Roland VS-2400CD Appendices page 92

Algorithm List
Hum Canceler
Eliminates annoying hum (or "surge" sounding "boon").
fig.08-59
Input A
Input B
Removing hum
Hum is a noise with a certain low frequency. Hum is generated mostly due to ingression of part of alternating
current into signals as alternating current is converted into direct current in the power circuit. Sets Frequency
(Freq) to that according with the frequency of the power source (50 Hz/60 Hz), and hum with that frequency and
frequencies of its multiples can be removed.
Range Lo and Rage Hi can be used to specify the frequency band of hum to be removed.
Parameter (full name)
HC (Hum Canceler):
Sw (Switch)
Freq (Frequency)
Width (Width)
Depth (Depth)
Thresh (Threshold)
RangeLo (Range Low)
RangeHi (Range High)
NS (Noise Suppressor):
Sw (Switch)
Thresh (Threshold)
Release (Release)
*1: Setting to "Unlimit" means that the frequency that can be played back on this unit is the lower limit.
*2: Setting to "Unlimit" means that the frequency that can be played back on this unit is the upper limit.
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Hum Canceler
Hum Canceler
Setting
Removes hum.
On, Off
20.0–800.0 Hz
10–40%
0–100
0–100
Unlimit, 20 - 2000 Hz
1.0 - 20.0 kHz, Unlimit Sets the upper limit of the frequency of hum to be removed.
Mutes noise in the silent mode.
On, Off
0–100
0–100
Output A
Noise
Suppressor
Noise
Suppressor
Output B
Function
Turns the hum canceler on or off.
Sets the frequency of hum to be removed.
Sets the width of the filter which will remove the hum.
Sets the depth of the filter which will remove the hum.
Sets the level at which the hum is to be removed.
Sets the lower limit of the frequency of hum to be removed.
Turns the noise suppressor on or off.
Sets the level to start muting noise.
Sets the time over which the volume will drop to 0 after the
noise starts being muted.
*1
*2