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Jack Hertz

PPG iOS Infinite - New PPG Edition From Wolfgang Palm

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At the end of the 70s Wolfgang Palm developed wavetable synthesis. This was very successful and used by many synthesizer companies in the 80s and 90s. But this technology has its limitations. The main reason is that all sounds are harmonic. In nature this does not happen very often. Many sounds like a piano string have small offsets from the harmonic frequencies. This is even stronger in sounds like bells or percussion.

Infinite overcomes this limitation.
The frequencies of the overtones created by Infinite can be totally freely defined. So the sounds it produces are totally free in the frequencies of their overtones. This means that each partial wave can have an arbitrary frequency. 

Moreover it is possible to move these overtones independently during the duration of a note.

Quote

This has always been my dream. A system which can reproduce all kinds of sounds and transform them into a universal set of parameters. Thus all these sounds are completely morphable.

Wolfgang Palm

Another important part of most natural sounds is noise. Be it a flute or when a drumstick hits the drumhead - and this all can be reproduced in Infinite. 

Furthermore the noise source can be used to modulate the tonal part which results in very powerful effects.Besides these new digital features, we still have the typical 24db Lowpass filter, 2 VCA with stereo out and effects. All this is controlled by 10 envelopes, 4 LFOs and a modulation matrix.

Maybe the greatest innovation in Infinite is the Morpher. It is so easy to create new timbres and real-time effects by morphing the gains and frequencies of sounds with the X/Y controller. To get an impression of the morphing possibilities watch this short video.

On the SineEdit 1 panel, you edit the sine tracks with a set of parameters for each track. A track is the time sequence of one sine componente over the full length of the sound. A 3D display gives a good impression of the whole resource.

Example of a 3D view showing the FMo 2 resource which features strong frequency moves.iinf_stracks.jpg

On the SineEdit 2 panel, you edit the fine structure of a track in a bargraph. A FREQ mode lets you do this for the frequency.iinf_bared.jpg

The Parameter page edits the program parameters like Oscillator Pitch, the VCF (a 24dB lowpass filter), gain envelopes and LFOs. PPG Infinite is equipped with 10 envelopes. Some are fixed to a certain function, others can be freely connected with the matrix.iinf_paras.jpg

The browser page offers a number of easy ways to manage your programs. To group a selection of programs in a browser list, you have several filters and modes available. You can create a new list and then copy single entries from the browser list into the target list.iinf_browser.jpg

Key Features

  • New system which can synthesize harmonic and inharmonic sounds
  • Morpher - X/Y controller which morphes 5 user selectable sine resources
  • Noiser - X/Y controller morphing 3 noise resources and performing modulations on the tonal part
  • Molder - acts as a digital filter with any amaginable filter sweeps
  • Two detail editor pages for the Sine resources featuring a 3D display
  • Import WTS and TCS files from the iPad WaveGenerator and WaveMapper
  • Import Phonem utterances and use them in the Infinite Molder
  • Versatile matrix system - allowing 16 sources to control 40 parameters
  • 10 Envelopes, for control of filter sweeps, waveform, noise and many modulations
  • 4 LFOs which can be freely routed via the matrix
  • Delay/Reverb effect
  • Overdrive/Distortion effect
  • A/B compare your edited sounds
  • AU extension - run multiple Infinite instances in AU hosts
  • IAA - inter-app audio support
  • Audiobus 2 with statesaving
  • Export audio to AudioShare
  • Preset browser with new listing filters
  • Directly accessible context help for each module
  • Freely configurable schematic keypads, with extremely expressive modulation options
  • 4 Keypads play modes: Poly, Mono, Legato and Multitrigger.
  • 4 MIDI modes: Omni, Poly, Mono, and Voice-Per-Channel.

See the Demos and More Information to come at http://www.wolfgangpalm.com/iinfinite_demos.html

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