Add the Half-Life VOX/HEV TTS presets

poc/public/app.js

@@ -2027,6 +2027,7 @@ function fillProfileControls() {
     $("#tts-echo-value").textContent = Number($("#tts-echo").value) > 0 ? $("#tts-echo").value : "off";
 
     $("#tts-words").checked = state.speech.words === true;
+    $("#tts-preset").value = state.speech.preset ?? "";
     $("#tts-vox").checked = state.speech.vox === true;
     $("#tts-vox-clean").checked = state.speech.voxClean === true;
     $("#tts-vox-clean").disabled = state.speech.vox !== true;
@@ -2064,7 +2065,8 @@ function effectOptions() {
         words: $("#tts-words").checked,
         wordGapMs: Number($("#tts-word-gap").value),
         vox: $("#tts-vox").checked,
-        voxClean: $("#tts-vox-clean").checked
+        voxClean: $("#tts-vox-clean").checked,
+        preset: $("#tts-preset").value || null
     };
 }
 function syncVoiceControls(voices, selected) {
@@ -2743,6 +2745,17 @@ function init() {
     $("#tts-vox").addEventListener("change", () => {
         $("#tts-vox-clean").disabled = !$("#tts-vox").checked;
         $("#tts-words").disabled = $("#tts-vox").checked;
+        // The vox preset implies VOX; turning VOX off means "factory/custom" again.
+        if (!$("#tts-vox").checked && $("#tts-preset").value === "vox") $("#tts-preset").value = "";
+        void saveSpeech();
+    });
+    $("#tts-preset").addEventListener("change", () => {
+        // Picking the VOX preset turns on VOX prosody so the panel matches the engine.
+        if ($("#tts-preset").value === "vox") {
+            $("#tts-vox").checked = true;
+            $("#tts-vox-clean").disabled = false;
+            $("#tts-words").disabled = true;
+        }
         void saveSpeech();
     });
     $("#tts-vox-clean").addEventListener("change", () => void saveSpeech());

poc/public/index.html

@@ -556,6 +556,15 @@
                             <input id="tts-word-gap" type="range" min="0" max="500" step="10" value="120" />
                             <span id="tts-word-gap-value" class="vk-mono vk-dim">120ms</span>
                         </div>
+                        <div class="vk-profile-row">
+                            <span class="vk-micro-label">preset</span>
+                            <select id="tts-preset" class="input">
+                                <option value="">factory</option>
+                                <option value="vox">VOX (Black Mesa)</option>
+                                <option value="hev">HEV suit</option>
+                            </select>
+                            <span class="vk-mono vk-dim">Keith Bell</span>
+                        </div>
                         <div class="vk-profile-row">
                             <label class="vk-tts-check">
                                 <input id="tts-vox" type="checkbox" /> VOX prosody