Boss Audio Systems BR-900CD owner manual Noise Suppressor, Octave, Phaser

Insert Effect Parameter Functions

■When “DIGITAL” is selected

Pre Filter OFF, ON

This filter decreases digital distortion. When turned off, you can create an intense lo-fi sound incorporating digital distortion.

Smpl Rate	OFF, 1/2–1/32
Modify the sample rate.
Bit	OFF, 15–1

Modify the number of data bits. If this is turned off, the number of data bits will be unchanged. If an extremely low number of bits is selected, loud noise may appear even when there is no sound, depending on the input source. In such cases, raise the threshold of the noise suppressor.

Noise Suppressor

This effect reduces the noise and hum. Since it suppresses the noise in synchronization with the envelope of the sound (the way in which the sound decays over time), it has very little effect on the sound, and does not harm the natural character of the sound.

On/Off OFF, ON

This parameter turns the noise suppressor effect on/off.

Threshold 0–100

Adjust this parameter as appropriate for the volume of the noise. If the noise level is high, a higher setting is appropriate. If the noise level is low, a lower setting is appropriate. Adjust this value until the decay of the sound is as natural as possible.

Post Fltr	OFF, ON	* High settings for the Threshold parameter may result in there being no
This filter decreases the digital distortion produced by lo-fi.		sound when you play with your instruments volume turned down.
By turning this off, you can create an extremely lo-fi sound.		Release	0–100
Fx Level	0–100
		Adjusts the time from when the noise suppressor begins to function
Adjust the volume of the lo-fi sound.		until volume reaches “0.”

Section 3

Dir Level 0–100

Adjusts the volume of the direct sound.

Modify Fil

This is a filter featuring a wide range of possible settings (modifiable filter). Select different types to get a variety of different filter effects.

OFF:

The modify filter will not be used.

LPF:

The effect will function as a low pass filter.

BPF:

The effect will function as a band pass filter.

Octave

This adds a note one octave lower, creating a richer sound.

On/Off OFF, ON

This parameter turns the octave effect on/off.

Oct Level 0–100

This adjusts the volume of the sound one octave below.

Dir Level 0–100

Adjusts the volume of the direct sound.

HPF:

The effect will function as a high pass filter.

Cutoff F	0–100
Adjust the cutoff frequency.
Resonance	0–100
Adjust the resonance.
Gain	0–24 dB

Adjust the volume level of the sound that has passed through the modify filter.

Phaser

By adding varied-phase portions to the direct sound, the phaser effect gives a whooshing, swirling character to the sound.

*This effect can be used when the MODULATION “Type” parameter is set to “PHASER.”

On/Off OFF, ON

This parameter turns the phaser effect on/off.

Rate 0–100

This sets the rate of the Phaser effect.

Depth 0–100

Determines the depth of the Phaser effect.

Manual 0–100

Adjusts the center frequency of the phaser effect.

Resonance 0–100

Determines the amount of resonance (feedback). Increasing the value will emphasize the effect, creating a more unusual sound.

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