Initial Commit

Assets/Oculus/Voice/Samples/TTSVoices/Scripts/TTSSpeakerEffectSelect.cs

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+using System.Text;
+using UnityEngine;
+using Meta.WitAi;
+
+namespace Meta.Voice.Samples.TTSVoices
+{
+    /// <summary>
+    /// A demo script that uses two dropdown menus to adjust the
+    /// SSML tags of a TTSSpeaker.
+    /// </summary>
+    public class TTSSpeakerEffectSelect : TTSSpeakerObserver
+    {
+        [Header("Effect Settings")]
+        [SerializeField] [Tooltip("Dropdown used for character selection")]
+        private SimpleDropdownList _characterDropdown;
+        [SerializeField] [Tooltip("Dropdown used for environment selection")]
+        private SimpleDropdownList _environmentDropdown;
+
+        // Supported IDs
+        private const string NONE_ID = "NONE";
+        private static readonly string[] CHARACTER_IDS = new [] {NONE_ID, "CHIPMUNK", "MONSTER", "ROBOT", "DAEMON"};
+        private static readonly string[] ENVIRONMENT_IDS = new [] {NONE_ID, "REVERB", "ROOM", "PHONE", "PA", "CATHEDRAL"};
+
+        protected override void OnEnable()
+        {
+            base.OnEnable();
+            RefreshDropdowns();
+            _characterDropdown.OnIndexSelected.AddListener(OnCharacterSelected);
+            _environmentDropdown.OnIndexSelected.AddListener(OnEnvironmentSelected);
+        }
+        protected override void OnDisable()
+        {
+            base.OnDisable();
+            _characterDropdown.OnIndexSelected.RemoveListener(OnCharacterSelected);
+            _environmentDropdown.OnIndexSelected.RemoveListener(OnEnvironmentSelected);
+        }
+
+        // Refresh dropdown using voice settings
+        private void RefreshDropdowns()
+        {
+            if (!Speaker)
+            {
+                VLog.W("No speaker found");
+                return;
+            }
+
+            // Refresh characters
+            RefreshDropdown("character", _characterDropdown, CHARACTER_IDS);
+
+            // Refresh environments
+            RefreshDropdown("environments", _environmentDropdown, ENVIRONMENT_IDS);
+        }
+        // Refresh a specific dropdown
+        private void RefreshDropdown(string id, SimpleDropdownList dropdown, string[] options)
+        {
+            if (!dropdown)
+            {
+                VLog.W($"No {id} dropdown found");
+                return;
+            }
+            if (options == null || options.Length == 0)
+            {
+                VLog.W($"No {id} options found");
+                return;
+            }
+
+            // Load dropdown & select first index
+            dropdown.LoadDropdown(options);
+            dropdown.SelectOption(0);
+        }
+
+        // Apply voice on option select
+        private void OnCharacterSelected(int newIndex)
+        {
+            RefreshSsml();
+        }
+
+        // Apply voice on option select
+        private void OnEnvironmentSelected(int newIndex)
+        {
+            RefreshSsml();
+        }
+
+        // Refresh speaker ssml
+        private void RefreshSsml()
+        {
+            if (!Speaker)
+            {
+                VLog.W("No speaker found");
+                return;
+            }
+
+            // Get SSMLs
+            StringBuilder prepend = new StringBuilder();
+            StringBuilder append = new StringBuilder();
+
+            // Add ssml tags
+            prepend.Append("<speak>");
+            append.Append("</speak>");
+
+            // Get character & environment ids
+            string characterId = _characterDropdown.SelectedOption;
+            if (string.Equals(characterId, NONE_ID))
+            {
+                characterId = null;
+            }
+            string environmentId = _environmentDropdown.SelectedOption;
+            if (string.Equals(environmentId, NONE_ID))
+            {
+                environmentId = null;
+            }
+
+            // Add sfx tag
+            bool hasCharacter = !string.IsNullOrEmpty(characterId);
+            bool hasEnvironment = !string.IsNullOrEmpty(environmentId);
+            if (hasCharacter || hasEnvironment)
+            {
+                // Add prefix & postfix
+                prepend.Append("<sfx");
+                append.Insert(0, "</sfx>");
+
+                // Add character
+                if (hasCharacter)
+                {
+                    prepend.Append($" character=\"{characterId.ToLower()}\"");
+                }
+                // Add environment
+                if (hasEnvironment)
+                {
+                    prepend.Append($" environment=\"{environmentId.ToLower()}\"");
+                }
+
+                // Finalize
+                prepend.Append(">");
+            }
+
+            // Set SSML
+            Speaker.PrependedText = prepend.ToString();
+            Speaker.AppendedText = append.ToString();
+        }
+    }
+}