M-Audio NRV10, User Manual

6 

5. If you wish to reduce the volume of the signal, rather than mute it when the 
microphone signal falls below the threshold setting, move the 

Expander-Gate Ratio 

Control

 of channel 1 counterclockwise, until you achieve the desired result. 

This 

process is commonly referred to as

"downward

expansion." 

6. 

By adjusting the 

Expander-Gate Attack Control

, you can adjust how fast the signal 

reduces to the setting of the 

Expander-Gate Ratio Control

, after the signal falls below 

the threshold setting of the Expander-Gate. 

The fully counterclockwise position yields 

the fastest "attack," and the fully clockwise position yields the slowest "attack." 

7. By adjusting the 

Expander-Gate Release Control

, you can adjust how fast the signal 

"un-mutes," or increases from the setting of the 

Expander-Gate Ratio Control

, after the 

signal exceeds the threshold setting of the Expander-Gate. 

The fully counterclockwise 

position yields the fastest "release," and the fully clockwise position yields the slowest 
"release." 

1.2.2.2

Applying the Compressor: 

A Compressor reduces the dynamic range of an audio signal (the difference between 
the loudest and softest sound produced). 

For example, a song might include relatively 

quiet vocals in the verse, with significantly louder vocals in the chorus. 

The Compressor 

can help compensate for the difference in loudness between the two song sections. 
Once you have set a proper input level for the microphone (directly on the NRV10 
Mixer), follow these steps to apply the Compressor of the NRV10 interFX

software's first 

channel to the microphone signal. 

The Compressor is located below the Expander-

Gate of each NRV10 interFX channel, and is labeled "Comp": 

1. By default, NRV10 interFX disables all Compressors. 

To enable the Compressor on 

channel 1, click the 

Compressor Bypass Button

 of channel 1. 

When the Compressor is 

not bypassed, the 

Compressor Bypass Button

 does not display a red LED. 

2. Move the 

Compressor Ratio Control

 of channel 1 to approximately 9 o'clock. 

3. Move the 

Compressor Threshold Control

 of channel 1 fully clockwise. 

4. As you sing or play an instrument into the microphone, slowly move the 

Compressor 

Threshold Control

 of channel 1 counterclockwise. 

At some position (depending on how 

loudly you are singing or playing), this movement causes your microphone signal to 
reduce in volume. 

Whenever the microphone signal exceeds the threshold setting of 

the Compressor, the Compressor reduces the volume of the signal. 

5. The 

Compressor Ratio Control 

determines exactly how much the Compressor 

reduces the signal, once the signal exceeds the threshold setting of the Compressor. 
The fully counterclockwise position yields minimum compression, while the fully 
clockwise position yields maximum compression, or "limiting."