Difference between revisions of "Compressor"

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*'''ATT''' - Attack rate. Sets how fast the Compressor reduces its gain once the threshold is exceeded. Higher values equal faster response.  
 
*'''ATT''' - Attack rate. Sets how fast the Compressor reduces its gain once the threshold is exceeded. Higher values equal faster response.  
 
*'''REL''' - Release rate. Sets how fast the Compressor restores the gain once the signal has fallen below the threshold.  
 
*'''REL''' - Release rate. Sets how fast the Compressor restores the gain once the signal has fallen below the threshold.  
*'''LEVEL''' - Sets the output level of the block. This is the same control as on the page.  
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*'''LEVEL''' - Sets the output level of the block. This is the same control as on the MIX page.  
 
*'''KNEE''' - Sets the "knee" type. A soft knee gradually varies the compression ratio around the threshold whereas a hard knee switches from no compression to the selected compression ratio abruptly at the threshold. With high compression ratios a hard knee may produce undesirable artifacts. In this case set the knee type to '''SOFT'''.  
 
*'''KNEE''' - Sets the "knee" type. A soft knee gradually varies the compression ratio around the threshold whereas a hard knee switches from no compression to the selected compression ratio abruptly at the threshold. With high compression ratios a hard knee may produce undesirable artifacts. In this case set the knee type to '''SOFT'''.  
  

Revision as of 04:32, 15 July 2007

Compressor block.jpg

The Compressor reduces the dynamic range of the signal by lowering its gain when the input power exceeds a threshold. It is best placed at the start of an effects chain and is most effective when used with clean settings. Using a Compressor with high-gain distortion can lead to excessive noise or squealing. The Compressor can also be placed near the output of an effects chain if desired to even out the response if using, say, two different distortion types. The low-gain distortion can be followed with a Compressor to even out its response compared to a high-gain distortion. Otherwise the low-gain distortion will be too dynamic.

Parameters

  • THRSH - Threshold control. The Compressor reduces its gain when the input power exceeds this value.
  • COMP - Sets the gain reduction ratio. This is the ratio of input power to output power beyond the threshold. For example, if the threshold is -40 dB, the input signal is - 30 dB and the ratio is 2.0 the output will be -35 dB.
  • ATT - Attack rate. Sets how fast the Compressor reduces its gain once the threshold is exceeded. Higher values equal faster response.
  • REL - Release rate. Sets how fast the Compressor restores the gain once the signal has fallen below the threshold.
  • LEVEL - Sets the output level of the block. This is the same control as on the MIX page.
  • KNEE - Sets the "knee" type. A soft knee gradually varies the compression ratio around the threshold whereas a hard knee switches from no compression to the selected compression ratio abruptly at the threshold. With high compression ratios a hard knee may produce undesirable artifacts. In this case set the knee type to SOFT.