polly_synthesize_speech.rb - AWS Code Sample


Produces an MP3 file containing the synthesized speech from a text file.

# Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. # # This file is licensed under the Apache License, Version 2.0 (the "License"). # You may not use this file except in compliance with the License. A copy of the # License is located at # # http://aws.amazon.com/apache2.0/ # # This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS # OF ANY KIND, either express or implied. See the License for the specific # language governing permissions and limitations under the License. require 'aws-sdk-polly' # In v2: require 'aws-sdk' begin # Get the filename from the command line if ARGV.empty?() puts 'You must supply a filename' exit 1 end filename = ARGV[0] # Open file and get the contents as a string if File.exist?(filename) contents = IO.read(filename) else puts 'No such file: ' + filename exit 1 end # Create an Amazon Polly client using # credentials from the shared credentials file ~/.aws/credentials # and the configuration (region) from the shared configuration file ~/.aws/config polly = Aws::Polly::Client.new resp = polly.synthesize_speech({ output_format: "mp3", text: contents, voice_id: "Joanna", }) # Save output # Get just the file name # abc/xyz.txt -> xyx.txt name = File.basename(filename) # Split up name so we get just the xyz part parts = name.split('.') first_part = parts[0] mp3_file = first_part + '.mp3' IO.copy_stream(resp.audio_stream, mp3_file) puts 'Wrote MP3 content to: ' + mp3_file rescue StandardError => ex puts 'Got error:' puts 'Error message:' puts ex.message end

Sample Details

Service: polly

Last tested: 2018-03-16

Author: Doug-AWS

Type: full-example