Add the VOX prosody preference and panel controls

poc/src/tts.ts

@@ -34,6 +34,10 @@ export interface TtsOptions {
     words?: boolean;
     /** Silence between words in milliseconds, 0 to 500. */
     wordGapMs?: number;
+    /** NetTTS-style VOX prosody (Flextalk voices only). */
+    vox?: boolean;
+    /** VOX without the staccato wrapper. */
+    voxClean?: boolean;
 }
 
 export interface TtsEngine {
@@ -348,6 +352,8 @@ export class Tts {
                           .replace("{echo}", options.echo !== undefined ? String(options.echo) : "")
                           .replace("{words}", options.words ? "1" : "")
                           .replace("{word_gap_ms}", options.wordGapMs !== undefined ? String(options.wordGapMs) : "")
+                          .replace("{vox}", options.vox ? "1" : "")
+                          .replace("{vox_clean}", options.voxClean ? "1" : "")
                   )
             : ["espeak-ng", ...(options.voice ? ["-v", options.voice] : []), "-w", out, "-f", textFile];
 
@@ -371,7 +377,9 @@ export class Tts {
                     ...(options.words ? { VESKSLOP_TTS_WORDS: "1" } : {}),
                     ...(options.wordGapMs !== undefined
                         ? { VESKSLOP_TTS_WORD_GAP_MS: String(options.wordGapMs) }
-                        : {})
+                        : {}),
+                    ...(options.vox ? { VESKSLOP_TTS_VOX: "1" } : {}),
+                    ...(options.voxClean ? { VESKSLOP_TTS_VOX_CLEAN: "1" } : {})
                 },
                 stdio: ["ignore", "ignore", "pipe"]
             });