OpisThe term subharmonics was introduced by Oskar Sala in connection with his so-called Mixtur-Trautonium.
A subharmonic means in this context a sawtooth wave (German: Kippschwinger) whose frequency is derived from a master frequency and the master frequency is an integer multiple in the range of 1...24 of the subharmonic - in other words: the master frequency is divided by an integer 1...24 to obtain the subharmonic.
Pay attention that the output waveform of a subharmonic is sawtooth (as also used in the original Trautonium) and not sine.
The term subharmonics is somewhat misleading.
The master frequency comes e.g. from an A-110 or A-111 to the frequency input of the A-113. The frequency dividers of the 4 subharmonics is adjusted with up/down buttons as displayed with 2 character LED displays. The subharmonics are available as single outputs and as mix output with adjustable levels for the subharmonics.
Two gate type control inputs enable to select between 4 different mixtures, i.e. 4 different settings of the frequency dividers.
In the original Trautonium these are controlled by foot switches to switch between 3 mixtures while playing (the original Trautonium has only 3 mixtures available but with the 2 gate inputs of the A-113 four different settings can be adressed).
Additionally the A-113 features a mixture memory with 50 presets.
Each preset consists of 4 mixtures that can be selected with the gate inputs, each mixture contains the values of the 4 frequency dividers.
Subharmonic 1 ouput
Subharmonic 2 ouput
Subharmonic 3 ouput
Subharmonic 4 ouput
Foot Ctr (Gate) input 1
Foot Ctr (Gate) input 2
Kategorie: Syntezatory Modularne, Moduły Eurorack, Multiple/Divider/PLL, Producenci, Doepfer.