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MFOS | Alien Screamer |
Description | The MFOS Alien Screamer circuit consists of three main components: a voltage controlled oscillator, a low frequency oscillator and a one watt amplifier that drives a small speaker. The unit is powered by one nine volt battery and due to the low current drain of the LM324 it gets a lot of miles out of a nine volt battery. There's no time like the present to start that hobby you've wanted to get going for years. This is a great project for beginning your synth-diy journey or if you're already building sound gear this is a great project to make for that imaginative young person in your life. It's a great introduction to synth-diy (the oscillator is a ramp core driven by an exponential V to I convertor). Don't expect to play this as a traditional instrument (although it does a decent imitation of a theremin in the right hands) but do expect to have a lot of creative, imaginative sound making fun. From star trek communicators to birds tweeting you'll find a wealth of coolness. |
Brand | MFOS |
Model | Alien Screamer |
Device | Synth |
Type | Desktop |
Engine Type | Analog |
Engine | VCO |
Voices (max) | 1 |
Oscillators | 1 |
LFO | 1 Square |
Engine Detailed | 1 Square |
Keys | 0 |
Key type | N/A |
Velocity | N/A |
Aftertouch | N/A |
Extra info | DIY |
Produced: | 2012 |
Legend: | Obvious | Y: Yes, N: No, N/A: Not Applicable | |
VCO | Voltage Controlled Oscillator | DCO | Digital Controlled Oscillator |
LFO | Low Frequency Oscillator | Sub | Sub Oscillator |
VCF | Voltage Controlled Filter | VCA | Voltage Controlled Amplifier |
Velocity | As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. | Aftertouch | Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel. |
Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise. |