ELECTRONIC MUSIC LABORATORIES ElectroComp EML - 200 Manual Download Page 28 | Manualshive

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Summary of Contents for ElectroComp EML - 200

Page 1: ...ElectroComp EML 200 Manual electrmicmusic ISOO CTGOTIGS inc P 0 Box H Vernon Connecticut 06066iTel 1203 875 0751 ...

Page 2: ...tion of electronic music Learning Through P a r t i c i a t i o n develops the skills required for using the ElectroComp by 1 presenting a rudimentary description of the characteristics of musical tones 2 presenting a brief description of the ElectroComp and its individual modules and 3 presenting a series of experiments designed to engage the user in discovery through use ...

Page 3: ...d is expressed in t e r m s of the fundamental and overtones The fundamental i s the lowest tone present and is recognized normally a s the pitch of the sound due to its normally large amplitude in comparison to the ampli tude of the overtones The overtones technically called harmonics a r e whole number frequency multiples of the fundamental generally of reduced amplitude with respect to the fund...

Page 4: ...vertones do not maintain their whole number relationship with the fundamental thereby affecting a change in timbre Frequency shifting is accomplished U y combining two tones in a device called a ring modulator The tone to be shifted is called the c a r r i e r the tone doing the shifting i s called the modulator The resultant of this combination is the sum and difference frequencies of the two ton...

Page 5: ... control the duration of a signal or 4 control the function o f a module Lettering and guidelines indicate function and organization The lettering can be divided into the three catagories of 1 module name 2 control knob function and 3 jacknumbering The guidelines present on each module indicate the flow of signals from input to output Master Oscillator The Master Oscillator generates sine square a...

Page 6: ...nput frequency by use of a spring type mechanical delay There a r e two controls available gain and depth The gain con trol determines the volume of the output while the depth control determines the proportion of reverberated to unreverberated signal appearing a t the output There a r e one input and two output jacks Electronic Switch The Electronic Switch provides the capability of alternating tw...

Page 7: ...veshaper consists of three modules in one a Sampler an Envelope Generator and a Modulator Due to the complexity these three devices will be described separately The Sampler The Sampler is a device which inspects a continuously varying input such as a triangle wave and converts it into an incrementally varying function such as an ascending and descending staircase This output functions a s a Voltag...

Page 8: ... in this mode the connection from the en velope generator output to the modulator input is made automatically The Modulator contains two input jacks carrier and modulator and two output jacks Dual Mixers The Dual Mixers provide for the summing of three input signals per channel with each input having its own gain control A s well any portion of the output of either mixer can be routed to the other...

Page 9: ...ifier The Microphone Amplifier i s a low distortion amplifier designed to bring low level signals up to the standard level used in the ElectroComp An input gain volume control is provided There i s one input jack and two output jacks ...

Page 10: ...roComp that can possibly do any harm to the user or equipment 2 The system should never be disassembled or modified without permission from the factory 3 Generally when a function fails to function as expected it will be found that one of the following conditions exsist a gain or volume turned off b frequency of sound source not in hearing range c no output connection made 4 The output device for ...

Page 11: ...e sine triangle and square waves at 400 8 000 and 12 cycles per second a set the frequency of the Master Oscillator a t 400 cycles per second range control a t 100 and frequency control a t 4 b connect jack 2 sine wave output to jack 26 Mixer input listen c move jack 2 sine wave output to jack 3 triangle wave output listen d move jack 3 triangle wave output to jack 4 square wave output listen e re...

Page 12: ...wing control Procedure a set the frequency of the Master Oscillator a t 2 cycles per second range switch a t I and frequency control at 2 b set swing control full CCW and center frequency at 12 oo c connect jack 6 VCO output to jack 26 Mixer input d connect jack 5 VCO input to jack 2 sine output e slowly rotate swing control CW Result note that a s the swing control is rotated CW the amount of fre...

Page 13: ...ure a turn the gain and depth controls full CW b connect jack 8 VCO output to jack 9 Reverb input c connect jack 10 Reverb output to jack 26 Mixer input d move jack 9 Reverb input in and out Result note that the sound persists after the removal of jack 9 Reverb input indicating that the input signal is delayed in its passage through the reverb 7 Reverb Depth Control Purpose to determine the affect...

Page 14: ...CO output and jack 14 Switch input h rotate duration controls Result note that it is possible to control the rate and duration of alternation of two tones to a single output or one tone and silence Interesting affects can be achieved by rotating the frequency controls of the sound sources while the switch is alternating tones 9 Square Wave Filtering High Pass Purpose to modify the harmonic content...

Page 15: ...neration Purpose to develop an understanding of the Sampler when used as a control voltage for the VCO s Procedure a turn the rate and duration controls of the Sampler full CW b turn the swing control of the VCO to 12 OO c set the frequency of the Master Oscillator to 2 cycles per second d connect jack 3 triangle wave output to jack 19 Sampler input e connect jack 21 Sampler output to jack 5 VCO i...

Page 16: ...ack and decay n vary rate and duration Result note that the VCO follows the shape of the Envelope Generators output in frequency Also note that the rate of envelope generation can be controlled auto matically or manually 13 Amplitude Modulation using the Envelope Generator Purpose to use the Envelope Generator to amplitude modulate White Noise Procedure a turn the duration and r a t e controls of ...

Page 17: ...120 cycles per second d connect jack 2 sine output to jack 23 modulation input e connect jack 6 VCO output to jack 25 carrier input f connect jack 24 modulator output to jack 26 Mixer input g rotate the Master Oscillator over its decade range Result note that a s the Master Oscillator is rotated CW the output of the Modulator appears to have two separate tones one increasing with CW rotation and t...

Page 18: ... external sounds using the Microphone Amplifier Procedure a connect a mike to jack 35 Microphone input b connect jack 36 Microphone output to jack 32 Ring Modulator modulating input c connect jack 33 modulator output to jack 26 Mixer input d connect jack 2 sine output to jack 34 carrier input e set the frequency of the Master Oscillator a t 100 cycles f speak into the microphone Result note the ch...

Page 19: ...D CONN MASTER OSCILLATOR SWITCH Â CENTER FREQ 4 c 0 A ON TIME 6 A GAIN 1 2 0 1 0 0 0 FREQ HZ I 0 Â OEPl H 0 G A I N HIGH WSS f FILTER J 1 i NOISE 7 7 6 6 6 6 1 I 1 000 L J CHANNEL GAINS 36 t GAIN MIKE AMPj l Ã CHANNEL GAINS GAIN f AUTO ÂM4NUAL RING MOD DURATION ATTACK PUSH J Ln y TL J L POWER No 1 MIXERS AND PAN NO 2 WAVE SHAPER ...

Page 20: ...N AVAILABLE THROUGH ELECTRONIC MUSIC LAB INC A GAIN 1 1 CENTER FREQ 0 HIGH WSS FILTER x FREQ HZ CUT FREQ 15 SWING A 6 3 0 0 iJ 6 GAIN I GAIN CHANNEL A INS R LEFT STERKI RIGHT 0 0 0 T PA N 0 0 0 PA N f J Q AUTO Q MNUAL RING MOD 0 mDEL E M m 2 J POWER DURATION ATTACK PUSH r n y r z n 37 38 39 No 1 MIXERS AND PAN NO 2 WAVE SHAPER ...

Page 21: ...T 0 a WNUAL 9 DURATION ATTACK PUSH M m n WAVE SHAPER VCO No 2 Ã SWITCH A ON TIME 6 A GAIN B ON TIME 6 B 6AIN A No 1 MIXERS AND PAN No 2 I TAUOTTV ILLâ CONN 4 AVAILABLE THROUGH ELECTRONIC MUSIC LAB INC PO BOX 1334 HARTFORD CONN HIGH WSSy r LOW PASS f FILTER I I FILTER RING MOD 0 0 1 0 GAIN 0 maw mi J POWER ...

Page 22: ...N ATTACK M M WAVE SHAPER 0 CENTER FREQ REVERB 7 J SWITCH r 0 4 ON TIME 6 A GAIN t TAUOTrVILLE OONN 4 AVAILABLE THROUGH ELECTRONIC MUSIC LAB INC 1 P O BOX 1334 HARTFORD CONN J HIGH PASS FILTER 0 pT FREQ RING MOD 1 I GAIN No 1 MIXERS AND PAN No 2 1 LOW PASS FILTER 0 0 GAIN MIKE AMP MODEL EML 200 Ã Ã mww 3 ...

Page 23: ... 4 0 CENTER FREQ SWING SWITCH A ON TIME 0 ON TIME 6 6 A GAIN B 6A1N WAVE SHAPER N O 1 MIXERS AND PAN NO 2 TAUOTTV ILLE CONN AVAILABLE THROUGH ELECTRONIC MUSIC LAB INC 1 PO BOX 1334 HARTFORD CONN FILTER 0 CUT FREQ HIGH WSS 0 0 0 32 I GAIN RING MOD 0 CUT FREQ GAIN MIKE AMP ...

Page 24: ... Ring Modulators The voltages a r e proportional to the setting of the depressed key s respective control Low voltages CCW high voltages CW The output of jack 61 Sampled Voltage remains at the selected level after the release of the key and does not change un til the depression of another key The output of jack 62 Voltage is slightly lower than the Sampled Voltage and is only present during key de...

Page 25: ...se inputs 13 ZO Additionally you may have noticed that if you plugged one end of a jack into the pulse input of the Electronic Switch while it was running it would cease to run If you had con nected the other end to a Pulse output and pushed a key you would have heard the Switch come on once for each depression The following experiment will develop this method of control of the Electronic Switch E...

Page 26: ...with respect to the matrix keyboard In addition to controlling functions of the Studio Synthesizer the Manual Voltage Generator is internally connected to the Note Generator The matrix keyboard and presettable controls determine the pitch and duration of tones generated The NOTE GENERATOR performs the same function a s that achieved by the patching of Experiment 6 the generation of a shaped tone T...

Page 27: ... used has its pan control adjusted so that all output is passing to its output The MANUAL SWITCHES perform a s Amplitude Shapers Ring Modulators when used with an envelope They a r e primarily used for routing signals between inputs and outputs in the Studio Synthesizer The Manual Switches can rout either of two audio or control signals or none to a single input of the Studio Synthesizer or due to...

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