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# SpeechSilClassification

The `SpeechSilClassification` task segments an audio file or stream by content, classifying each segment as either speech, non-speech, or music.

## Parameters

Parameter | Description | Required
--- | --- | ---
Type | The task name. Set to `SpeechSilClassification`. | Yes
AppDnnBase | The location of the `appResources` directory, which contains the DNN and `.ian` files to use. |
AppFrameDupl | The balance between performance and speed for audio preprocessing DNN classification. |
AudioUpsampling | Whether to allow audio upsampling if the input audio has a sample rate too low for the task. |
DoDialTones | Whether to include dial tones in addition to DTMF tones, if tone detection is enabled. |
DoToneClass | Whether to perform DTMF and dial tone identification. |
EndTime | The end of an audio section to process. |
File | The audio file to process. | Yes, if InputType is `File`.
InputType | The type of audio to process (file, binary data, or stream). |
MaxSegSize | The maximum audio class size in frames. |
MinSegSize | The minimum segment size in frames. |
Out | The file to write the results to. | Yes
Sfreq | The sample frequency of the audio file to process. |
SilThresh | The threshold between what the task identifies as silence and non-silence. |
SpeechBias | Whether to bias towards speech (rather than music, noise, or silence) in the identification of audio segments. |
SpeechThresh | The threshold between speech and non-speech (music or noise). |
StartTime | The beginning of an audio section to process. |
SugdInputChannels | The channel layout of the input media file. This parameter does not apply when InputType is `Stream`. |
SugdInputFrequency | The sampling rate of the input media file. This parameter does not apply when InputType is `Stream`. |

## Example

    http://localhost:15000/action=AddTask&Type=SpeechSilClassification&File=C:\Data\Conference.wav&Out=ConfClassification.ctm

This action segments and classifies the `Conference.wav` file and writes the results to the `ConfClassification.ctm` file.

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