Changing the channel properties and number of channels
The ” ” and “-” buttons (green marking) can be used to add more channels (up to 31) or remove them again. The red marker shows the frequency assignment per controller (channel). This can even be defined separately for each audio channel, so pay attention to what has been set.
Working with special audio filters and how they work
Audio filters (marked in blue) are essential tools in sound processing and sound engineering. Each of these filter types has its own specific characteristics and applications that make it suitable for certain scenarios in audio processing and sound design. Each filter type therefore has specific characteristics and applications, which I would like to explain to you in simplified terms:
- Bell filter
This filter influences frequencies in a bell-shaped curve around a central point. It is often used in parametric equalizers to boost or cut certain frequency ranges. - Low-pass filter
A low-pass filter allows frequencies below a certain cut-off frequency to pass and attenuates higher frequencies. It is used to reduce or eliminate high frequencies, e.g. in subwoofer processing. - High-pass filter
The counterpart to the low-pass filter. It allows frequencies above a certain cut-off frequency to pass and attenuates lower frequencies. Useful for removing noise or unwanted low tones. - Bandpass filter
This filter only allows frequencies within a certain range to pass and blocks frequencies outside this range. It is often used in radio communication systems and sound processing. - High and low frequency filters (shelf filters)
These filters boost or cut frequencies above or below a certain cut-off frequency. They are used to influence the overall sound in the highs or lows without isolating specific frequencies. - Notch filter
A notch filter removes or attenuates a very narrow frequency bandwidth, often used to eliminate feedback or unwanted frequencies. - All-pass filter
An all-pass filter changes the phase of frequency components of a signal without affecting their amplitude. It is often used in digital audio applications for phase correction. - Butterworth filter
Known for its flat frequency response in the passband. Butterworth filters offer a good compromise between amplitude and phase response and are often used in audio and electronics applications. - Linkwitz-Riley filter
This type of filter is popular in crossover networks for loudspeaker systems. It combines two Butterworth filters to achieve a steeper slope and a perfect phase match.
Exporting the settings
The translation here is somewhat unfortunate, but you can also export the current settings for third parties (or a data backup) by clicking on “Execute”:
Another input window then opens, to which you add a file name and fill it in:
You can export both the filter settings and just the graphic EQ in Audacity format.
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