Google cloud api

I want to use google speech recognition services and need help to customize their code for my use. Wondering if you could help me with that? Thanks!

Below are sample codes for voice recognition. I want to convert my existing files to correct format, upload them to the Google server, and from there have them transcribed and get the text. I know that voice could be contextualized, so I want to be able to add keywords to make better transcripts.

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