mcdsp.com
Page 15
Chrome Tone
User’s Manual
The Controls
Dynamic
Gives complete control over an envelope follower used to modulate the Wah
(or other selected filter) frequency. The Wah controls are:
• Threshold - the level at which the envelope follower is triggered. When
the input signal rises above the threshold, the envelope ‘opens’ at a rate
determined by the Attack control. When the input signal drops below the
threshold, the envelope ‘closes’ at a rate determined by the Decay control.
• Depth - the amount (positive or negative) the envelope follower affects the
Wah (or other filter) frequency (or Tremolo gain, or Chorus delay length).
• Attack - the rise time of the envelope follower.
• Decay - the fall time of the envelope follower.
• Mod - the amount (positive or negative) the envelope follower affects the
Auto section’s LFO Shape mix, Rate, or Depth amount.
• Split - separates the envelope follower signal into a left and right channel,
each with the reverse polarity of the other. This allows one channel to
increase the Wah filter (or other filter) frequency while the other channel
decreases the frequency.
• S/R/D - enable or disable the modulation of the Auto section’s LFO Shape,
Rate, and Depth.
• Input - selects incoming audio, side chain audio, MIDI note, MIDI velocity,
or MIDI controller (1-128) as the source from which the Dynamic envelope
follower is triggered.
Auto
Gives complete control over an LFO (low
frequency oscillator) used to modulate the Wah
(or other selected filter) frequency. The Wah
controls are:
• Shape - the mix between two selected LFO
waveforms. The two shapes can be selected
from popup menus on either side of the
Shape control. The second shape can also be a
multiple of the first shape (1x, 2x, 3x, or 4x).
• Rate - the speed of the LFO. There is a rate
multiplier control underneath the Rate control
for 0.1x, 1x, and 10x operation.
• Depth - the amount the Auto section affects
the Wah (or other filter) frequency.
• Spread - the phase difference in the LFO for
the left and right channel, up to 180 out of
phase.
• Sync - enable MIDI beat clock syncing in a
variety of beat intervals.
• Groove - move the LFO within the MIDI beat
clock timing to allow the peaks of the LFO
waveform to hit (or miss) beat boundaries.
Input
Determines the
input gain of the
Wah configuration.
This control is also
available on the
Tremolo and Chorus
configurations.
Wah
Controls the filter type, frequency, and Q (resonance), and overall modulation
range. The Wah controls are:
• Filter Type - the popup under the ‘Wah’ text gives 14 filter options: 3 types of
band pass wah including the standard wah filter type found on many Wah
pedals, 3 high pass filters (12, 24, and 36 dB/oct), 3 low pass filters (12, 24, and
36 dB/oct), 3 phasors (2, 4, and 6 stages), a wah plus low pass filter, a high pass
plus wah filter, and an experimental wah filter.
• Freq - the frequency of the selected filter type. From this value the modulation
of the frequency is initiated.
• Q -the resonance, or peak-emphasis, of the selected filter.
• Range - the overall modulation range from the Dynamic and Auto sections.
Output
Determines the
output gain of the
Wah configuration.
This control is also
available on the
Tremolo and Chorus
configurations.
