ARP2600 - Fundamentals of Music Technology - Cyborgstudio.com

134 - GLOSSARYSUPERSONIC - A tone whose fundamental frequencyis above 20 kHz and thus cannot beSUBTRACTIVE SYNTHESIS - A method ofsynthesis in which harmonics are removed fromone or more harmonically rich waveforms,SUSTAIN - The third stage of an ADSR envelopein which the voltage holds at a given leveluntil the gate signals is no longer applied to theenvelope generator.SWEEP - The act of moving a parameter throughsome of all of its possible values.TTHRESHOLD OF PAIN - The volume of soundat which it is painful to hear the sound.TIMBRE - The raw sound of a particular waveform,determined by its harmonic content, and thusits shape.TREMOLO - An effect which is like vibrato. Asub-audio sine wave modulates the gain on a VCAto produce a wavering effect in the sound.TRIANGLE WAVE - A waveform which hasonly the odd harmonics, slightly buzzy in sound,but more mellow than a saw wave. Increases to+5 volts before sharply changing to decrease to -5volts on the 2600.TRIGGER PULSE - A +15 volt spike of electricitysent out by the keyboard when a key ispressed to the envelope generators to cause themto begin their attack stage.TRIGGER MODE - A switch on the keyboard’scontrol panel which determines when the keyboardwill put out a trigger pulse.UUPPER VOICE - Output jacks on the keyboard’scontrol panel out of which the keyboard sends akeyboard control voltage representing the highestnote being played on the keyboard. This is separatefrom the regular keyboard CV being sent tothe cabinet, and it allows the ARP to play two notesat a time.USSACHEVSKY, VLADIMIR - Modernteacher and inventor. Taught Wendy Carlos at theColumbia-Princeton Center for Electronic Music.VVALUE - The setting of a parameter.VCA - See Voltage-Controlled Amplifier.VCF - See Voltage-Controlled Filter.VCO - See Voltage Controlled OscillatorVIBRATO - A form of frequency modulation.Usually done by an LFO. Results in a slight risingand falling in pitch. Common parameters includevibrato depth (frequency modulation depth) vibratorate (frequency of modulator) vibrato waveform(waveform of modulator) and vibrato delay(The amount of time between the key press andthe onset of vibrato). Vibrato lends a more humansound to otherwise sterile waveforms and is consideredto be highly desirable.VOLTAGE CONTROL - A system which usesraw voltages called control voltages to representvalues and to send them from module to module.VOLTAGE CONTROLLED AMPLIFIER - Amodule which allows the user to change the amplitudeof an incoming signal. Its gain parametercan be modulated.