Difference between revisions of "Gate/expander"
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The expander module is sort of a “compressor in reverse”. When the signal level is below the threshold the gain is reduced. The Axe-Fx UltraTM gate/expander block can be used as a gate or expander (as the name suggests). | The expander module is sort of a “compressor in reverse”. When the signal level is below the threshold the gain is reduced. The Axe-Fx UltraTM gate/expander block can be used as a gate or expander (as the name suggests). | ||
| − | ==Parameters== | + | ===Parameters=== |
*'''THRSH''' - Threshold control. The Gate / Expander reduces its gain when the input power is below this value. | *'''THRSH''' - Threshold control. The Gate / Expander reduces its gain when the input power is below this value. | ||
*'''ATT''' - Attack time. Sets how fast the Gate / Expander restores the gain once the threshold is exceeded. Lower values equal faster response. | *'''ATT''' - Attack time. Sets how fast the Gate / Expander restores the gain once the threshold is exceeded. Lower values equal faster response. | ||
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*'''REL''' - Release time. Sets how fast the Gate / Expander reduces the gain once the signal has fallen below the threshold. | *'''REL''' - Release time. Sets how fast the Gate / Expander reduces the gain once the signal has fallen below the threshold. | ||
*'''RATIO''' - Sets the gain expansion ratio. This is the ratio of input power to output power below the threshold. If the input power is -40 dB and the threshold -30 dB and the ratio 2, the output power will be -60 dB (two dB reduction for every one dB below threshold). | *'''RATIO''' - Sets the gain expansion ratio. This is the ratio of input power to output power below the threshold. If the input power is -40 dB and the threshold -30 dB and the ratio 2, the output power will be -60 dB (two dB reduction for every one dB below threshold). | ||
| − | *'''SCSEL''' - Selects the sidechain input source. '''INPUT'' is the normal setting and selects the block input (sum of the rows feeding the block). The other settings allow isolating a single row as the sidechain input. The other rows are summed as usual. By using a row as the sidechain input you can use the compressor as a ducker or de-esser. | + | *'''SCSEL''' - Selects the sidechain input source. '''INPUT''' is the normal setting and selects the block input (sum of the rows feeding the block). The other settings allow isolating a single row as the sidechain input. The other rows are summed as usual. By using a row as the sidechain input you can use the compressor as a ducker or de-esser. |
*'''LOWCUT''' - Sets the frequency of a highpass filter on the sidechain input. | *'''LOWCUT''' - Sets the frequency of a highpass filter on the sidechain input. | ||
*'''HICUT''' - Sets the frequency of a lowpass filter on the sidechain input. | *'''HICUT''' - Sets the frequency of a lowpass filter on the sidechain input. | ||
Revision as of 08:01, 10 June 2007
The expander module is sort of a “compressor in reverse”. When the signal level is below the threshold the gain is reduced. The Axe-Fx UltraTM gate/expander block can be used as a gate or expander (as the name suggests).
Parameters
- THRSH - Threshold control. The Gate / Expander reduces its gain when the input power is below this value.
- ATT - Attack time. Sets how fast the Gate / Expander restores the gain once the threshold is exceeded. Lower values equal faster response.
- HOLD - Hold time. Sets how long the Gate / Expander holds the gate open once the threshold has been exceeded.
- REL - Release time. Sets how fast the Gate / Expander reduces the gain once the signal has fallen below the threshold.
- RATIO - Sets the gain expansion ratio. This is the ratio of input power to output power below the threshold. If the input power is -40 dB and the threshold -30 dB and the ratio 2, the output power will be -60 dB (two dB reduction for every one dB below threshold).
- SCSEL - Selects the sidechain input source. INPUT is the normal setting and selects the block input (sum of the rows feeding the block). The other settings allow isolating a single row as the sidechain input. The other rows are summed as usual. By using a row as the sidechain input you can use the compressor as a ducker or de-esser.
- LOWCUT - Sets the frequency of a highpass filter on the sidechain input.
- HICUT - Sets the frequency of a lowpass filter on the sidechain input.
