Yamaha SPX2000 SPX2000 Owners Manual - Page 31

Reverb Reverb (PRESET bank) These are gated reverbs. The early reflections and subsequent reverberation can be controlled separately. By using the gate you can cause only a portion of the reverberation to be heard. Each aspect of the sound is controlled by the following effect parameters. Early reflections: INI.DLY Reverberation: REV TIME, HI.RATIO, LO.RATIO, DIFF., DENSITY, E/R DLY Gating: GATE LVL, ATTACK, HOLD, DECAY Overall effect sound: E/R BAL. Filter/equalizer: HPF, LPF Output level: OUT LVL, MIX BAL. Level Original sound INI. DLY Early reflections Reverberation REV TIME Time Parameter details ■Basic parameters Parameter name REV TIME HI.RATIO Range 0.3-99.0 s 0.1-1.0 LO.RATIO 0.1-2.4 INI.DLY DIFF. DENSITY 0.0-500.0 ms 0-10 0-100% Explanation Reverb time. This is expressed as the time over which reverberation at 1 kHz will decay by 60 dB. Reverb time for the high-frequency range or low-frequency range, expressed as a proportion of REV TIME. If this value is 0.1 the time will be 1/10th the REV TIME; if it is 1.0 the time will be the same as the REV TIME. You can adjust these values to simulate the absorptiveness of the walls or ceiling. HI.RATIO is the decay of the high-frequency range, and LO.RATIO is the decay of the low-frequency range. Delay of the early reflections relative to the original sound. This also affects the delay until the reverberation is heard. Diffusion of the sound to left and right. Increasing this value will make the reverberation more spaciousness. Density of the reverberation. Increasing this value will make the reverberation smoother. You can create unique effects by lowering this value. ■Fine parameters Parameter name MIX BAL. OUT LVL E/R DLY E/R BAL. HPF LPF GATE LVL ATTACK HOLD*a DECAY*a Range 0-100% 0-100% 0.0-100.0 ms 0-100% Thru, 21.2 Hz-8.00 kHz 50.0 Hz-16.0 kHz, Thru OFF, -60-0 dB 0-120 ms 44.1 kHz: 0.02 ms-2.13 s 48 kHz: 0.02 ms-1.96 s 88.2 kHz: 0.01 ms-1.06 s 96 kHz: 0.01 -981 ms 44.1 kHz: 6 ms-46.0 s 48 kHz: 5 ms-42.3 s 88.2 kHz: 3 ms-23.0 s 96 kHz: 3 ms-21.1 s Explanation Balance between the original sound and effect sound. At a setting of 0% only the original sound will be output; at a setting of 100% only the effect sound will be output. Output level after the original sound and effect sound have been mixed. Decrease this value if you want to lower the output. At a setting of 0% there will be no output. Delay of the subsequent reverberation relative to the early reflections. The delay from the original sound until the beginning of the subsequent reverberation will be INI.DLY + E/R DLY. Balance of the early reflections and subsequent reverberation. At a setting of 100% only the early reflections will be output; at a setting of 0% only the reverberation will be output. A filter that cuts the low-frequency portion of the effect. Frequency components lower than the frequency specified here will be cut. With a setting of Thru this filter will do nothing. This filter does not affect the original sound. A filter that cuts the high-frequency portion of the effect. Frequency components above the frequency specified here will be cut. With a setting of Thru this filter will do nothing. This filter does not affect the original sound. The level at which the gate is triggered. The gate will begin opening when the level of the original sound exceeds this value, and will remain open as long as the level remains above this value. The attack time of the gate. This is the time from when the gate begins to open until it is completely open. Higher settings of this value will make the gate open more slowly; i.e., the volume that passes through the gate will rise more slowly. With a setting of 0 ms, the gate will open completely the moment the original sound reaches the GATE LVL. The minimum time that the gate remains open. Even when the original sound falls below the GATE LVL, the gate will remain open for the time specified by this value. The decay time of the gate. This is the time from when the gate begins to close until it is completely closed. Higher settings of this value will make the gate close more slowly; i.e., the volume that passes through the gate will decrease more slowly. *a. The range of this parameter depends on the sampling frequency at which the SPX2000 is operating. SPX2000-Owner's Manual 31