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# ClusterSpeechTel

The `ClusterSpeechTel` task clusters telephony speech into speaker segments. For example, if two speaker clusters are identified, the output labels are `Cluster_0` and `Cluster_1` respectively.

## Parameters

Parameter | Description | Required
--- | --- | ---
Type | The task name. Set to `ClusterSpeechTel`. | Yes
File | The input audio file. |
FixTime | A fixed size for speaker clusters. |
MaxNumSpeakers | The final maximum number of speakers to produce. |
MergeThresh | The threshold below which to merge clusters. |
MinNumSpeakers | The final minimum number of speakers to produce. |
NormFile | The acoustic normalization file to use. |
Out | The file that IDOL Speech Server writes task output to. |
SampleFrequency | The sample frequency of the audio file to process. |
SilThresh | The threshold between what the task identifies as silence and non-silence. |
SpeechThresh | The threshold between speech and non-speech (music or noise). |
SugdInputChannels | The channel layout of the input media file. |
SugdInputFrequency | The sampling rate of the input media file. |

## Example

`http://localhost:13000/action=AddTask&Type=ClusterSpeechTel&File=1h.wav&Lang=ENUK-tel&Out=outTel`

This action uses port `15000` to instruct IDOL Speech Server, which is located on the local machine, to cluster the data in the `1h.wav` telephony audio file into speaker segments, and to write the results to the `outTel` output file.

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