Yamaha DX7 Product Manual - Page 11
Edit Parameter Selection violet labels, OPERATOR ON/OFF-EG COPY 1-6, ALGORITHM, FEEDBACK, SPEED, - samples
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6 and light brown characters below the buttons for FUNC- ALGORITHM TION mode parameters. A brief example for two buttons In EDIT mode, this button activates the [DATA is shown here, with the specific references for these two ENTRY] section so its controls can be used to select any buttons noted in parentheses: of the 32 available algorithms. Violet EDIT mode parameters (Pitch and Amplitude Modulation Sensitivity) White PLAY mode voice number (15 &16) Reverse printed EDIT mode Voice Name character (E&F) Brown FUNCTION mode parameters (SAVE all 32 voices from internal memory to cartridge, or LOAD 32 voices from cartridge to the internal memory) FEEDBACK In EDIT mode, this button activates the [DATA ENTRY] section so its controls can be used to alter the amount of feedback in whatever algorithm is displayed from none (0) to a maximum value (7). To simplify the presentation, we have further subdivided these buttons into the EDIT (violet) and FUNCTION (brown) groupings. Therefore, if you don't see the operational description that applies to what you're doing with a particular button as you read through the paragraphs on the EDIT parameters, check the corresponding button in the FUNCTION parameter descriptions (and vice-versa). Edit Parameter Selection (violet labels) LFO In EDIT mode, these 6 buttons each activate the [DATA ENTRY] section so it can be used to program or edit individual voices with regard to Low Frequency Oscillator modulation. When the modulation is used to change the pitch, vibrato can be obtained. When it is used to change the amplitude of a carrier, tremolo may result; changing the amplitude of a modulator can create "wah-wah." PMD This lets you set the Pitch Modulation Depth. This is the amount of modulation that will be applied to shift the pitch of whatever notes are played (according to the set waveform and speed). However, the modulation can only affect the note if the pitch modulation sensitivity is set to a value greater than zero (see [MOD SENSITIVITY-PITCH]). AMD Like PMD, this button lets you set the Amplitude Modulation Depth, the amount of modulation that will be applied when you play but it affects the amplitude (level), not the pitch. Likewise, the modulation can only affect the note if the Amplitude modulation sensitivity is set to a value greater than zero (see [MOD SENSITIVITY-AMPLITUDE]). The same LFO speed and waveform controls both the [PMD] and [AMD]. SYNC This lets you turn on or off the LFO Key Synchronization. When Sync is ON, the LFO is automatically reset to the beginning of the selected waveform each time you play a note. When sync is OFF the LFO waveform continues, and when you play a note, the result will vary depending on where the LFO is in the cycle. The effect can be easily detected at low LFO frequencies (SPEED settings below 10). OPERATOR ON/OFF-EG COPY (1-6) These buttons have two functions, (a) to turn individ- ual operators on and off while you are programming a voice, and (b) to designate the operator into which you wish to copy an envelope. When you are in the EDIT mode, the top center portion of the LCD display shows 6 number 1's or 0's, corresponding to the 6 operators: 1 =ON, and 0=OFF To toggle operator's output on or off, press the corresponding [OPERATOR ON-OFF] button. To copy the envelope, set the operator whose envelope you wish to copy as the current operator using [OPERATOR SELECT], then press [STORE] and hold it while pressing [EG.COPY] button for operator 1 to 6; all 4 rates and levels are instantly copied. WAVE This lets you set the LFO waveform to any of the following: triangle, sawtooth down, sawtooth up, square, sine, sample & hold. SPEED This lets you adjust the LFO frequency in a 100 step range, 0 being the slowest and 99 the fastest. DELAY This lets you set the LFO so modulation does not begin until after a specified time after you press the key, 0 being no delay, and 99 the maximum delay. MOD SENSITIVITY In EDIT mode, this pair of buttons activate the [DATA ENTRY] section so it can be used to set the sensitivity of individual voices to LFO modulation. The modulation sensitivity is like a master control for all the modulation, whether it is "built into" the voice with the adjacent [AMD] and/or [PMD] buttons, or whether it comes from the "real time" modulation controls such as the Modulation Wheel, the Foot Control, the Breath Control or the keyboard After Touch. If the Pitch or Amplitude Modulation Sensitivity is set at zero, then none of the external controllers can affect the voice, regardless of how much Depth is set with their FUNCTION mode controls.