.