# Statistical Multiplexing Tab

By default, statistical multiplexing is disabled for multiplexing services.

To enable Statistical Bitrate allocation, tick the corresponding box.

To add additional statistical multiplexing pools, click the _Add Pool_ button.

![Mux Statmux Tab](/_machine-assets/ef7e2ffe6ebeba4d1300e75ac2995184029f794109b2799a1cdbb4cd2fc88b5e.png)

## Statmux Advanced Settings

These settings are only for advanced configurations. Default values should be suitable for the majority of use cases.

![Mux Statmux Tab advanced](/_machine-assets/ecac1bad276e9b0ef4eb2dd1dafca9bd2b2b26b3f1ad8d276eb3927d29d09d48.png)

| Parameter name                      | Description                                                                                                                                                      | Possible values                         |
| ----------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------- |
| Minimum bitrate multiplier          | Controls the next minimum bitrate for each statmux interval. Lower values results in faster bitrate decrease                                                     | Floating point values between 0.1 and 1 |
| Priority rate factor                | Adjusts the strength of the priorities rate factor. Higher values result in greater differences between the allocated bitrates for different levels of priority. | Floating point values between 0.1 and 1 |
| Show service names on statmux graph | Causes the statmux statistics page to display the encoding live service name instead of the Channel Id.                                                          | Tickbox, enabled by default             |

> **Info:** For encoding live service names to be showed in the statmux statistics page, tick the [**Service name in profile name**](/beam/live-encoder/parameters/encoding/video#general-parameters) parameter checkbox in the Live encoder configuration.

## Specific Pool Settings

To add pools, click the corresponding button.

For each pool, the following parameters must be specified:

| Parameter name              | Description                                                                                                      | Possible values             |
| :-------------------------- | :--------------------------------------------------------------------------------------------------------------- | :-------------------------- |
| Name                        | Unique name of the pool for this service.                                                                        | String of max 32 characters |
| Bitrate                     | Bitrate allocated to the current pool                                                                            | 0 to 200000000 bps          |
| Primary Network Interface   | Specifies the interface (as seen by the operating system) used to communicate with members of the statmux group. | String of max 32 characters |
| Secondary Network Interface | (Optional) Specifies a secondary, redundant, interface used to communicate with members of the statmux group.    | String of max 32 characters |
| Video Only                  | Specify if only Video components are to be included in the statmux pool.                                         | Dropdown menu: Off, On      |