The Patchwork Filter device filters which audio frequencies are cut and which are allowed to pass through. The cut frequencies are attenuated (reduced in volume), effectively turning them off. This changes the sound of the audio output.
The Patchwork Filter device can be used as a creative tool to produce an effect that changes the character of a sound. One common use is to pair a filter with a Low-Frequency Oscillator (LFO) device plugged into its Cutoff knob. This creates a "filter sweep" effect. It can also be used to clean up or tighten parts of the full song mix.
Different filter settings affect your audio in the following ways:
- Low-Pass: Audio frequencies above the Cutoff value are attenuated.
- High-Pass: Audio frequencies below the Cutoff value are attenuated.
- Band-Pass: Audio frequencies on either side of the Cutoff value are attenuated.
- Notch: Audio frequencies in the center of the Cutoff value are attenuated.
For help on how to find the Patchwork Filter device, see Using Devices.
If you're using multiple copies of a device on an island, it can be useful to rename them. Choosing names that relate to a device's purpose makes it easier to remember what each one does, and easier to find a specific device when using the Event Browser.
Device Options
Default values are bold.
| Option | Values | Description |
|---|---|---|
| 1. Enabled Switch | On, Off | When disabled, the audio data is passed through without any effect applied. |
| 2. Expand Buttons | Closed, Open | Expand the device to reveal more customization options. |
| 3. Audio Output Cable | N/A | Connect the Audio Output cable to a yellow Note In port. |
| 4. Mix knob | 1, choose a value between 0.0 - 1.0 | Sets how much of the audio output is processed. |
| 5. Onscreen Graph | N/A | Shows the effect of adjusting the device parameters (Filter Type, Cutoff and Resonance) by looking at changes to the onscreen graph. This works similarly to the LFO device Waveform Display. |
| 6. Filter Type carousel | Low-Pass, High-Pass, Band-Pass, Notch | Determines which filter is applied to the audio input. |
| 7. Resonance knob | 0.0, choose a value between 0.0-1.0 | Sets a range around the Cutoff frequency within which frequencies will be boosted. |
| 8. Cutoff knob | 1.0 (1000 Hz), choose a value between 0.01-15.0 (10 Hz-15000 Hz) | Sets the frequency at which the filter will be applied. For example, setting this to 5000 Hz with a Low-Pass filter type will cut off frequencies above 5000 Hz. |
| 9.Audio Input Port** | N/A | Connect the input device's cable to the audio input port. |
Other Device Options
In Create mode, walk up to the device and press E to open the Customize panel. You can also modify the options below using the Customize panel or the user options in UEFN.
| Option | Value | Description |
|---|---|---|
| Filter Type | Low-Pass, High-Pass, Band-Pass, Notch | Determines which filter is applied to the audio input. |
| Cutoff | 1.0 (1000 Hz), choose a value between 0.01-15.0 (10 Hz-15000 Hz) | Sets the frequency at which the filter will be applied. For example, setting this to 5000 Hz with a Low-Pass filter type will cut off frequencies above 5000 Hz. |
| Resonance | 0.0, choose a value between 0.0-1.0 | Emphasizes the frequencies at the Cutoff value. High resonance values can create a whistling effect. |
| Mix | 1, choose a value between 0.0 - 1.0 | Sets how much of the audio output is processed. |
| Allow Cable Access | On, Off | Determines if the Patchwork Tool can access the cable input and output ports on the device. |
| Enabled on Phase | None, Always, Pre-Game Only, Gameplay Only | Determines the phases in which device is enabled. |
Direct Event Binding
Following are the direct event binding options for this device.
Functions
A function listens for an event on a device then performs an action.
- For any function, click the option, then Select Device to access and select from the Device dropdown menu.
- Once you've selected a device, click Select Event to bind the device to an event that will trigger the function for the device.
- If more than one device or event triggers a function, click the Add button to add a line and repeat these steps.
| Option | Description |
|---|---|
| Enable When Receiving From | This function enables the device when an event occurs. |
| Disable When Receiving From | This function disables the device when an event occurs. |
Events
An event tells another device when to perform a function.
- For any event option, click the option, then Select Device to access and select from the Device dropdown menu.
- Once you've selected a device, click Select Function to bind this event to a function for that device.
- If more than one function is triggered by the event, click the Add button to add a line and repeat these steps.
| Option | Description |
|---|---|
| On Enabled Send Event To | When the device is enabled, an event occurs, which triggers the selected function. |
| On Disabled Send Event To | When the device is disabled, an event occurs, which triggers the selected function. |