add examples/streaming_tts_with_subtitles.py

examples/streaming_tts_with_subtitles.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+
+"""
+Streaming TTS example with subtitles.
+
+This example is similar to the example streaming_tts.py, but it shows
+WordBoundary events to create subtitles using SubMaker.
+"""
+
+import asyncio
+
+import edge_tts
+
+
+async def main() -> None:
+    TEXT = "Hello World!"
+    VOICE = "en-GB-SoniaNeural"
+    OUTPUT_FILE = "test.mp3"
+    WEBVTT_FILE = "test.vtt"
+
+    communicate = edge_tts.Communicate(TEXT, VOICE)
+    submaker = edge_tts.SubMaker()
+    with open(OUTPUT_FILE, "wb") as file:
+        async for chunk in communicate.stream():
+            if chunk["type"] == "audio":
+                file.write(chunk["data"])
+            elif chunk["type"] == "WordBoundary":
+                submaker.create_sub((chunk["offset"], chunk["duration"]), chunk["text"])
+
+    with open(WEBVTT_FILE, "w", encoding="utf-8") as file:
+        file.write(submaker.generate_subs())
+
+
+if __name__ == "__main__":
+    asyncio.get_event_loop().run_until_complete(main())