Assessments - 3, GPA: 3.7
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Facilidade de uso
3 AN IMPORTANT NOTE................................. „ , 3 1. USING THE EXPANDER UNIT.......................... 4 1-1-0 The ADSR or ENVELOPE GENERATOR ............ 5 1-2-0 The VCO or VOLTAGE CONTROLLED OSCILLATOR . .. 7 1-3-0 The VCF or VOLTAGE CONTROLLED FILTER...... 14 2. THE NEW ELEMENTS. ................................ . 19 2-1-0 The RING MODULATOR......................... 19 2-2-0 The S/H or SAMPLE AND HOLD................... 23 3. IN CASE OF DIFFICULTY..... ?R 3-1-0 Troubles ...................................... 28 3-2-0 Things to remember............................. 2R THE LAST WORD.................................... 29 SPECIFICATIONS ......... . ........................... . 30 INSTANT INDEX INDEX TO TERMS.................................... . 31 INTRODUCTION Although it is designed as a part of the ROLAND System 100, the Model 102 Expander Unit can be used for greatly expanding the possibilities of almost any 1 volt per octave synthesizer. While it doubles the number of basic elements contained in the Model 101 Synthesizer, it more than doubles the sound synthesizing capabilities, especially with the inclusion of the RING MODULATOR and SAMPLE AND HOLD. It may be of interest to note that in our test laboratories we tried using two Expander Units with the Model 101 Synthesizer and were able to come up with some surprisingly good sounds. (The gate pulse and keyboard control voltage were fed to the second Expander Unit from the COMPUTER jacks on the back of the synthesizer). AN IMPORTANT NOTE..... In this manual, all elements of the synthesizer are suffixed with a number. "1" means Model 10J_ Synthesizer elements; "2" means Model 102 Expander Unit elements. Example: VCO-1 = Model 101 Synthesizer VCO VCO-2 = Model 102 Expander Unit VCO. 1. USING THE EXPANDER UNIT 1-0-1 Before we begin..... The Model 102 Expander Unit is designed to stand up behind the main Model 101 Synthesizer. EXPANDER 102 Fig. 1-1 SYNTHESIZER 101 Attach the enclosed masonite panel to the bottom of the Expander Unit as shown in fig. 1-2. 1-0-2 The POWER switches..... Note that both the 101 Synthesizer and 102 Expander Unit have their own POWER switches and that both switches have to be ON in order to use both units. 1-0-3 Connections..... Fig. 1-3 shows how to connect the two units together and to your amplifier. 1-0-4 Headphones In order to monitor the output of both units, use the PHONES jack and LEVEL control on the Model 102 Expander Unit. 1-1-0 The ADSR or ENVELOPE GENERATOR ADSR-2 is exactly the same as ADSR-1 except that the gate pulse connection is made externally through a patch cord. (The clock pulse from the S/H is the only internal connection for triggering ADSR-2; see 2-2-1). 1-1-1 Experimenting with the two ADSR's..... In Patch 25 (ADSR Test), the 101 Synthesizer and the 102 Expander Unit are set to produce two different qualities of sound to make it easier to hear the control and effects of the four ways to connect the two ADSR's. Set Patch 25a. Striking a key on the keyboard will show that ADSR-1 is nontrolling both units. Set Patch 25b. Striking a key now will show that both ADSR's have separate control of their own units. Set Patch 25c. In this patch, ADSR-2 controls both units. Set Patch 25d. In this patch, each ADSR controls the opposite unit. There is no advantage to this arrangement, so it is of little value except as an experiment. 1-1-2 The delayed vibrato ..... Patch 8 (Delayed Vibrato) shows how you can use ADSR-2 to induce a delayed vibrato effect into any patch set on the 101 Unit. The violin sound (Patch 34, MODEL 101 SYNTHESIZER PATCH BOOK) is a good patch to try this with. 1-1-3 How it works..... There is no connection to the 102 Unit KYBD CV INPUT jack, so VCO-2 receives no control voltage from the keyboard. The VCO-2 FREQUENCY control is set at the low end of the scale so VCO-2 acts as an LFO for modulating VCO-1. The output at VCA-2 is a sine wave (refer to Patch 45 (Sine Wave), MODEL 101 SYNTHESIZER PATCH BOOK). This low frequency sine wave is used to modulate VCO-1 by means of the patch cord and the VCO-1 EXT CV slider to produce the vibrato effect. The keyboard gate pulse triggers ADSR-2, which controls the amplitude of the output of VCA-2. The ADSR-2 ATTACK time will determine the amount of delay before the full vibrato is allowed to pass through VCA-2. 1-1-4 The snare drum..... Try Patch 14 (Snare Drum). This is a typical patch which depends on the mixing of the outputs of both units to produce one sound. The 101 Unit generates the rattling of the snares and the 102 Unit generates the drum “tone". The two VCA ADSR controls should be adjusted so as to get the proper balance between the two elements of the drum sound. 6 1-2-0 The VCO or VOLTAGE CONTROLLED OSCILLATOR The keyboard control voltage connection to VCO-2 is made externally through a patch cord (see Patch 25). In many patches, the VCO's must be tuned in relation to ...