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Yamaha SPX50D Manuel D'utilisation page 21

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35. Parametric EQ
This versatile parametric equalization program offers precise
sound-shaping control so you can create precisely a required
tonal effect.
{dB} 20
5K
10K 20K
(Hz)
High-pass Filter (HPF): THRU, 32 Hz — 1000 Hz
Permits rolling off the the low-frequencies below the set fre-
quency. The HPF is OFF when set to THRU.
Midrange EQ Frequency (MID FRQ.): 315 — 4,000 Hz
Sets the mid-frequency range to be boosted or cut using the
next parameter: MID GAIN.
Midrange EQ Gain (MID GAIN): -15 — +15 dB
Boosts or cuts response in the frequency range set by the
MID FRQ parameter (above). A setting of 0 produces no
boost or cut. Minus settings (e.g: -6 dB) cut response in the
selected frequency range, while plus settings (e.g: +12 dB)
boost
response.
x
Midrange Bandwidth (MID Q): 0.32 — 10
Sets the bandwidth
of the range of frequencies to be
boosted or cut using the MID GAIN parameter. The higher
the value, the narrower the range of frequencies affected.
High EQ Frequency (HI FRQ.): 800 — 8,000 Hz
Sets the high-frequency range to be boosted or cut using the
next parameter: HI GAIN.
High EQ Gain (HI GAIN): -15 — «15 dB
Boosts or cuts response in the frequency range set by the
HI FRQ parameter (above). A setting of O produces no boost
or cut. Minus settings (e.g: -6 dB) cut response in the se-
lected
frequency range, while plus settings (e.g: +12 dB)
boost
response.
High-frequency Bandwidth (HI Q): 0.32 — 10
Sets the bandwidth
of the range of frequencies to be
boosted or cut using the HI GAIN parameter. The higher the
value, the narrower the range of frequencies affected.
Low-pass Filter (LPF): 1 kHz — 11 kHz, THRU
Permits rolling off the high-frequencies above the set fre-
quency. The LPF is OFF when set to THRU.
EQ Delay Time (DELAY): 0.1 — 400 milliseconds
Determines the time it takes for the equalizer to actually take
effect after a note is played.
The distortion programs are capable of producing an extremely
broad range of distortion sounds that are ideal for virtually all
guitar styles. The various presets provide a range of immedi-
ately useful distortion sounds.
`
Distortion (DISTORTION): 0 — 100%
This parameter sets the "degree" of distortion produced. A
setting of 0 produces a perfectly clean sound, while a setting
of 100 produces the most heavily distorted sound.
Treble Boost/Cut (TREBLE): -12 — +12 dB
Permits boosting or cutting the high-frequency range. Minus
settings (e.g: -6 dB) reduce the high-frequency content of the
sound, while plus settings (e.g: +6 dB) emphasize the high-
frequencies.
Midrange EQ Frequency (MID FRQ.): 500 — 4,000 Hz
Sets the mid-frequency range to be boosted or cut using the
next parameter: MID GAIN.
Midrange EQ Gain (MID GAIN): -12 — «12 dB
Boosts or cuts response in the frequency range set by the
MID FRQ parameter (above). A setting of O produces no
boost or cut. Minus settings (e.g: -6 dB) cut response in the
selected
frequency range, while plus settings (e.g: +12 dB)
boost response.
Bass Boost/Cut (BASS): -12 — +12 dB
Permits boosting or cutting the low-frequency range. Minus
settings (e.g: -6 dB) reduce the low-frequency content of the
sound, while plus settings (e.g: +6 dB) emphasize the low-
frequencies.
Trigger Level (TRG. LEVEL): 1 — 100
Determines the amplitude of the input signal required to trig-
ger the distortion effect. This parameter, in conjunction. with
the RELEASE parameter below, functions effectively as a
noise gate to cut out hiss and noise when an input signal is
not present. TRG LEVEL should be set so that the effect is
activated
only when a note is played on the instrument
used.
22

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