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Propellerhead PX7 Operation Manual

Fm synthesizer
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PX7 FM SYNTHESIZER
OPERATION MANUAL

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Summary of Contents for Propellerhead PX7

  • Page 1 PX7 FM SYNTHESIZER OPERATION MANUAL...
  • Page 2 The information in this document is subject to change without notice and does not represent a commitment on the part of Propellerhead Software AB. The software described herein is subject to a License Agreement and may not be copied to any other media expect as specifically allowed in the License Agreement. No part of this publication may be copied, reproduced or otherwise transmitted or recorded, for any purpose, without prior written permission by Propellerhead Software AB.
  • Page 3 PX7 FM Synthesizer...
  • Page 4 The PX7 was designed to offer all the vast sound possibilities of “the original” but with a more user friendly front panel. All parameters correspond exactly to the ones in the original instrument, which makes it possible to recreate all the famous sounds.

  • Page 5: Loading And Saving Patches

    Global “play” controls Bend The pitch bend wheel can be used for bending note pitches up and down. PX7 also responds to Pitch Bend MIDI data from a connected MIDI master keyboard. You set the desired Pitch Bend Range with the “Bend Range”...

  • Page 6: Mod Wheel

    The PX7 features six operators (sinewave oscillators). Depending on if an operator works as a sound generator (carrier) or modulator, the functionality is quite different. If an operator should work as a sound generator or modulator is determined by the Algorithm selector in the lower right corner of the PX7, so lets begin by describing this.
  • Page 7 An operator can either be connected and used as a sound generator (carrier) or as a modulator. In PX7 a carrier is shown with a filled background and a modulator is shown with a dark background with a frame. The carriers are always routed directly to the Output in the diagrams.

  • Page 8: Operator Controls

    • If several operators are used for generating the feedback signal, the result will be more complex signals - and in some cases noise. Operator controls The PX7 features six identical operators (sinewave oscillators) which are all built up the same way, with the same controls. Here we will describe the controls of one of the operators. On/Off Click to activate/deactivate the operator.
  • Page 9 • If the operator is a modulator in the algorithm, i.e. modulates another operator, the envelope affects the timbre of the sound. The envelope generators in PX7 are of a special type, called Level & Rate envelopes. As opposed to the traditional analog-style Attack-Decay-Sustain-Release envelope, this type uses a number of Levels that are reached at different Rates.
  • Page 10 • A high Rate value results in longer bass note decays and shorter treble note decays. Range: 0-7 Keyboard Level Scaling Keyboard level scaling is another special feature in classic FM synthesizers. If you like, you could compare this function to the “Keyboard Tracking” function found in other synthesizers. PX7 FM SYNTHESIZER...
  • Page 11 One of four different curve types can be selected for the left and right curves respectively: -LIN, -EXP, +EXP and +LIN. The figure below shows three examples of different Breakpoint (B.P.), Depth and Curve settings: -EXP +LIN -LIN +EXP -LIN -EXP PX7 FM SYNTHESIZER...
  • Page 12 “Mod wheel”. PX7 features an LFO which can be assigned to modulate pitch and amplitude. There are six different waveforms to choose from: Triangle, Saw Down, Saw Up, Square, Sine and Sample&Hold. Click the Tempo Sync LED button to sync the LFO to the sequencer tempo in Reason/Reason Essentials.

  • Page 13: Pitch Envelope

    Like the other envelope generators in PX7, the Pitch Envelope is of the Level & Rate type. One difference, though, is that the Levels are bipolar relative to the nominal pitch. Nominal pitch is achieved when the Level sliders are in their center positions.

  • Page 14: Audio Out

    Sequencer Control In The Sequencer Control CV and Gate inputs allow you to play PX7 from another CV/Gate device (typically a Matrix or an RPG-8). The signal to the CV input controls the note pitch, while the signal to the Gate input delivers note on/off along with velocity.

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