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# ContextSize

The `ContextSize` parameter sets the group size to use when combining features during training.

The default value of 3 is generally suitable for most data. However, if you have poor quality audio data, a lower value can improve the results, because it is more robust to errors in the underlying feature process. In general, HPE recommends that you use a value of 3 for broadband data, and 2 for telephony.

*You must set the value of this configuration parameter by setting the corresponding action parameter.

Type: | Integer
Default: | 3
Allowed Range: | Minimum: 1 Maximum: 5
Required: | No
Configuration Section: | lidtrain module
Example: | `ContextSize=4`
See also: | Context (action parameter)

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