QuickStart, Using Client Libraries
https://cloud.google.com/speech-to-text/docs/quickstart-client-libraries
This page shows how to send a speech recognition request to Cloud Speech-to-Text using the Google Cloud Client Libraries.
Cloud Speech-to-Text enables integration of Google speech recognition technologies into developer applications.
Audio data can be sent to the Speech-to-Text API, which returns a text transcription of the audio file.
More basic about the Cloud Speech-to-Text service can be referred to [1].
To begin
1 set up a GCP Console project
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[1]