ruby implementation

app/models/speech.rb

@@ -0,0 +1,61 @@
+require 'google/cloud/translate'
+require 'pry-byebug'
+class Speech
+  def initialize(params = {})
+    @speech = Google::Cloud::Speech.new
+    @credentials = params[:creds]
+    keyfile = ENV["TRANSLATION_CREDENTIALS"]
+    creds = Google::Cloud::Translate::Credentials.new(keyfile)
+
+
+    @translate = Google::Cloud::Translate.new(
+      project_id: ENV["PROJECT_ID"],
+      credentials: creds
+      )
+
+    @streaming_config =
+      { config:
+        {
+          encoding: :LINEAR16,
+          sample_rate_hertz: 16000,
+          language_code: params[:language]
+        },
+        interim_results: true
+      }
+
+      @host_lang = params[:host_lang] || "en"
+      @recieve_lang = params[:recieve_lang] || "en"
+
+      @stream = @speech.streaming_recognize(@streaming_config)
+      @audio = ""
+  end
+
+
+  def write_to_stream(audio)
+      @stream.send(audio.split(",").map { |str| str.to_i }.pack("s<*"))
+  end
+
+  def stream
+    while true
+      break if @stream.stopped?
+      results = @stream.results
+
+      unless results.first.nil?
+        alt = results.first.alternatives
+        alt.each do |result|
+          puts "Original: #{result.transcript}"
+          puts "Translated: #{translate(result.transcript)}"
+        end
+        break
+      end
+    end
+
+    @stream.stop
+    @stream.wait_until_complete!
+  end
+
+  def translate(text)
+    trans = @translate.translate(text, from: @host_lang, to: @recieve_lang)
+    translation.text.gsub("&#39;", "'")
+  end
+end