feat(tts): add Doubao Speech provider

Add Volcengine Doubao Speech 2.0 as a TTS provider for Mandarin narration with async timestamp metadata, provider documentation, and setup guidance.
2026-05-04 21:40:17 +08:00
parent fdd6457fed
commit 3ee8548226
4 changed files with 567 additions and 0 deletions
@@ -13,6 +13,8 @@ GOOGLE_API_KEY=              # Google Imagen images, Google Cloud TTS (700+ voic
 ELEVENLABS_API_KEY=          # TTS narration, music generation, sound effects
 OPENAI_API_KEY=              # OpenAI TTS fallback and DALL-E image generation
 XAI_API_KEY=                 # Grok image generation/editing and Grok video generation
+DOUBAO_SPEECH_API_KEY=       # Volcengine Doubao Speech TTS (new console API Key)
+DOUBAO_SPEECH_VOICE_TYPE=    # Default Doubao speaker/voice type, e.g. zh_female_vv_uranus_bigtts
 # Piper local voices do not require env vars; install `piper-tts` via pip

 # --- Music ---