The Mid Presence filter is a parametric mid filter that can work on any frequency of the audio signal (20 Hz to 20 kHz). A presence filter is typically used for isolating and boosting or limiting a specific portion of the audio signal, such as a voice or an instrument. It is useful for removing background hiss or to dampen sibilance from poorly recorded vocals. By specifying a frequency for the mid EQ you can set the target frequency. Adjust the Q curve to determine the range of frequencies affected by the gain setting (-24 to +24 dB). For example, by isolating a specific frequency of a voice, you can boost or limit its gain while adjusting the Q value to prevent other portions of the audio signal from being affected. The default Mid Presence filter setting is 1000 Hz with a gain of 0 dB and a Q setting of 2.0.
The following diagram illustrates the result of boosting gain around the frequency of 10 kHz using a Presence filter with a lower Q setting of 2.00.
The following diagram illustrates the result of boosting gain around the specified frequency of 10 kHz using a Presence filter with a higher Q setting of 6.50.
