Friday, 1 March 2013

Trautonium 1Mar13

Still waiting for the suitcase to arrive. In the meantime, here's another copy from the Doepfer Ttm page.

  • The system is controlled by the Trautonium Manual A-198 (manual and module left above). This manual/module generates the pitch control voltage for the oscillators and possibly the Gate signal for the "Schlagwerk" (envelope generator A-140 ) and a loudness control voltage for the first VCA A-131 if requested.
  • Right to the A-198 module a multiple A-180 is located. This can be used to distribute the CV of the A-198 to the VCOs (one A-110 as master VCO for the A-113, one A-110 as side oscillator) and the Quantizer A-156. The CV for the VCAs can be patched at the front panel (i.e. directly to the CV1 inputs) or via the Bus Access module A-185.
  • Next to it the Quantizer A-156 is arranged. This module is not available in the original Trautonium. It can be used to generate exact semitones from the control voltage coming from the A-198. From our point of view it is a useful extension for the system's possibilities. E.g. the envelope generator A-140 can be controlled by the trigger output of the A-156 to generate arpeggio-like tone sequences.
  • Next to the A-156 the system contains a voltage controlled switch A-150. It can be used to switch - e.g. with the foot - between quantized and not-quantized operation. The second switch of the A-150 can be used to switch the gate control for the envelope generator (e.g. between the Gate output of the A-198 or the trigger output of the A-156).
  • The following Bus Access module A-185 is suitable to connect the CV and Gate signal to the A-100 bus. In this case it is no longer necessary to patch the CV inputs of the VCOs A-110 and the Gate input of the envelope generator A-140 at the front panel of these modules.
  • The next modules are a VCO A-110 (master oscillator for the A-113), the Subharmonic Generator A-113 and another VCO A-110 ("Side Oscillator").
  • The Noise module A-118 is another sound source for the system.
  • The desired sound sources (Subharmonic Oscillator, Side Oscillator, Noise) are mixed in the A-138 and the output of the mixer is fed to the input of the Trautonium Filter A-104.
  • The output of the Trautonium Filter A-104 can be passed through another filter (e.g. the Wasp Filter A-124 controlled by the envelope generator A-140 or the A-145) and/or the Frequency Shifter A-126. Oskar Sala used for nearly all recordings a freeuncy shifter (made by the German company Telefunken). This is why we included the Frequency Shifter A-126. The additional Wasp Filter A-124 is not available in the original Trautonium but is a very useful extension for the system's possibilities. 
  • Finally the audio signal is processed by two VCAs (A-130 and A-131). One of the VCAs is controlled by a foot controller, the second by the pressure voltage of the Trautonium manual A-198, the envelope generator A-140 or the LFO A-145.
  • Module A-177 establishes the connection to the double foot switch (e.g. VFP2) and foot controller (e.g. FP5). The double foot switch can be used to switch between the mixtures of the Subharmonic Generator A-113. Alternatively one of the foot switches could be used to control the A-150 to switch between quantized and non-quantized mode (see Quantizer A-156 above). The foot controller is normally used to control the overall loudness with one of the two VCAs. But it could be used too to control the filter frequency of the Wasp Filter A-124.
  • Another module that could be included is the Spring Reverb A-199. Mr Sala used reverb or delay for almost all recordings.
  • If you prefer MIDI control instead of the A-198 the MIDI interface A-190 can be used.
  • These modules are not required for a replica of the original trautonium but are useful extension for the system's possibilities: A-156. A-150, A-185, A-124 and A-126 nicht benötigt.
I have the Wasp and Frequency Shifter, but the HP is expanding beyond my original calculations (and see my post earlier today about adding an AS RS35).

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