Korg Electric Keyboard manual 1c B Filter B, 2 Mod.1 Filter1 Modulation1, 2a Keyboard Track

Reso.AMS (Resonance AMS)

[Off, (PEG, FEG, AEG, LFO, KT, EXT)]

Indicates the source that will control the “Resonance (A Res- onance)” level (☞ p.212 “AMS List”).

Intensity (AMS Intensity) [–99…+99]

Specifies the depth and direction of the effect that “Reso. AMS (Resonance AMS)” will have on the resonance level specified by “Resonance (A Resonance).”

For example, if Velocity has been selected, changes in key- board velocity will affect the resonance.

With positive (+) values, the resonance will increase as you play more strongly, and as you play more softly the reso- nance will approach the level specified by the “Resonance (A Resonance)” setting.

With negative (–) values, the resonance will decrease as you play more strongly, and as you play more softly the reso- nance will approach the level specified by the “Resonance (A Resonance)” setting.

The resonance level is determined by adding the “Reso- nance (A Resonance)” and “Intensity (AMS Intensity)” val- ues together.

The effect of resonance

Low Pass

Level

Low resonance value High resonance value

4.1–1c: B (Filter B)

This will be displayed if “Type (Filter1 Type)” (4.1–1a) is Low Pass & High Pass.

This filter cuts the low-frequency range that lies below the cutoff frequency.

By cutting the lower overtones, it lightens the tone.

	High Pass
	Level
	12dB/oct
	Frequency
Frequency (B Frequency)	[00…99]

Specifies the cutoff frequency of filter 1B.

■4.1–1d: UTILITY

☞“Write Program” (1.1–1c), “Copy Oscillator,” “Swap Oscillator” (2.1–1d)

4.1–2: Mod.1 (Filter1 Modulation1)

Indicates settings for keyboard tracking which modifies the tone by modulating the filter 1 cutoff frequency “Frequency (A/B Frequency),” and intensity settings for the filter 1 EG, etc.

4.1–2a

4.1–2b

4.1–2c 4.1–2d

4.1–2a: Keyboard Track

These settings specify keyboard tracking for the cutoff fre- quency of filter 1. The way in which the cutoff frequency is affected by the position of the key (on the keyboard) that you play can be specified by the Key: “Low” and “High,” Ramp: “Low” and “High” parameters.

Key:

Specifies the note numbers at which keyboard tracking will begin to be applied, and set the “Int. to A” and “(Int. to) B” parameters to specify the depth and direction of the change applied to filter 1 A and B.

For the range of notes between “Low (KBDTrk Key Low)” and “High (KBDTrk Key High),” the cutoff frequency will change according to the key location (pitch).

You can also input a value by playing a note on the key- board while you hold down the [ENTER] key.

Low (KBDTrk Key Low) [C–1…G9]

Keyboard tracking will apply to the range below the speci- fied note number.

High (KBDTrk Key High) [C–1…G9]

Keyboard tracking will apply to the range above the speci- fied note number.

Ramp (Ramp Setting):

Specifies the angle of keyboard tracking.

Low (KBDTrk Ramp Low)	[–99…+99]
High (KBDTrk Ramp High)	[–99…+99]

If “Int. to A (KBDTrk Int. to A)” and “Int. to B (KBDTrk Int. to B)” are set to +50, “Low (KBDTrk Ramp Low)” is set to –62and “High (KBDTrk Ramp High)” is set to +62, the angle of the change in cutoff frequency will correspond to the key location (pitch). This means that the oscillation that occurs when you increase the “Resonance (A Resonance)” (4.1–1b) will correspond to the keyboard location.

If you set “Low (KBDTrk Ramp Low)” to +43 and “High (KBDTrk Ramp High)” to –43, the cutoff frequency will not be affected by keyboard location. Use this setting when you do not want the cutoff frequency to change for each note.

How cutoff frequency is affected by keyboard location and the Ramp setting

(“Int. to A,” “Int. to B”=+50)

Cutoff frequency			High Ramp=+99
			High Ramp=+62
			High Ramp=0
Low Ramp=+99			High Ramp=–43
Low Ramp=+43			High Ramp=–99
Low Ramp=0
Low Ramp=–62			Key
	Low Key
		High Key
Low Ramp=–99
Int. to A (KBDTrk Int. to A)			[–99...+99]

Specifies the depth and direction of the effect on filter 1A produced by keyboard tracking settings “Low (KBDTrk Key Low),” “High (KBDTrk Key High),” “Low (KBDTrk Ramp Low),” and “High (KBDTrk Ramp High).”

With positive (+) settings, the effect will be in the same direction as the keyboard tracking settings.

With negative (–)settings, the effect will be in the opposite direction.

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