Roland XV-88 owner manual Changing the Tone Filter of a Rhythm Tone TVF, 101

V-Sens (Pitch Envelope Velocity Sensitivity)

Keyboard playing dynamics can be used to control the depth of the pitch envelope. If you want the pitch envelope to have more effect for strongly played notes, set this parameter to a positive (+) value. If you want the pitch envelope to have less effect for strongly played notes, set this to a negative (-) value.

V-T1

(Pitch Envelope Time 1 Velocity Sensitivity)

Use this parameter when you want keyboard playing dynamics (velocity) to affect T1 (Time 1) of the pitch envelope. Positive (+) settings will cause T1 time to speed up for strongly played notes, and negative (-) settings will cause it to slow down.

V-T4

(Pitch Envelope Time 4 Velocity Sensitivity)

Use this parameter when you want key release speed to impact on T4 (Time 4) value of the pitch envelope. If you want T4 time to be speeded up for quickly released notes, set this parameter to a positive (+) value. If you want it to be slowed down, set this to a negative (-) value.

L0 (Pitch Envelope Level 0)

Specifies the pitch envelope level (L0). Pitch Envelope Level 0 determines the degree to which the pitch of the sound at the instant the key is pressed is altered relative to the reference pitch (the Coarse Tune or Fine Tune value set in the PITCH page). Positive (+) settings will cause the pitch to be higher than the standard pitch, and negative (-) settings will cause it to be lower.

T1–T4 (Pitch Envelope Time 1–4)

Specify the pitch envelope times (T1–T4). Larger values result in longer times until the next pitch is reached (for instance, T2 controls the time from L1 until L2 is reached).

L1–L4 (Pitch Envelope Level 1–4)

Set the level (L1–L4) for the pitch envelope. It determines how much the pitch changes from the reference pitch (the value set with Coarse Tune or Fine Tune on the PITCH page) at each point. Positive (+) settings will cause the pitch to be higher than the standard pitch, and negative (-) settings will cause it to be lower.

T1	T2	T3	T4
Pitch L0			Time
L1
			L3
Note on			Note off
		L2	L4

Chapter 6. Creating Rhythm Sets

Changing the Tone (Filter) of a Rhythm Tone (TVF)

Here you can make settings for the TVF (Time Variant Filter). This allows you to change a Rhythm Tone’s timbral content by altering its brightness or thickness.

TVF FILTER

Type (Filter Type)

Selects the filter type. A filter is a function that cuts off a specific frequency band to change a sounds brightness, thickness, and other qualities.

OFF: No filter is used.

LPF: A Low Pass Filter reduces the volume of frequencies above the Cutoff frequency (Cutoff parameter) in order to round off, or un-brighten, the sound. This is the most common filter used in synthesizers.

BPF: A Band pass filter reduces the volume of frequencies below and above the cutoff frequency range. This can be useful when creating distinctive sounds.

HPF: A High Pass Filter reduces the volume of the frequencies below the cutoff frequency. This is suitable for creating percussive sounds emphasizing their higher ones. PKG: A Peaking Filter emphasizes frequencies around the cutoff frequency by raising their level. You can use this to create wah-wah effects by employing an LFO to change the cutoff frequency cyclically.

LPF2: Low Pass Filter 2. Although frequency components above the Cutoff frequency (Cutoff parameter) are cut, the sensitivity of this filter is half that of the LPF. This makes it a comparatively warmer low pass filter. This filter is good for use with simulated instrument sounds such as the acoustic piano.

LPF3: Low Pass Filter 3. Although frequency components above the Cutoff frequency (Cutoff parameter) are cut, the sensitivity of this filter changes according to the Cutoff frequency. While this filter is also good for use with simulated acoustic instrument sounds, the nuance it exhibits differs from that of the LPF2, even with the same TVF Envelope settings.

If you set LPF2 or LPF3, the setting for the Resonance parameter will be ignored.

Chapter 6

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