Summary of DPO
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V2.6.
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Dpo limited warranty ----------------------------------------------------3 installation --------------------------------------------------4 overview ----------------------------------------------------------5 panel controls ---------------------------------------------------------6 complex waveforms...
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Limited warranty: thank you beta analyst: surachai test subjects: rob lowe, joseph raglani spiritual advisor: richard devine 3 about this manual: written by tony rolando edited by walker farrell illustrated by w.Lee coleman make noise warrants this product to be free of defects in materials or const...
Page 4: -12V
Electrocution hazard! Bus board connection cable. Do not touch any electrical terminals when attaching any eurorack bus board cable. The make noise dpo is an electronic music module requiring 70ma of +12vdc and 70 ma of -12vdc regulated voltage and a properly formatted distribution receptacle to ope...
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Overview: 5 the dpo is a voltage controlled oscillator designed for generating complex waveforms and implementing fm synthesis within the analog domain. Expanding on the classic arrangement of primary and modulator oscillators, the dpo has both of the vcos operable as complex signal sources. It is i...
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1a 2a 3a 1b 2b 3b 4b 5b 6b 7b 8b 12b 4a 5a 6a 7a 12a 8a 9a 10a 11a 9b 10b 11b 6 vco a 1a triangle waveform output: 10vpp 2a sawtooth waveform output: 9vpp 3a sine waveform output: 10vpp 4a coarse tune panel control: 9.5 octave range 12hz-6khz 5a 1v/octave scale trimmer (calibration use only) 6a fine...
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1 2 7 3 4 5 6 7 vco interaction 1. Beat frequency led: visual indication of phase difference between vcos a & b. 2. Follow cv input: unipolar control input. Range 0v to 5v. 3. Follow attenuator: determines how well vco a follows vco b. With nothing patched to follow cv input works as standard panel ...
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1a 1b 2a 3a 2b 3b 1c 2c 3c 4c 3d 4d 5d 2d 1d 8 vco b timbre controls and mod bus 1a. Shape panel control: unipolar control that determines the shape of the waveform feeding the folding circuit. Morphs from sine to spike to glitched triangle. 2a. Shape cv attenuator: unipolar attenuator for shape cv ...
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9 on the dpo both vcos are capable of generating complex and harmonically rich waveforms. This is accomplished through the use of fm and hard sync on vco a, and fm and timbre shaping on vco b. Fm bus the internal fm bus is hardwired for sine wave in both directions and makes use of the normalization...
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10 there is one way to affect the behavior of the vco b core. The external lock input allows for an extremely weak, phase reversed synchronization of vco b to an external vco where as vco b approaches an integer frequency of the applied external vco, vco b resets to match the external vco and small ...
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11 mod bus the internal mod bus source is hardwired for vco a sine wave, with the power to use any external source by patching to the ext. Source input. The internal mod bus system makes use of the normalization switch found on the mini-jacks, so with nothing patched to the shape, angle, and fold cv...
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12 the phase reversal and amplitude modulation that occurs around the 12:00 range of the shape parameter value is useful on it’s own (before folding occurs) for subtle and pleasing modulations via lfo. The shape circuit is slow and smooth with a unique response quite unlike the typical balanced modu...
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13 in addition to the final output, there are several wave shapes that are all tapped or derived from the oscillator cores. Except for the vco a saw and vco b square, these signals are all around 10v peak to peak and centered around 0v (bi-polar). The sine wave is derived from the triangle core of b...
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14 animated lead: patch sequencer or keyboard cv to vco b 1v/oct input. Monitor vco b final output. Set shape and angle panel controls and cv attenuators to 12:00. Set fold to 9:00 and set fold cv attenuator to 12:00. Set mod bus panel control to 12:00. Patch gate from sequencer or cv kb to strike i...
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15 skronky fm: engage sync mode on vco a. Monitor vco b sine output. Tune the two oscillators to a simple interval such as unison, a fifth or an octave. Adjust follow panel control to about 3:00. Turn up vco b lin fm attenuator to 12:00. Turn fm bus to 12:00. Send a sequence or keyboard voltage to v...
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16 wobble bass: monitor final output. Adjust fold, angle, shape panel controls and input attenuators to 12:00. Set vco a to lfo mode with coarse freq ~9:00. Adjust mod bus index panel control full cw, and fm bus index panel control full ccw. Adjust follow panel control full cw. Patch sequencer or ke...