6.6Adjusting Compression Settings

A compressor slightly reduces the dynamic range of a signal. This effect is perceived to quiet loud sounds and boost quiet sounds. A compressor smooths transients. Compressor parameters are set per channel. The Compressor dialog box has LEDs for the input and output signals.  

 

To adjust the compressor settings for a channel:

Step 1On the appliance Web UI’s main page, select DSP.

Step 2Select the Menu button for the channel.

Step 3From the drop-down menu, select Compressor.

Step 4Make desired adjustments using the controls described in Compressor Settings.

Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner.

Step 5Select Enable to apply the settings to the selected channel.

 

Table 7, Compressor Settings

Threshold

Sets the threshold level, which is the point where the signal activates the compressor circuit. The range is -135 to +21 dB.

Attack

Sets how fast the compressor turns on when the audio signal passes the threshold level. The range is 1 to 500 ms.

Hold

Sets how long the compressor is on after the signal has fallen below the threshold.

The range is 1 to 500 ms.

Decay

Sets the rate of turn off of the compressor after the signal is below the threshold.he range is 0 to 2000 ms.

Knee

Sets how the compressor reacts to signals once the threshold is reached. Increasing the knee level decreases the obvious tran­sition from the uncompressed to the com­pressed sound. The range is 1 to 100.

Ratio

Sets the compression ratio. For example, if the ration is set for 6 (6:1), the input signal must cross the threshold by 6 dB for the output level to increase by 1 dB. The range is 1 to 100.