Roland XP-30 owner manual Modifying Pitch of a Rhythm Tone Pitch, PCH Velocity, PCH Envelope

■Modifying Pitch of a Rhythm

Tone (PITCH)

This group contains parameters that affect the pitch of the Rhythm Tone for each key.

PITCH

Specify the basic pitch for the Rhythm Tone.

Coarse (Coarse Tune)

Select the key corresponding to the pitch at which you wish to sound the Rhythm Tone.

Fine (Fine Tune)

Adjust the pitch in 1-cent steps (-50–+50 cents).

* One cent is 1/100th of a semitone.

Random (Random Pitch Depth)

If you want the pitch to change randomly each time you press a key, specify the width of the change. If you do not want random pitch change, set this parameter to 0. The value is in units of 1 cent.

Env Depth (Pitch Envelope Depth)

Adjust the effect of the Pitch Envelope. Higher settings will result in greater change. Negative (-) settings will invert the envelope.

PCH VELOCITY

Specify how key velocity will change the effect of the Pitch Envelope.

Velocity Sens (Pitch Envelope Velocity Sensitivity)

Use this parameter if you want key velocity to change the effect of the Pitch Envelope. Higher settings will result in a greater difference between strongly and softly played notes. Negative (-) settings will invert the change.

Velocity Time

(Pitch Envelope Time Velocity Sensitivity)

Use this parameter if you want key velocity to change the overall time of the Pitch Envelope. Higher settings will result in a greater time difference between strongly and softly played notes. Negative (-) settings will invert the change.

PCH ENVELOPE

Make settings for the Pitch Envelope (changes in pitch over time).

T1	T2	T3	T4
L1
			L3
Pitch				Time
key is		L2	key is	L4
pressed			released

Chapter 3. Creating Your Own Sounds

T1–4 (Pitch Envelope Time 1–4)

Specify the time over which the pitch will change from one

point to the next.

L1–4 (Pitch Envelope Level 1–4)

Specify the pitch change for each point relative to the basic

pitch.

■Changing the Tone (Filter) of a

Rhythm Tone (TVF)

The TVF (Time Variant Filter) uses a filter to modify the frequency characteristics of the sound.

FILTER

Make TVF filter settings.

Type (Filter Type)

Select the filter type.

OFF:filter not used.

LPF (Low Pass Filter): Cut the frequencies above the Cutoff Frequency. This is the most common type of filter used in synthesizers.

BPF (Band Pass Filter): Pass only the frequencies in the area of the Cutoff Frequency.

HPF (High Pass Filter): Cut the frequencies below the Cutoff Frequency.

PKG (Peaking Filter): Emphasize the frequencies in the area of the Cutoff Frequency.

Cutoff (Cutoff Frequency)

Set the basic frequency of the filter.

Resonance

Emphasize the frequencies in the area of the Cutoff Frequency. For some settings, excessive levels can cause oscillation and distortion.

LPF	BPF	HPF	PKG
Level
High
Frequency
Cutoff frequency
parameter value

Low

Env Depth (TVF Envelope Depth)

Adjust the depth of the TVF envelope. Higher settings will

result in greater change. Negative (-) values will invert the

envelope.

Chapter 3

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