Using Google cloud platform to convert speech to text

Question

I am trying to create app for speech to text.
With the following JSON code I get results back:

        {
"config": {
            "encoding":"FLAC",
            "sampleRateHertz": 16000,
            "languageCode": "en-US",
            "enableWordTimeOffsets": false 
             }, 
    "audio": {"uri":"gs://cloud-samples-tests/speech/brooklyn.flac"  }
    }

I am using EncdDecd unit for EncodeFile function. The problem is when I am trying to pass my audio file as Base64 string with the following code:

        {
"config": {
            "encoding":"FLAC",
            "sampleRateHertz": 16000,
            "languageCode": "en-US",
            "enableWordTimeOffsets": false 
             }, 
    "audio": {
"content":"'+EncodeFile(myaudio_flac_filename)+'"  }
    }

What is the function to convert a WAV file to Base64 string?

Answer 1

Check out this answer: Binary to Base64 (Delphi)

If that doesn't work for some reason, let us know what version of Delphi you are on and what errors you are running into.