CONSOLE AI | Managing Channels (CP2) | 268
Filter Type Description
All Pass Frequency range is 20Hz to 20kHz. All pass changes the phase of the
audio signal at the set frequency.
High Pass Selectable frequency cutoff is 20Hz to 20kHz. Rolloff is 12dB/octave.
Level is fixed at 0dB.
Low Pass Selectable frequency cutoff is 20Hz to 20kHz. Rolloff is 12dB/octave.
Level is fixed at 0dB.
Notch Center frequency range is 20Hz to 20kHz. Bandwidth is from 0.05 to
5.00 octaves in 0.01 octave increments. Level is fixed at -80dB.
PEQ (Parametric Equalizer) Center frequency range is 20Hz to 20kHz in 0.01Hz increments.
Bandwidth is 0.05 to 5 octaves in 0.01 octave increments. Level range
is -15 to +15dB in 0.5dB increments.
Depending on the filter type you choose, some additional options become available.
6. (Optional) If you don’t want to use default values, change the filter options, as described in the table
below.
Option Description
Frequency The center frequency for the filter you are configuring. Range is from
20Hz to 20kHz in 1Hz increments. The default is 1kHz.
Gain (dB) The gain value for the filter you are configuring. Range is from -15 to
15dB. The default is 0dB.
Q Quality factor. the ratio of the center frequency divided by the
bandwidth. Q is the inverse of bandwidth, and the two parameters are
linked. Therefore changing the Q value also changes the bandwidth
value. Range is from 0.18 to 28.85.
Bandwidth The difference between the upper and lower points of a filter’s audio
passband. Bandwidth is the inverse of Q, and the two parameters are
linked. Hence changing the bandwidth value also changes the Q value.
The range is 0.05 to 5.00 octaves.
7. (Optional) Alternatively, you can drag the filter nodes in the filter graph to change some filter option
values.
8. Repeat the process for each filter you want to add.
9. Click Close.
Mute
10.To mute this channel, click the Mute button (the button changes to red if the channel is muted).
Gain
11.You can change the gain in any of the following ways:
• Drag the slider
• Type a value in the text box
• Click the incrementer and decrementer arrows beside the text box to set the value
Polarity
12.To reverse the polarity of the speaker channel, click the Polarity button.
If the polarity is reversed the button turns light green.
13.Click Close.
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