Yamaha MOTIF7 Owner's Manual - Page 46

Basic Structure Main functions ■ Pitch Reference (page 138) This unit controls the pitch of each Element output from OSC. You can detune Elements, apply Pitch Scaling and so on. Also, by setting the PEG (Pitch Envelope Generator), you can control how the pitch changes over time. ● PEG (Pitch Envelope Generator) Using the PEG, you can control the transition in pitch from the moment a note is pressed on the keyboard to the point at which it is released. As illustrated at right, the Pitch Envelope consists of five Time (transition speed) parameters and five Level (pitch) parameters. This is useful for creating automatic changes in pitch. Furthermore, different PEG parameters can be set for each Element. Attack Decay1 Sustain Release Level Level Level Level Key off Level Hold Level 0 Hold Time Attack Decay1 Decay2 Time Time Time Time Release Time ■ Filter Quick Start Guide (page 84) · Reference (page 140) This unit modifies the tone of each Element output from Pitch by cutting the output of a specific frequency portion of the sound. You can also set the Filter Envelope Generator (FEG), to control how the filter works over time - letting you set up dynamic changes in tone. ● Cutoff Frequency and Resonance Filters work by allowing the portion of the signal lower than a given frequency to pass, and cutting the portion of the signal above that frequency. This frequency is referred to as the cutoff frequency. You can produce a relatively bright or darker sound by setting the cutoff. A parameter that boosts the level of the signal in the area of the cutoff frequency is called Resonance. By emphasizing the overtones in this area, this can produce a distinctive "peaky" tone, making the sound brighter and harder. Level Cutoff frequency Level These resonance are "passed" by the filter. Frequency (pitch) Resonance Frequency (pitch) Cutoff frequency ● About the main Filter types The Low Pass Filter is shown in the illustration above - however, the MOTIF features other Filter types as well. This section introduces you to the four types. • Low Pass Filter (above) This only passes signals below the Cutoff frequency. You can then use the Reso (Resonance) parameter to add further character to the sound. • High Pass Filter This only passes signals above the Cutoff frequency. You can then use the Reso (Resonance) parameter to add further character to the sound. Resonance These frequencies are "passed" by the filter. Cutoff Frequency 46 MOTIF Basic Structure