| import os |
| import requests |
| import uuid |
|
|
| DEEPGRAM_API_KEY = os.environ.get("DEEPGRAM_API_KEY", "ad59620bea7b23c52d31d273902839e950491bf2") |
| DEEPGRAM_TTS_URL = "https://api.deepgram.com/v1/speak" |
|
|
| AVAILABLE_VOICES = { |
| "Thalia (En-US - Conversational / Medical)": "aura-2-thalia-en", |
| "Luna (En-US - Warm & Empathetic)": "aura-2-luna-en", |
| "Stella (En-US - Professional & Crisp)": "aura-2-stella-en", |
| "Zeus (En-US - Authoritative Male)": "aura-2-zeus-en", |
| "Orion (En-US - Friendly Male)": "aura-2-orion-en" |
| } |
|
|
| def generate_voice_audio(text: str, voice_model: str = "aura-2-thalia-en") -> str: |
| """ |
| Calls Deepgram Aura-2 Text-to-Speech API to synthesize natural audio. |
| Returns filepath to generated .mp3 file. |
| """ |
| if not text or not text.strip(): |
| return None |
|
|
| headers = { |
| "Authorization": f"Token {DEEPGRAM_API_KEY}", |
| "Content-Type": "text/plain" |
| } |
| |
| url = f"{DEEPGRAM_TTS_URL}?model={voice_model}" |
| |
| try: |
| response = requests.post(url, headers=headers, data=text.encode("utf-8"), timeout=15) |
| |
| if response.status_code == 200 and len(response.content) > 0: |
| os.makedirs("audio_output", exist_ok=True) |
| filename = f"audio_output/call_resp_{uuid.uuid4().hex[:8]}.mp3" |
| with open(filename, "wb") as f: |
| f.write(response.content) |
| return filename |
| else: |
| print(f"[DeepgramTTS] API returned status {response.status_code}: {response.text}") |
| return None |
| |
| except Exception as e: |
| print(f"[DeepgramTTS] Exception calling Deepgram API: {e}") |
| return None |
|
|
