speech

Google Cloud Speech Samples

This project includes samples for calling the Google Cloud Speech API

Installing Dependencies

Install the dependencies, namely google_api_speech, using Mix:

mix deps.get

Authentication

Authentication is typically done through Application Default Credentials which means you do not have to change the code to authenticate as long as your environment has credentials. Start by creating a Service Account key file. This file can be used to authenticate to Google Cloud Platform services from any environment. To use the file, set the GOOGLE_APPLICATION_CREDENTIALS environment variable to the path to the key file, for example:

export GOOGLE_APPLICATION_CREDENTIALS=/path/to/service_account.json

Running the Samples

Use Interactive Elixir and Mix to compile and run the samples

iex -S mix

Now you can run the samples! For example, to transcribe an audio file, type the following into the Interactive Elixir shell:

iex(1)> GoogleApi.Speech.Samples.recognize("gs://elixir-samples/audio.raw", :LINEAR16, 32000)
how old is the Brooklyn Bridge
:ok

To use your own sample audio sample, upload an audio file to Cloud Storage. You will need to provide the correct encoding and sample rate to the API.