google-cloud-text_to_speech-v1beta1

https://github.com/googleapis/google-cloud-ruby

Text-to-Speech converts text or Speech Synthesis Markup Language (SSML) input into audio data of natural human speech. Note that google-cloud-text_to_speech-v1beta1 is a version-specific client library. For most uses, we recommend installing the main client library google-cloud-text_to_speech instead. See the readme for more details.