#58 - add support for platform (standard, or neural) when using aws tts

lib/tasks/say.js

@@ -25,7 +25,7 @@ class TaskSay extends Task {
     const vendor = hasVerbLevelTts ? this.synthesizer.vendor : cs.speechSynthesisVendor ;
     const language = hasVerbLevelTts ? this.synthesizer.language : cs.speechSynthesisLanguage ;
     const voice = hasVerbLevelTts ? this.synthesizer.voice : cs.speechSynthesisVoice ;
-
+    const platform = this.synthesizer.platform || 'standard';
     const salt = cs.callSid;
     const credentials = cs.getSpeechCredentials(vendor, 'tts');
 
@@ -48,6 +48,7 @@ class TaskSay extends Task {
           vendor,
           language,
           voice,
+          platform,
           salt,
           credentials
         }).catch((err) => {

lib/tasks/specs.json

@@ -369,6 +369,10 @@
       },
       "language": "string",
       "voice": "string",
+      "platform": {
+        "type": "string",
+        "enum": ["standard", "neural"]
+      },
       "gender": {
         "type": "string",
         "enum": ["MALE", "FEMALE", "NEUTRAL"]