fix issue in prev commit for microsoft

fix: microsft retrun arrayBuffer not buffer, convert it now to buffer

lib/synth-audio.js

@@ -170,8 +170,6 @@ async function synthAudio(client, logger, stats, { account_sid,
 
     client.setexAsync(key, EXPIRES, audioBuffer.toString('base64'))
       .catch((err) => logger.error(err, `error calling setex on key ${key}`));
-
-    if (['microsoft'].includes(vendor)) return {filePath, servedFromCache, rtt};
   }
 
   return new Promise((resolve, reject) => {
@@ -325,9 +323,9 @@ const synthMicrosoft = async(logger, {
               reject(cancellation.errorDetails);
               break;
             case ResultReason.SynthesizingAudioCompleted:
-              stats.increment('tts.count', ['vendor:microsoft', 'accepted:yes']);
-              resolve(result.audioData);
+              resolve(Buffer.from(result.audioData));
               synthesizer.close();
+              stats.increment('tts.count', ['vendor:microsoft', 'accepted:yes']);
               break;
             default:
               logger.info({result}, 'synthAudio: (Microsoft) unexpected result');

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@jambonz/speech-utils",
-  "version": "0.0.10",
+  "version": "0.0.12",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@jambonz/speech-utils",
-      "version": "0.0.10",
+      "version": "0.0.12",
       "license": "MIT",
       "dependencies": {
         "@aws-sdk/client-polly": "^3.303.0",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@jambonz/speech-utils",
-  "version": "0.0.10",
+  "version": "0.0.12",
   "description": "TTS-related speech utilities for jambonz",
   "main": "index.js",
   "author": "Dave Horton",