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Фрагмент инструкции
Ideal for live performances, this amazing creation is with a manual control, with an authentic COMPU-MEMORY that stores eight different timbres as well as the ten pre-set sounds. The two channel output with its stereo effect and the external control mechanism make possible the fascinating pursuit of keyboard dreams. • In order to make this instrument display the best of its characteristic traits, it is desired that you have full knowledge on the functions of its sliders, tablets and knobs. For the purpose of helping you master how to play this instrument as early as possible, the setting examples are provided, but it is you who creates the sound just as in the case of the synthesizer. It is hoped, therefore, that you will draw out full performance of this instrument by finding new setting and playing methods. CONTENTS • SYNTHESIZER BASICS 4 • HOOKUP 8 • CONNECTION TERMINAL 6 • INSTRUCTIONS FOR HOOKUP 7 • NAMESOFTHECOMPONENTS B • FUNCTIONS OF THE 9 COMPONENTS !lJ. Power Supply Switch 9 |g!. Keyboard g (31. Tuning 10 (4J. Ensemble Switch 10 №. Arpeggio Selector 10 (Ml. Key Assignment Mode Switch io IzL Hold Switch 10 (H. Memory Write Switch 10 (91. Manual Switch 10 fid. Compu-Memory Selection Switch 10 ¡If. Pre-Set Selection Switch io 0. Protection Switch Si. Volume B. VCO SI. Noise SI. VCF SB. VCA SJ. LFO S3. Trigger 19. Delay /Bend EJ. Bend I Modulation 0. Portamento ||. Transpose . • SAMPLESOUNDS • SAMPLE NOTES • BLOCK DIAGRAM • SPECIFICATIONS «Before Starting......» •Power supply indicated on the name plate must be used. In case that the power sup ply in your district is different from it, it must be adjusted, using the voltage regulator. •Because it is operated by AC power this instrument may sometimes generate a little heat. «Notes» •Keep away from interferences that induce high levels of noise, such as flourescent lamps, neon lights and transformers as much as possible. •Avoid the use of this instrument in places that are dusty, of high temperature or high humidity. •Clean the control panel with neutral detergent. Use a soft, dry cloth for the wooden parts. Do not use solvents such attaint thinner. I SYNTHESIZER BASIC BLOCKS MAKING UP A SYNTHESIZER PITCH COLOR VOLUME CONTROLLER Ш U VCA W VI] ЛОТТ KEYBOARD .ГТ "4ч LFO V MODULATION SIGNAL OSCILLATOR ENV SOUND SIGNAL CONTROL VOLTAGE GATE PULSE • THE THREE QUALITIES OF SOUND The three qualities of sound are: pitch, tone color, and loudness. The pitch produced depends on the vibration rate. Fig. 1 shows that the higher (he vibration fare, or the higher the frequency of the vibrations, the higher the pitch is. In synthesizers, pitch is controlled by the VCO. An oscillator is an electronic circuit which generates a waveform, or in this case, sound. "Voltage controlled" means that a FIG. 1 — SOUND PITCH = FREQUENCY voltage is used to control the frequency (pitch, in this case) of the oscillator; the higher the voltage, the higher the frequency. This, then, is the first quality of sound: pitch. Fig. 1 shows what are known as sine waves, the simplest mode of vibration. The sound of a sine wave is very clean and pure. Most sound sources vibrate at many frequencies at the same time, however. The lowest of the vibrations, and usually the strongest, is the one which we hear as the musical pitch of the sound source. The presence of these other frequencies is what gives a sound source its second quality: tone color. The frequencies produced by the complex vibrations of a sound source are called harmonics. Harmonics are usually multiples of the pitch frequency. For example, consider a sound source which vibrates so as to produce a pitch with a frequency of 200Hz. The first harmonic would be 200Hz (1 x 200 = 200). The first harmonic is also called the fundamental because this is the frequency which gives the sound its musical pitch. The second harmonic would be 2 x 200, or 400Hz. The third harmonic would be 3 x 200, or 600Hz; the fourth harmonic 4 x 200, or 800Hz, etc. Fig. 2 shows a square wave. Square waves produce a tone color much like that of a FIG. 2 —TONE COLOR » HARMONIC CONTENT SQUARE WAVE wiimiwmoIIi« SINE WAVE clarinet. Square waves coniain only the odd numbered harmonics, or in other words, those frequencies which are one, three, five,seven, etc. times the frequency of the fundamental, or pitch frequency. The even numbered harmonics are missing Tone color, then, is determined by the harmonic content of the sound; the more harmonics there are, the brighter the tone color. In the synthesizer, tone color is controlled by the VCF. The VCO produces a basic sound wave rich in harmonics The VCF is used to remove lor filter out I some of these harmonics thus controlling !he harmonic content of the finished sound The amount of the harmonics removed is controllable by a control voltage The third quality of sound, loudness, is determined in a synthesizer by the level or amplitude of the waveform, as shown in ...