Update app.py

app.py

@@ -31,7 +31,7 @@ config_path = hf_hub_download(repo_id="fahadqazi/piper-sindhi", filename="model.
 voice = PiperVoice.load(model_path=model_path, config_path=config_path, use_cuda=device=="cuda")
 
 synthesize_args = {
-    "speaker_id": 1,
+    "speaker_id": 0,
     "sentence_silence": 0.5
 }