Yamaha SPX50D - Manual (Page 15)

22. Chorus A
23. Chorus B
24. Chorus C
Like flanging, chorus serves to thicken the sound of an instru­
ment, creating the effect of several instruments playing at
once. The A and B chorus effects split the incoming signal into
three signals placed at the center left and right of the stereo
image. The delay time and level of the three signals are then
modulated by the LFO (Low Frequency Oscillator). The Chorus
C effect sends the direct sound to the left channel and the
processed sound to the right channel.
IdB) DIRECT SIGNAL
AM DEPTH
. (TIME)
DM DEPTH
Modulation Frequency (MOD. FRQ): 0.1 Hz — 20 Hz
Sets the speed at which the effect varies.
Delay Modulation Depth (DM DEPTH): 0% —100%
This sets the amount by which the delay time of one delay
signal is varied in relation to the other, and thus the depth of
the CHORUS effect.
Amplitude Modulation Depth (AM DEPTH): 0% — 100%
Sets the amount by which the amplitude (level) of the input
signai is varied.
25. Stereo Phasing
Phasing is basically a “gentler” version of the flange effect, lend­
ing a smooth, animated quality to the originai sound.
• (TIME)
Modulation Frequency (MOD. FRQ): 0.1 Hz — 20 Hz
Sets the speed at which the phasing effect varies.
Modulation Depth (MOD. DEPTH): 0% —100%
Sets the amount of delay time variation, thus adjusting the
depth of the effect.
Modulation Delay (MOD. PLY): 0.1 — 8 milliseconds
This sets the delay time from the initial direct sound to the
beginning of the phasing effect.
26. Tremolo
27. Symphonic
The tremolo effect is produced in the same way as the flange
effect, but has a “bigger,” more sweeping sound. The sym­
phonic effect adds richness and life to the sound.
Modulation Frequency (MOD. FRQ): 0.1 Hz — 20 Hz
Sets the speed of the effect variation.
Modulation Depth (MOD. DEPTH): 0% —100%
Sets the depth of the effect.
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