A module of modules: 3 dome filters, 4 ring modulators and some summing/differencing amps (mixers). Each additional slave requires an additional dome filter, pair of modulators, and mixers. I built my prototype as one `master` and one `slave`. I used more modern circuits - mainly the dome filter that JG rgen Haible used in his frequency shifters, and the 1496 based ring-modulator design by Yves Usson, with its excellent
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signal nulling. I opted to invert one of the ring modulator outputs rather than swap the sine and cosine inputs, to switch between up and down shifting. I left out the "squelch" initially, and for strictly synth use I don`t think it`s that useful, but I may eventually throw it in. I haven`t tried anything but VCOs (sine and triangle) as inputs yet, and the sounds I`m getting from it are amazing! You would think cross-modulating 3 oscillators would be a total mess, but it can be very musical since you only get the single sidebands Here is a Sound Sample with a sequencer controlling the "program" oscillator, starting with both "carrier" oscillators tuned to unison. A lot of playing around with the 2 carrier frequencies, and swithching from "up shift" to "down" shift about halfway through. Sine output used for all 3 oscillators. Both outputs fed through a VCA with a short attack medium decay envelope. No filters, reverb or anything else in there. Here is another Sound Sample again with a sequencer controlling the "program" oscillator, starting with both "carrier" oscillators tuned to unison. The 2 carrier oscillators are controlled from a split keyboard. The triangle wave outputs of the 2 carrier oscillators and the program oscillator were recorded on the left channel, the Klangumwandler outputs on the right channel. Same VCA envelope on the Klangumwandler, no other audio processing. Both shifts are set to "down Shift", so...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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