MATHS
Limited WARRANTY: Make Noise warrants this product to be free of defects in materials or construction for a period of one year from the date of purchase (proof of purchase/invoice required). Malfunction resulting from wrong power supply voltages, backwards power cable connection, abuse of the product or any other causes determined by Make Noise to be the fault of the user are not covered by this warranty, and normal service rates will apply.
Installation: The Make Noise MATHS is an electronic signal generator requiring 60mA of +12V and 60ma of -12V regulated power and properly formatted distribution receptacle to operate. It is designed to be used within the euro format modular synthesizer system. Go to http://www.doepfer.de/a100_man/a100t_e.htm for the details of this format.
Overview: MATHS is an analog computer designed for musical purposes. Amongst other things, it will allow you to: 1. Generate a variety of linear, logarithmic, or exponential triggered or continuous functions 2. Integrate an incoming signal 3. Amplify, attenuate and Invert an incoming signal 4. Add, subtract and OR up to 4 signals 5. Generate analog signals from digital information (Gate/ Clock) 6. Generate digital information (Gate/ Clock) from analog signals 7.
2 1 5 7 14 15 3 4 6 8 9 10 11 12 13 MATHS Channel 1 1. Signal IN: Direct Coupled input to circuit. Use for Lag, Portamento, ASR (Attack Sustain Release type envelopes). Also input to SUM/ OR Bus. Range +/-10V 2. Trigger IN: Gate or Pulse applied to this input will trigger the circuit regardless of activity at the Signal IN. The result being a 0V to 10V function, aka Envelope, whose characteristics are defined by the Rise, Fall, and Vari-Response parameters.
2 1 5 7 14 15 3 4 6 8 9 10 11 12 13 MATHS Channel 1 (Cont’d) 8. BOTH CV IN: Bi-Polar Exponential control signal input for ENTIRE function. Contrary to the Rise and Fall CV IN, BOTH has an Exponential response and Positive control signals decrease total time while Negative control signals increase total time. Range +/-8V 9. FALL CV IN: Linear control signal input for Fall parameter.
2 7 1 5 3 4 6 8 9 10 11 12 15 14 13 MATHS Channel 4 1. Signal IN: Direct Coupled input to circuit. Use for Lag, Portamento, ASR (Attack Sustain Release type envelopes). Also input to SUM/ OR Bus. Range +/-10V 2. Trigger IN: Gate or Pulse applied to this input will trigger the circuit regardless of activity at the Signal IN. The result being a 0V to 10V function, aka Envelope, whose characteristics are defined by the Rise, Fall, and Vari-Response parameters.
2 7 1 5 3 4 6 8 9 10 11 12 15 14 13 MATHS Channel 4 (cont’d) 8. BOTH CV IN: Bi-Polar Exponential control signal input for ENTIRE function. Contrary to the Rise and Fall CV IN, BOTH has an Exponential response and Positive control signals decrease total time while Negative control signals increase total time. Range +/-8V 9. FALL CV IN: Linear control signal input for Fall parameter.
1 2 3 4 5 9 6 8 7 14 12 11 14 10 13 SUM and OR Bus 1. Signal IN Channel 2: Direct Coupled input to Attenuvertor and SUM/ OR Bus. Normalized to a +10V reference for generation of voltage offsets. Input Range +/-10V 2. Signal IN Channel 3: Direct Coupled input to Attenuvertor and SUM/ OR Bus. Normalized to a +5V reference for generation of voltage offsets. Input Range +/-10V 3. CH.
1 2 3 4 5 9 6 8 7 SUM and OR Bus (cont’d) 14 12 11 14 10 13 7. CH. 1 Variable OUT: The applied signal as processed by CH. 1 controls. Normalized to the SUM and OR busses. Inserting a patch cable will remove the signal from the SUM and OR busses. Output Range +/-10V 8. CH. 2 Variable OUT: The applied signal as processed by CH. 2 controls. Normalized to the SUM and OR busses. Inserting a patch cable will remove the signal from the SUM and OR busses. Output Range +/-10V 9. CH.
MATHS is laid out top to bottom, with symmetrical features between CH. 1 and 4. The signal inputs are at the top, followed by the panel controls and control signal inputs at the middle. The signal outputs are at the bottom of the module. LEDs are placed near the signal they are indicating. Channels 1 and 4 are able to scale, invert or integrate an incoming signal.
RISE/ FALL/ Vari-Response These controls shape the signal that is output at the Unity Signal OUT and Variable OUT for CH. 1 and 4. The RISE and FALL controls determine how fast or slow the circuit will respond to signals applied to the Signal IN and Trigger IN. The range of times is larger than the typical Envelope or LFO. MATHS will create functions as slow as 25 minutes (Rise and Fall full CW and external control signals added to go into "slow-ver-drive") and as fast as 1khz (audio rate).
Signal OUTS There are many different signal outputs on the MATHS. All of them are situated at the bottom of the module. Many of them have LEDs situated nearby for visual indication of the signals. The Variable OUTs These outputs are labelled 1, 2, 3 and 4 and are associated with the four Attenuvertor controls in the center of the module. These outputs are all determined by the settings of their associated controls, esp. the CH. 1 thru 4 Attenuvertor controls.
Tips & Tricks -Longer cycles will be achieved with more Logarithmic response curves. The fastest, sharpest functions will be achieved with extreme exponential response curves. -Adjustment to the response curve will affect RISE and FALL Times. -To achieve longer or shorter RISE and FALL Times than available from Panel Controls, apply a voltage offset to the Control Signal Inputs. Use CH. 2 or 3 for this offset voltage.
Patch Ideas: Analog Voltages, Low Frequency Oscillators Typical Voltage Controlled Triangle Function (Triangle LFO) Set CH. 1 (or 4) to Cycle. Set RISE and FALL Panel Control to NOON. Set CH. 2 Attenuvertor to NOON. Patch SUM OUT to Both Control Input. Apply desired frequency modulation to CH. 3 Signal Input. The CH. 2 Attenuvertor will set Frequency. Output is taken from Signal OUTs of associated channel. Setting RISE and FALL parameters further CW will provide longer cycles.
Patch Ideas: Analog Voltages, Triggered Functions/ Envelopes Voltage Controlled Transient Function Generator (Attack/ Decay EG) A pulse or gate applied to the Trigger IN of CH. 1 or 4 will start the transient function which rises from 0V to 10V at a rate determined by the RISE parameter and then falls from 10V to 0V at a rate determined by the FALL parameter. This function is re-trigger-able during the falling portion.
Patch Ideas: Analog Signal Processing, Voltage MATHS! ADD, Subtract Control Signals Apply signals to be added/ subtracted to any combination of Signal IN CH. 1,2,3,4 (when using CH. 1,4 RISE and FALL must be set to full CCW, and Cycle switch not engaged). For channels to be added, set Attenuvertor controls to full CW. Set Attenuvertors for channels to be subtracted to full CCW. Take output from SUM OUT.
Pseudo-VCA with clipping - Thanx to Walker Farrell Patch audio signal to CH. 1, with RISE and FALL at full CCW, or cycle CH. 1 at audio rate. Take output from SUM out. Set initial level with CH. 1 panel control. Set CH. 2 panel control full CW to generate a 10v offset. Audio will start to clip and may become silent. If it's still audible, apply an additional positive offset with CH. 3 panel control until it is just silent. Set CH.
