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LYRA

8

USER MANUAL

LYRA'S HISTORY AND PHILOSOPHY

I have spent many years exploring the brain and nervous system of the living organism. 

One of the things I wanted to understand was how and why a several-hundred-neuron 

nervous system in the smallest of insects and the simplest of animals is capable of pro-

ducing the complex and multifaceted behaviour that our most powerful computers still 

fail to model today. One of the answers I found is that the brain is an analogue system 

with a large number of non-linear, chaotic processes. The brain, as well as the whole 

bio-organism, has many loops of positive and negative associations. Like a very complex 

see-saw, it's searching for balance while in constant motion. It's this balancing act on the 

brink of chaos in a highly non-linear state, that enables an organism and the brain as 

part of it, to react to the outside world so effectively and dynamically, and also to create 

inner worlds of its own.

This cannot be modelled by a digital machine, because in the process something essential 

is lost. In the age of digitalisation we've been consciously deleting all chaos or controversy 

from digital chains — which was their very essence. It's what makes even a simple living 

organism so effective: its every cell, when you look close enough, turns out to be a highly 

complex, virtually endless, unpredictable and open system — a mini-universe, a microcosm. 

Analogue electronic circuits give us something similar.

I decided I wanted to apply these concepts to building synthesizers, as synths are a huge 

interest of mine — my second love. LYRA's secret isn't the modules as such — they've all 

been around for decades. Rather, it's how they connect and interact. LYRA's schematics 

aren't linear, unlike classic subtractive synths with blocks in series that gradually pro-

cess the signal. Here, for example, the envelope generator can affect a voice's pitch, or 

in some modes change the parameters of FM synthesis or even of the delay when it's 

set to self-modulation mode (SELF on + MOD and FB high enough). LYRA is a structure 

that reacts to your slightest touch. It's a bizarre animal that twists and turns under your 

fingers, rather than a precise mechanism. This is why it's called "organismic".

Another important source for my experience has come from exploring acoustic instru-

ments, such as the violin. And that presented the question: how is it that a musician can 

consciously spend a profound lifetime with a piece of wood with four pieces of metal wire 

on it, with nothing more than a horse-tailed stick? How is it possible then that a musician 

gets bored in a matter of months with the most powerful synthesizer with a thousand 

controls? The answer I came to was that the best instruments are those that allow for 

the most direct and the most tactile connection between the player's body and the "tone 

generator". This gives the musician the most immediate control over the sound and, as 

such, the ability to express the aspirations of their soul. This is why we call a violin a "live" 

instrument.

Then an insight came: a synthesizer can act similarly if we rebuild the connection once 

broken. Just look at how many little machines stand in the way between the tone gener-

ators and the player's body in today's traditional synth: sequencers, quantizers,envelope 

generators, LFOs etc. The player, in fact, can't control the sound source as such; they just 

choose the algorithm for those machines to use to control the tone generator. From this 

standpoint, the perfect "live" synthesizer was the very first of them — the Theremin. Just 

one monophonic oscillator and one simple waveform, but it's so connected to the play-

er's movements. And, quite importantly, the Theremin is perhaps the only synth to have 

preserved its original structure despite the enormous progress in electronics since the 

1920s — which goes to show that the principle once found was absolutely right!

Содержание LYRA 4

Страница 1: ...USER MANUAL ...

Страница 2: ... impact on FM synthesis will decrease along with the decay of its envelope There s a CV IN on the rear panel to modulate the selected voice groups with an external signal The HYPER LFO is a complex low frequency generator whose waveform is synthesized from two simple LFOs by summation or multiplication of their frequencies It also has an FM synthesis mode The LFO can modulate the selected pairs of...

Страница 3: ...nal state At high humidity levels e g an open air show at night when dew appears or in rainy weather humidity may affect the sensors circuit which could lead to some of the voices sounding continuously This won t harm the instrument just allow it to dry in a dry room or in the sun and it will be all right again Just note that it might affect the performance 2 The FAST switches in downward position...

Страница 4: ...ill turn the LFO into a modulation source When the TOTAL FB is in upward position modulation will come from the device s output When a cable is plugged into the CV VOICES input an external source is used for modulation 7 The PITCH knobs transpose all of group 1234 or 5678 preserving the intervals between the voices Close to maximum is the normal position for these knobs 8 The HOLD knobs set the mi...

Страница 5: ... synthesis of a complex LFO They re two simple LFOs in essence 13 The AND OR switch In downward position an LFO is synthesized by adding FREQ A to FREQ B In upward position FREQ A is multiplied by FREQ B which is the logical operation AND Both operations are conducted on a square waveform The addition is analogue and the LFO output signal has a gradient 14 The LINK switch Adds a soft FM between th...

Страница 6: ...m available only for delay modulation It s a summation of two triangular signals with the frequency of FREQ A and FREQ B 19 The FB knob The delay line feedback This might get extreme At a setting just over the middle the delay starts to self oscillate At the verge of the self oscillation very interesting effects can emerge With self oscillation in full swing the delay becomes a synth unto itself 2...

Страница 7: ...nd LFO modes are automatically disabled and delay modulation comes from an external source regardless of the delay switch positions Set the modulation amount with the individual MOD knobs for each delay line The input signal must have a positive value and a 3 to 12 volt amplitude The relation of delay time to the control voltage is linear 6 CV VOICES This input is for using control voltage to cont...

Страница 8: ...sonant and dissonant scales and harmonies Try building some chords with the eight voices try interpreting the higher harmonies with lower bass notes Try soloing with one voice on top of an interval or a chord Now try slowly changing chords while playing E g in a C E G chord try raising G to A to get a C E A chord then raise E to F and get a C F A chord then lower C to Bb and get a Bb F A Now try t...

Страница 9: ...D at zero For a chorus like effect set the delay times close to minimum Now listen to various types of modulation Add FB to a stage of self oscillation and try only playing the delay by changing the delay time and modulation depth Here the slightest turn of a knob will affect the sound dra matically There are standing waves in the delay lines now and changing or modulating the delay times will cha...

Страница 10: ...velope generator can affect a voice s pitch or in some modes change the parameters of FM synthesis or even of the delay when it s set to self modulation mode SELF on MOD and FB high enough LYRA is a structure that reacts to your slightest touch It s a bizarre animal that twists and turns under your fingers rather than a precise mechanism This is why it s called organismic Another important source ...

Страница 11: ... create unique scales play around with microtonalities and so on In other words LYRA is a complex futuristic electronic violin that can hear you The third source for LYRA s philosophy is taken from the North Indian musical tradition with its remarkable attention to the inner states of the player the listener and the world and the ability to interact with them LYRA was greatly inspired by a deep st...

Страница 12: ... volt CV DELAY 6 3 mm TS jack CV VOICES unipolar range of 0 to 5 volt CV VOICES connector 6 3 mm TS jack Power supply stabilised 12 V 0 2 A centre positive Power Consumption 2 watt Dimensions 266 x 266 x 62 mm Weight without power supply and packaging 2 5 kg PACKAGING The box Lyra comes in should not be thrown away Its lightweight sturdy and durable con struction makes it an ideal transport case f...

Страница 13: ... thanks for your invaluable help I would also like to thank everyone who supports the project with their sincere attention and interest and simply with kind words and wishes ABOUT SOMA The word SOMA is an abbreviation from SOund MAchines SOMA is also a psychedelic ritual drink used in ancient vedic Indian culture as well as in Iranian known as Haoma and Persian ancient traditions The drink is ment...

Страница 14: ...Manual version 1 0 04 2017 Made in Russia ...

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