Roland VS-1824 Owner's Manual download pdf (Page 64)

Algorithm List

Hum Canceler

Eliminates annoying hum (or “surge” sounding “boon”).

fig.08-59

Parameter (full name) Setting Function

HC (Hum Canceler): Removes hum.

Sw (Switch) On, Off Turns the hum canceler on or off.

Freq (Frequency) 20.0–800.0 Hz Sets the frequency of hum to be removed.

Width (Width) 10–40% Sets the width of the filter which will remove the hum.

Depth (Depth) 0–100 Sets the depth of the filter which will remove the hum.

Thresh (Threshold) 0–100 Sets the level at which the hum is to be removed.

RangeLo (Range Low) Unlimit, 20 - 2000 Hz Sets the lower limit of the frequency of hum to be removed.

RangeHi (Range High) 1.0 - 20.0 kHz, Unlimit Sets the upper limit of the frequency of hum to be removed.

NS (Noise Suppressor): Mutes noise in the silent mode.

Sw (Switch) On, Off Turns the noise suppressor on or off.

Thresh (Threshold) 0–100 Sets the level to start muting noise.

Release (Release) 0–100 Sets the time over which the volume will drop to 0 after the

noise starts being muted.

*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.

Hum Canceler

Noise

Suppressor

Noise

Suppressor

Input A

Input B

Output A

Output 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.

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Roland VS-1824 Owner's Manual Page 64