How to Use Speechmatics Speaker Diarization

What is the essential answer to my question?

Speechmatics speaker diarization is a feature that analyzes an audio recording and labels which parts were spoken by which person. It does not try to identify people by name. Instead, it separates the audio into speaker turns and attaches a label such as Speaker 1 or Speaker 2 to each turn. This is useful for meetings, interviews, calls and transcripts where more than one voice is present. It is different from microphone selection or webcam video capture: diarization works on an audio file or audio stream that has already been recorded or is being provided to the Speechmatics service.

The result depends on the audio quality and recording conditions. Clear speech, limited overlap and good separation between voices generally produce more reliable speaker labels. The feature is only available where the chosen Speechmatics product or subscription supports it. Speechmatics may call the setting speaker diarization, speaker change detection, or simply diarization depending on the interface.

How do I complete this task successfully?

To use speaker diarization, first confirm that your Speechmatics account and plan include the feature. Then open the Speechmatics interface or API request that you are using for transcription. Locate the transcription or recognition settings. Look for a control named speaker diarization, speaker change detection, or diarization. Turn it on.

Next, select or upload the audio you want to process. Make sure the audio is accessible to the browser or application and that any required microphone or file permission has already been granted. If you are recording live audio, choose the intended microphone as the active input before starting the recording. If you are using a saved file, select the correct file or audio source.

Start the transcription or processing job. Wait for the job to finish. An observable completion check is that the transcript displays speaker labels. You should see separate speaker turns such as Speaker 1 and Speaker 2, or equivalent labels, attached to different parts of the transcript. Some Speechmatics outputs may also include timing information for each speaker turn or a speaker count.

• Ordered steps:
• 1. Confirm that speaker diarization is included in your Speechmatics plan or subscription.
• 2. Open the transcription request or Speechmatics interface.
• 3. Locate the diarization or speaker change detection setting.
• 4. Enable the setting.
• 5. Select the intended audio file or microphone input.
• 6. Run the transcription or processing job.
• 7. Check the transcript for separate labeled speaker turns.

If the output contains only one speaker label or no speaker separation, the feature may not be enabled, the plan may not include it, or the audio may be unsuitable for reliable separation. No supplied coverage describes a guaranteed success rate. Behavior can vary by Speechmatics product version, interface and subscription.