Google text-to-speech from file in terminal

vocab.sh

#!/usr/bin/env bash

# jq and gcloud are prerequisites 
# voices: https://cloud.google.com/text-to-speech/docs/voices

export GOOGLE_APPLICATION_CREDENTIALS="gcloud.json" # Create your own
accessToken=$(gcloud auth application-default print-access-token)

translate() {
curl --silent -H "Authorization: Bearer "${accessToken} \
  -H "Content-Type: application/json; charset=utf-8" \
  --data "{
    'input':{
      'text':'$2'
    },
    'voice':{
      'languageCode':'en-gb',
      'name':'en-GB-Standard-A',
      'ssmlGender':'FEMALE'
    },
    'audioConfig':{
      'audioEncoding':'MP3'
    }
  }" "https://texttospeech.googleapis.com/v1/text:synthesize" | jq '.audioContent' -r | base64  --decode > audio/$1.mp3
}

while IFS=' ' read -r id text
do
  echo ${id}
  translate ${id} ${text}
done < vocab.txt

vocab.txt

id1 tea
id2 apple
id3 banana
id4 beer