Yamaha SY85 Owner's Manual (feature Reference) (image) - Page 69

Reso (Resonance) Range: 0 ... 99 Controls: [CS7], [-1] [+1], Dial Determines the degree of filter resonance when the "LPF" filter type is selected ("--" appears in place of the resonance parameter when any other filter type is selected). This parameter has a similar effect to the "resonance" settings on traditional analog synthesizer filters - i.e. it determines the height of a peak in the filter response at the cutoff frequency. The illustrations here are not available. Higher resonance values produce a higher resonant peak and reduce the overall bandwidth of the filter, passing a narrow band of frequencies at the filter's cutoff. CTRL (Filter control) Range: EG, LFO Controls: [CS8], [-1] [+1], Dial Determines whether the cutoff frequency of the selected filter will be controlled by the LFO or by the filter envelope generator (EG). Varying the filter cutoff frequency can create "sweep" or "wah-wah" type effects. If the cutoff is controlled via the LFO a cyclic variation based on the "shape" of the selected LFO waveform is produced. If EG control is selected, the filter envelope generator (see "FILTER EG LEVEL & RATE" below) can be set up to produce a wide range of time-based variations. Please note that if "LFO" is selected, the filter cutoff envelope generator parameters have no effect on the sound. 68 VOICE EDIT MODE / 3:Filter