# Filter

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXfeZwbvhREEPWMKBBOMmeNlWAvG3IHzSHGBJOzoQAseYPaHssFi2aU6GtBGIm3j1jTmLuCcaIbWGILKiRwtB741v-Y09gauiJd4ozD9I-4qdyiKMamque16nPbA61t--K6yUUm6HX8HmSFQLALI4pKx9rTevveRmGcEd58QJg?key=g9SNe8floSX29K5Ha8UM_Q" alt="" width="375"><figcaption></figcaption></figure>

* **Preset**

The preset is a pre-configured option for the filter, and generally, this setting alone produces high-quality data. The presets provided are **Stable**, **Balanced**, and **High Performance**. **Stable** is a setting resistant to noise, while **High Performance** is used when fast responsiveness is important.

### Parameters

After specifying the **Preset Name**, you can add a custom setting by clicking **Add**.\
**Process Mode** has two options: **IMAGE** and **LIVE\_STREAM/VIDEO**.&#x20;

Use the **IMAGE** mode for fine-tuning the filter, while the **Stable** preset is set to **LIVE\_STREAM/VIDEO** mode.\
**Filter Type** includes four options: **MOVING\_AVERAGE**, **BUTTERWORTH**, **KALMAN**, and **NONE**.&#x20;

The **Stable** preset uses **NONE**, while the others use **KALMAN** mode.\
**Average Window**, **Butterworth Cutoff Freq.**, and **Kalman Q/R** are coefficient settings for the respective filter modes.\
In **KALMAN** mode, if the value change is smaller than **AVG.**&#x20;

**Threshold (>Vel.)**, the Average filter is applied concurrently before the Kalman filter.

### Secondary Filter Configuration

When **Use 2nd Filter Coefficients** is checked, the selected **BlendShapes** can have 2nd filter coefficients applied through **Selection Keywords** input.\
To verify the blendShapes selected by keywords such as "jawopen," "mouth," or "left," check **Highlight Selected BlendShape**.&#x20;

The color of the blendShape names in the Values window will change to yellow.

Changes to the filter settings will be applied immediately when you click **Apply**, even if Actor mode is running. (The only exception is **Process Mode**, which requires a restart of Actor mode.)

Filter settings are applied equally to **Yanus CAM**, **USB Camera**, **Video File**, and **Generate Facial Data File**.

For managing preset settings, there are **Save**, **Add**, **Reload**, **Init**, and **Delete** buttons.&#x20;

You can save a preset with the same name if the **Preset Name** is unchanged, or change the name and click **Add**.&#x20;

**Reload** cancels changes and reloads settings from the file, and **Init** resets settings to the default. User-defined presets can be deleted, but the presets provided upon distribution cannot be deleted, though they can be modified.


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