Supports playback at the command line prompt

Added sounddevice as its currently well supported. Allows playback at the terminal/command prompt. 
Added speakers_xtts.pth to the modeldownload.json as it will be needed for finetuning in future updates of TTS 0.22.0+

modeldownload.json

@@ -8,6 +8,7 @@
         "model.pth": "https://huggingface.co/coqui/XTTS-v2/resolve/v2.0.2/model.pth?download=true",
         "dvae.pth": "https://huggingface.co/coqui/XTTS-v2/resolve/v2.0.2/dvae.pth?download=true",
         "mel_stats.pth": "https://huggingface.co/coqui/XTTS-v2/resolve/v2.0.2/mel_stats.pth?download=true",
+        "speakers_xtts.pth": "https://huggingface.co/coqui/XTTS-v2/resolve/v2.0.2/speakers_xtts.pth?download=true",
         "vocab.json": "https://huggingface.co/coqui/XTTS-v2/resolve/v2.0.2/vocab.json?download=true"
     }
 }

requirements_nvidia.txt

@@ -11,3 +11,4 @@ tqdm>=4.66.1
 importlib-metadata>=4.8.1
 packaging>=23.2
 pydantic>=1.10.13
+sounddevice>=0.4.6

requirements_other.txt

@@ -11,3 +11,4 @@ tqdm>=4.66.1
 importlib-metadata>=4.8.1
 packaging>=23.2
 pydantic>=1.10.13
+sounddevice>=0.4.6

tts_server.py

@@ -674,9 +674,15 @@ import re
 import uuid
 import numpy as np
 import soundfile as sf
+import sounddevice as sd
 from typing import Union, Dict
 from pydantic import BaseModel, ValidationError, Field
 
+def play_audio(file_path, volume):
+    data, fs = sf.read(file_path)
+    sd.play(volume * data, fs)
+    sd.wait()
+
 class Request(BaseModel):
     # Define the structure of the 'Request' class if needed
     pass
@@ -874,6 +880,8 @@ async def tts_generate(
             else:
                 cleaned_string = text_input
             await generate_audio(cleaned_string, character_voice_gen, language, output_file_path)
+        if autoplay:
+            play_audio(output_file_path, autoplay_volume)
         return JSONResponse(content={"status": "generate-success", "output_file_path": str(output_file_path), "output_file_url": str(output_file_url)}, status_code=200)
     except Exception as e:
         return JSONResponse(content={"status": "generate-failure", "error": "An error occurred"}, status_code=500)