Identifying PHI in a real-time stream - Amazon Transcribe

Identifying PHI in a real-time stream

You can identify Personal Health Information (PHI) in either HTTP/2 or WebSocket streams. When you activate PHI Identification, Amazon Transcribe Medical labels the PHI that it identifies in the transcription results. For information about the PHI that Amazon Transcribe Medical can identify, see Identifying personal health information (PHI) in a transcription.

To use the AWS Management Console to transcribe the speech picked up by your microphone and identify any PHI, choose Dictation as the audio input type, start the stream, and begin speaking into the microphone on your computer.

To identify PHI in a dictation using the AWS Management Console

  1. Sign in to the AWS Management Console.

  2. In the navigation pane, choose Real-time transcription.

  3. For Audio input type, choose Dictation.

  4. For Additional settings, choose PHI identification.

  5. Choose Start streaming and speak into the microphone.

  6. Choose Stop streaming to end the dictation.

To start an HTTP/2 stream with PHI Identification activated, use the StartMedicalStreamTranscription API and specify the following:

  • For LanguageCode, specify the language code for the language spoken in the stream. For US English, specify en-US.

  • For MediaSampleHertz, specify the sample rate of the audio.

  • For content-identification-type, specify PHI.

To a start a WebSocket stream with PHI Identification activated, use the following format to create a presigned URL.

GET wss://transcribestreaming.us-west-2.amazonaws.com:8443/medical-stream-transcription-websocket?
&X-Amz-Algorithm=AWS4-HMAC-SHA256 
&X-Amz-Credential=AKIAIOSFODNN7EXAMPLE%2F20220208%2Fus-west-2%2Ftranscribe%2Faws4_request 
&X-Amz-Date=20220208T235959Z 
&X-Amz-Expires=300 
&X-Amz-Security-Token=security-token 
&X-Amz-Signature=Signature Version 4 signature 
&X-Amz-SignedHeaders=host 
&language-code=en-US
&media-encoding=flac 
&sample-rate=16000 
&specialty=medical-specialty
&content-identification-type=PHI

Parameter definitions can be found in the API Reference; parameters common to all AWS API operations are listed in the Common Parameters section.