DictationInputManager: updated record functions to utilize coroutines.

Author: StephenHodgson

Assets/HoloToolkit/Input/Scripts/Microphone/DictationInputManager.cs

@@ -2,6 +2,7 @@
 // Licensed under the MIT License. See LICENSE in the project root for license information.
 
 using System;
+using System.Collections;
 using System.Text;
 using UnityEngine;
 using UnityEngine.Windows.Speech;
@@ -150,8 +151,6 @@ protected override void Awake()
 
         private void Update()
         {
-            //Debug.Log(dictationRecognizer.Status);
-
             if (recordingStarted && !Microphone.IsRecording(DeviceName) && dictationRecognizer.Status == SpeechSystemStatus.Running)
             {
                 recordingStarted = false;
@@ -173,12 +172,19 @@ protected override void OnDestroy()
         /// <summary>
         /// Turns on the dictation recognizer and begins recording audio from the default microphone.
         /// </summary>
-        public static void StartRecording()
+        public static IEnumerator StartRecording()
         {
-            PhraseRecognitionSystem.Shutdown();
+            if (PhraseRecognitionSystem.Status == SpeechSystemStatus.Running)
+            {
+                PhraseRecognitionSystem.Shutdown();
+            }
+
+            yield return PhraseRecognitionSystem.Status == SpeechSystemStatus.Stopped;
 
             dictationRecognizer.Start();
 
+            yield return dictationRecognizer.Status == SpeechSystemStatus.Running;
+
             recordingStarted = true;
 
             // Start recording from the microphone.
@@ -188,14 +194,16 @@ public static void StartRecording()
         /// <summary>
         /// Ends the recording session.
         /// </summary>
-        public static void StopRecording()
+        public static IEnumerator StopRecording()
         {
+            Microphone.End(DeviceName);
+
             if (dictationRecognizer.Status == SpeechSystemStatus.Running)
             {
                 dictationRecognizer.Stop();
             }
 
-            Microphone.End(DeviceName);
+            yield return dictationRecognizer.Status == SpeechSystemStatus.Stopped;
 
             PhraseRecognitionSystem.Restart();
         }

Assets/HoloToolkit/Input/Tests/Scripts/DictationRecordButton.cs

@@ -46,15 +46,15 @@ public void OnInputClicked(InputClickedEventData eventData)
             if (isRecording)
             {
                 isRecording = false;
-                DictationInputManager.StopRecording();
+                StartCoroutine(DictationInputManager.StopRecording());
                 speechToTextOutput.color = Color.white;
                 buttonRenderer.enabled = true;
                 recordLight.SetActive(false);
             }
             else
             {
                 isRecording = true;
-                DictationInputManager.StartRecording();
+                StartCoroutine(DictationInputManager.StartRecording());
                 speechToTextOutput.color = Color.green;
                 recordLight.SetActive(true);
                 buttonRenderer.enabled = false;