Media Server 25.4
Media Server Help

# BuildSpeaker

Trains Media Server to recognize a speaker.

You can only run this action after creating a speaker (using the action NewSpeaker) and adding audio samples for training (using the action AddSpeakerAudio).

Type: asynchronous

Parameter | Description | Required
--- | --- | ---
`database` | The name of the database that contains the speaker. | Yes
`gpudeviceid` | The device ID of the GPU to use, if you have enabled GPU acceleration and want to override the value of the GPUDeviceID configuration parameter. You can also set this parameter to `CPU`, to disable GPU acceleration for this action and use the CPU instead. | No
`identifier` | The identifier of the speaker that you want to train Media Server to recognize. | Yes
`numparallel` | The maximum number of threads to use to complete the training (default 1), subject to the limit specified by MaxNumParallel. | No

## Example

    /action=BuildSpeaker&database=news&identifier=newsreader1

## Response

This action is asynchronous, so Media Server always returns success accompanied by a token. You can use this token with the QueueInfo action to retrieve the status of your request.

The following is an example response from the QueueInfo action. Each `audio` element describes an individual audio clip.

    <autnresponse>
      <action>QUEUEINFO</action>
      <response>SUCCESS</response>
      <responsedata>
        <actions>
          <action>
            <status>Finished</status>
            <queued_time>2021-Feb-09 12:38:34</queued_time>
            <time_in_queue>0</time_in_queue>
            <process_start_time>2021-Feb-09 12:38:34</process_start_time>
            <time_processing>34</time_processing>
            <process_end_time>2021-Feb-09 12:39:08</process_end_time>
            <build>
              <audio>
                <index>1</index>
                <label>afb0009fcc61e3c1be8a100431a896b5</label>
                <status>trained</status>
              </audio>
            </build>
            <database>news</database>
            <identifier>newsreader1</identifier>
            <numaudio>1</numaudio>
            <numtrained>1</numtrained>
            <token>...</token>
          </action>
        </actions>
      </responsedata>
    </autnresponse>

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Media Server 25.4

Topic Title: BuildSpeaker