Boss BR-1200CD Owner's Manual page 311

Mode
Selection for the wah mode.
LPF:
This creates a wah effect over a wide frequency range.
BPF:
This creates a wah effect in a narrow frequency range.
HPF:
This provides a distinctive wah effect when applied to the bass
guitar sound.
Polarity
Selection for the direction in which the filter will change in response
to the input.
UP:
The frequency of the filter will rise.
DOWN:
The frequency of the filter will fall.
Sensitivity
Adjusts the sensitivity of the filter in the direction specified by the
polarity setting. Higher values will result in a stronger response.
When the setting is 0, the strength of the picking will have no effect.
Frequency
Adjusts the center frequency of the wah effect.
Peak
Adjusts the way in which the wah effect is applied to the area
around the center frequency. Lower values will produce a wah effect
over a wider area; higher values, a wah effect over a narrower area.
When the setting is 50, a standard wah sound will be produced.
* With a value of "50" a standard wah sound will be produced.
Depth
Adjusts the depth of the auto wah effect.
Level
This parameter adjusts the volume.
● When "AW" is selected
The effect will be applied automatically based on the volume of the
performance. Alternatively, it is also possible to apply wah in a
cyclic fashion.
Mode LPF, BPF, HPF (COSM OD BASS AMP only)
Selection for the wah mode.
LPF:
This creates a wah effect over a wide frequency range.
BPF:
This creates a wah effect in a narrow frequency range.
HPF:
This provides a distinctive wah effect when applied to the bass
guitar sound (COSM OD BASS AMP only).
LPF, BPF, HPF Polarity
Selection for the direction in which the filter will change in response
to the input.
UP:
The frequency of the filter will rise.
DOWN:
The frequency of the filter will fall.
Sensitivity
Adjusts the sensitivity of the filter in the direction specified by the
polarity setting. Higher values will result in a stronger response.
UP, DOWN
When the setting is 0, the strength of the picking will have no effect.
Frequency
Adjusts the center frequency of the wah effect.
Peak
Adjusts the way in which the wah effect is applied to the area
around the center frequency. Lower values will produce a wah effect
over a wider area; higher values, a wah effect over a narrower area.
0–100
When the setting is 50, a standard wah sound will be produced.
* With a value of "50" a standard wah sound will be produced.
Rate
Adjusts the frequency of the auto wah.
0–100
Depth
Adjusts the depth of the auto wah effect.
0–100
Level
This parameter adjusts the volume.
■ When algorithm other than "COSM OD GUITAR
Wah Type
0–100
Selects either touch wah "TOUCH" or pedal wah "PEDAL."
TOUCH:
0–100
The effect will function as a touch wah.
PEDAL:
The effect will function as a pedal wah.
Polarity
Selection for the direction in which the filter will change in response
to the input.
UP:
The frequency of the filter will rise.
DOWN:
The frequency of the filter will fall.
Sensitivity
Adjusts the sensitivity of the filter in the direction specified by the
polarity setting. Higher values will result in a stronger response.
When the setting is 0, the strength of the picking will have no effect.
Insert effect parameter functions
AMP" and "COSM OD BASS AMP" is selected
DOWN, UP
0–100
0–100
0–100
0–100
0–100
0–100
UP, DOWN
0–100
311