Pitch modulation

Pitch modulation and modification plays an important role in the Woovebox' sound synthesis engine.

It provides anything from vibrato, to "old school" arpeggios and glissando effects, to additional harmonic content complexity for FM patches.

Pitch page

1. L1.Md LFO 1 Mode

Specifies a pitch LFO source for oscillator one, and how this source should be quantized (if at all). A number of modes are available;

• nrML ("normal"); no quantization is applied
• Chrd ("chord"); quantization is performed to the pitch of the nearest playing chord note. This mode is particularly useful to create chip tune "fake chord" arpeggios.
• Scal ("scale"); quantization is performed to the pitch of the nearest note of the selected song scale.
• Octv ("octave"); quantization is performed to the pitch of the nearest note of an octave (12 semitones).
• nrM.2 ("normal, use LFO 2"); LFO 2 is applied to oscillator one and no quantization is applied
  
• Chd.2 ("chord, use LFO 2"); LFO 2 is applied to oscillator one, and quantization is performed to the pitch of the nearest playing chord note. This mode is particularly useful to create chip tune "fake chord" arpeggios.
• Scl.2 ("scale, use LFO 2"); LFO 2 is applied to oscillator one, quantization is performed to the pitch of the nearest note of the selected song scale.
• Oct.2 ("octave, use LFO 2"); LFO 2 is applied to oscillator one, quantization is performed to the pitch of the nearest note of an octave (12 semitones).

Note that applying LFO 2 to oscillator one by choosing one of the nrm.2, Chd.2, Scl.2 or Oct.2 settings is a quick and convenient way to apply the same LFO to both Osc1 and Osc2 oscillators. The freeing up of one of the LFOs this way may be used in future versions of the firmware for enhanced sound design capabilities.

2. L2.Md LFO 2 Mode

Specifies a pitch LFO source for oscillator two, and how this source should be quantized (if at all). A number of modes are available;

• nrML ("normal"); no quantization is applied
• Chrd ("chord"); quantization is performed to the pitch of the nearest playing chord note. This mode is particularly useful to create chip tune "fake chord" arpeggios.
• Scal ("scale"); quantization is performed to the pitch of the nearest note of the selected song scale.
• Octv ("octave"); quantization is performed to the pitch of the nearest note of an octave (12 semitones).
• nrM.1 ("normal, use LFO 1"); LFO 1 is applied to oscillator two and no quantization is applied
  
• Chd.1 ("chord, use LFO 1"); LFO 1 is applied to oscillator two, and quantization is performed to the pitch of the nearest playing chord note. This mode is particularly useful to create chip tune "fake chord" arpeggios.
• Scl.1 ("scale, use LFO 1"); LFO 1 is applied to oscillator two, quantization is performed to the pitch of the nearest note of the selected song scale.
• Oct.1 ("octave, use LFO 1"); LFO 1 is applied to oscillator two, quantization is performed to the pitch of the nearest note of an octave (12 semitones).

Note that applying LFO 1 to oscillator two by choosing one of the nrm.1, Chd.1, Scl.1 or Oct.21settings is a quick and convenient way to apply the same LFO to both Osc1 and Osc2 oscillators. The freeing up of one of the LFOs this way may be used in future versions of the firmware for enhanced sound design capabilities.

3. O3.Lv Oscillator 3 Level

Specifies the audible level (volume) of the Oscillator 3 sine wave oscillator. Values prefixed by o1 indicate oscillator 3 should adopt the pitch and amplitude modulation (envelope generators, LFOs, etc.) of oscillator 1. Values prefixed by o2 indicate oscillator 3 should adopt the pitch and amplitude modulation (envelope generators, LFOs, etc.) of oscillator 2. A value of "MUtEe" indicates Oscillator 3 should be muted.

4. O3.Oc Oscillator 3 Octave

Specifies an octave by which the pitch should be lowered or increased, relative to the parent oscillator (as specified by O3.Lv).

5. Prt.S Portamento Speed

Specifies how quick portamento should move from one pitch to another. The speed is expressed in step durations (e.g. the speed is dependent on your song's BPM). A value of "Off" will turn off portamento.

Please note that, in order to enable portamento, both a non-"off" speed and a non-0 probability must be set.

6. Prt.P Portamento Probability

Specifies the probability portamento ("slurring") is applied when playing consecutive notes. For consistent portamento set this parameter to 100%.

Please note that, in order to enable portamento, both a non-"off" speed and a non-0 probability must be set.

7. LEG.S Legato Speed

Specifies how quick legato should move from one pitch to another. The speed is expressed in step durations (e.g. the speed is dependent on your song's BPM). A value of "Off" will turn off Legato.

Please note that, in order to enable legato, both a non-"off" speed and a non-0 probability must be set.

8. LEG.P Legato Probability

Specifies the probability legato is applied when one note is still playing while another is triggered. For consistent legato set this parameter to 100%.

Please note that, in order to enable legato, both a non-"off" speed and a non-0 probability must be set.

9. L1.Wv LFO 1 Waveform

Waveform to use for LFO 1. Available waveforms are;

• Noise (random values)
• Sine wave
• Triangle wave
• Saw wave
• Square wave
  

10. L1.dp LFO 1 Depth

LFO 1 depth (-4.000 to 4.000 where 0 is off). Negative values change the waveform phase 180 degrees (e.g. waveform changes polarity). This value is in octaves, e.g. the LFOs can sweep 4 octaves up and down.

11. L1.rt LFO 2 rate

Specifies the rate (in steps) in which the LFO should complete a cycle.

12. L1.Ho LFO 1 Hold

Specifies a hold time in milliseconds for which pitch LFO for oscillator 1 should hold its value.

13. L2.Wv LFO 2 Waveform

Waveform to use for LFO 2. Available waveforms are;

• Noise (random values)
• Sine wave
• Triangle wave
• Saw wave
• Square wave
  

14. L2.dp LFO 2 Depth

LFO 2 depth (-4.000 to 4.000 where 0 is off). Negative values change the waveform phase 180 degrees (e.g. waveform changes polarity). This value is in octaves, e.g. the LFOs can sweep 4 octaves up and down.

15. L2.rt LFO 2 rate

Specifies the rate (in steps) in which the LFO should complete a cycle.

16. L2.Ho LFO 2 Hold

Specifies a hold time in milliseconds for which pitch LFO for oscillator 2 should hold its value.