Merge pull request #4092 from harshitajain165/harshita/smallest-tts-only
Add Smallest AI TTS service integration
This commit is contained in:
Mark Backman
28
README.md
28
README.md
@@ -85,20 +85,20 @@ Catch new features, interviews, and how-tos on our [Pipecat TV](https://www.yout
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## 🧩 Available services
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| Category | Services |
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| ------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| Speech-to-Text | [AssemblyAI](https://docs.pipecat.ai/server/services/stt/assemblyai), [AWS](https://docs.pipecat.ai/server/services/stt/aws), [Azure](https://docs.pipecat.ai/server/services/stt/azure), [Cartesia](https://docs.pipecat.ai/server/services/stt/cartesia), [Deepgram](https://docs.pipecat.ai/server/services/stt/deepgram), [ElevenLabs](https://docs.pipecat.ai/server/services/stt/elevenlabs), [Fal Wizper](https://docs.pipecat.ai/server/services/stt/fal), [Gladia](https://docs.pipecat.ai/server/services/stt/gladia), [Google](https://docs.pipecat.ai/server/services/stt/google), [Gradium](https://docs.pipecat.ai/server/services/stt/gradium), [Groq (Whisper)](https://docs.pipecat.ai/server/services/stt/groq), [NVIDIA Riva](https://docs.pipecat.ai/server/services/stt/riva), [OpenAI (Whisper)](https://docs.pipecat.ai/server/services/stt/openai), [SambaNova (Whisper)](https://docs.pipecat.ai/server/services/stt/sambanova), [Sarvam](https://docs.pipecat.ai/server/services/stt/sarvam), [Soniox](https://docs.pipecat.ai/server/services/stt/soniox), [Speechmatics](https://docs.pipecat.ai/server/services/stt/speechmatics), [Whisper](https://docs.pipecat.ai/server/services/stt/whisper) |
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| LLMs | [Anthropic](https://docs.pipecat.ai/server/services/llm/anthropic), [AWS](https://docs.pipecat.ai/server/services/llm/aws), [Azure](https://docs.pipecat.ai/server/services/llm/azure), [Cerebras](https://docs.pipecat.ai/server/services/llm/cerebras), [DeepSeek](https://docs.pipecat.ai/server/services/llm/deepseek), [Fireworks AI](https://docs.pipecat.ai/server/services/llm/fireworks), [Gemini](https://docs.pipecat.ai/server/services/llm/gemini), [Grok](https://docs.pipecat.ai/server/services/llm/grok), [Groq](https://docs.pipecat.ai/server/services/llm/groq), [Mistral](https://docs.pipecat.ai/server/services/llm/mistral), [Novita](https://docs.pipecat.ai/server/services/llm/novita), [NVIDIA NIM](https://docs.pipecat.ai/server/services/llm/nvidia), [Ollama](https://docs.pipecat.ai/server/services/llm/ollama), [OpenAI](https://docs.pipecat.ai/server/services/llm/openai), [OpenRouter](https://docs.pipecat.ai/server/services/llm/openrouter), [Perplexity](https://docs.pipecat.ai/server/services/llm/perplexity), [Qwen](https://docs.pipecat.ai/server/services/llm/qwen), [SambaNova](https://docs.pipecat.ai/server/services/llm/sambanova), [Sarvam](https://docs.pipecat.ai/server/services/llm/sarvam), [Together AI](https://docs.pipecat.ai/server/services/llm/together) |
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| Text-to-Speech | [Async](https://docs.pipecat.ai/server/services/tts/asyncai), [AWS](https://docs.pipecat.ai/server/services/tts/aws), [Azure](https://docs.pipecat.ai/server/services/tts/azure), [Camb AI](https://docs.pipecat.ai/server/services/tts/camb), [Cartesia](https://docs.pipecat.ai/server/services/tts/cartesia), [Deepgram](https://docs.pipecat.ai/server/services/tts/deepgram), [ElevenLabs](https://docs.pipecat.ai/server/services/tts/elevenlabs), [Fish](https://docs.pipecat.ai/server/services/tts/fish), [Google](https://docs.pipecat.ai/server/services/tts/google), [Gradium](https://docs.pipecat.ai/server/services/tts/gradium), [Groq](https://docs.pipecat.ai/server/services/tts/groq), [Hume](https://docs.pipecat.ai/server/services/tts/hume), [Inworld](https://docs.pipecat.ai/server/services/tts/inworld), [LMNT](https://docs.pipecat.ai/server/services/tts/lmnt), [MiniMax](https://docs.pipecat.ai/server/services/tts/minimax), [Neuphonic](https://docs.pipecat.ai/server/services/tts/neuphonic), [NVIDIA Riva](https://docs.pipecat.ai/server/services/tts/riva), [OpenAI](https://docs.pipecat.ai/server/services/tts/openai), [Piper](https://docs.pipecat.ai/server/services/tts/piper), [Resemble](https://docs.pipecat.ai/server/services/tts/resemble), [Rime](https://docs.pipecat.ai/server/services/tts/rime), [Sarvam](https://docs.pipecat.ai/server/services/tts/sarvam), [Speechmatics](https://docs.pipecat.ai/server/services/tts/speechmatics), [XTTS](https://docs.pipecat.ai/server/services/tts/xtts) |
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| Speech-to-Speech | [AWS Nova Sonic](https://docs.pipecat.ai/server/services/s2s/aws), [Gemini Multimodal Live](https://docs.pipecat.ai/server/services/s2s/gemini), [Grok Voice Agent](https://docs.pipecat.ai/server/services/s2s/grok), [OpenAI Realtime](https://docs.pipecat.ai/server/services/s2s/openai), [Ultravox](https://docs.pipecat.ai/server/services/s2s/ultravox), |
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| Transport | [Daily (WebRTC)](https://docs.pipecat.ai/server/services/transport/daily), [FastAPI Websocket](https://docs.pipecat.ai/server/services/transport/fastapi-websocket), [SmallWebRTCTransport](https://docs.pipecat.ai/server/services/transport/small-webrtc), [WebSocket Server](https://docs.pipecat.ai/server/services/transport/websocket-server), Local |
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| Serializers | [Exotel](https://docs.pipecat.ai/server/utilities/serializers/exotel), [Plivo](https://docs.pipecat.ai/server/utilities/serializers/plivo), [Twilio](https://docs.pipecat.ai/server/utilities/serializers/twilio), [Telnyx](https://docs.pipecat.ai/server/utilities/serializers/telnyx), [Vonage](https://docs.pipecat.ai/server/utilities/serializers/vonage) |
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| Video | [HeyGen](https://docs.pipecat.ai/server/services/video/heygen), [LemonSlice](https://docs.pipecat.ai/server/services/video/lemonslice), [Tavus](https://docs.pipecat.ai/server/services/video/tavus), [Simli](https://docs.pipecat.ai/server/services/video/simli) |
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| Memory | [mem0](https://docs.pipecat.ai/server/services/memory/mem0) |
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| Vision & Image | [fal](https://docs.pipecat.ai/server/services/image-generation/fal), [Google Imagen](https://docs.pipecat.ai/server/services/image-generation/google-imagen), [Moondream](https://docs.pipecat.ai/server/services/vision/moondream) |
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| Audio Processing | [Silero VAD](https://docs.pipecat.ai/server/utilities/audio/silero-vad-analyzer), [Krisp](https://docs.pipecat.ai/server/utilities/audio/krisp-filter), [Koala](https://docs.pipecat.ai/server/utilities/audio/koala-filter), [ai-coustics](https://docs.pipecat.ai/server/utilities/audio/aic-filter) |
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| Analytics & Metrics | [OpenTelemetry](https://docs.pipecat.ai/server/utilities/opentelemetry), [Sentry](https://docs.pipecat.ai/server/services/analytics/sentry) |
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| Community | [Browse community integrations →](https://docs.pipecat.ai/server/services/community-integrations) |
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| Category | Services |
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| ------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| Speech-to-Text | [AssemblyAI](https://docs.pipecat.ai/server/services/stt/assemblyai), [AWS](https://docs.pipecat.ai/server/services/stt/aws), [Azure](https://docs.pipecat.ai/server/services/stt/azure), [Cartesia](https://docs.pipecat.ai/server/services/stt/cartesia), [Deepgram](https://docs.pipecat.ai/server/services/stt/deepgram), [ElevenLabs](https://docs.pipecat.ai/server/services/stt/elevenlabs), [Fal Wizper](https://docs.pipecat.ai/server/services/stt/fal), [Gladia](https://docs.pipecat.ai/server/services/stt/gladia), [Google](https://docs.pipecat.ai/server/services/stt/google), [Gradium](https://docs.pipecat.ai/server/services/stt/gradium), [Groq (Whisper)](https://docs.pipecat.ai/server/services/stt/groq), [NVIDIA Riva](https://docs.pipecat.ai/server/services/stt/riva), [OpenAI (Whisper)](https://docs.pipecat.ai/server/services/stt/openai), [SambaNova (Whisper)](https://docs.pipecat.ai/server/services/stt/sambanova), [Sarvam](https://docs.pipecat.ai/server/services/stt/sarvam), [Soniox](https://docs.pipecat.ai/server/services/stt/soniox), [Speechmatics](https://docs.pipecat.ai/server/services/stt/speechmatics), [Whisper](https://docs.pipecat.ai/server/services/stt/whisper) |
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| LLMs | [Anthropic](https://docs.pipecat.ai/server/services/llm/anthropic), [AWS](https://docs.pipecat.ai/server/services/llm/aws), [Azure](https://docs.pipecat.ai/server/services/llm/azure), [Cerebras](https://docs.pipecat.ai/server/services/llm/cerebras), [DeepSeek](https://docs.pipecat.ai/server/services/llm/deepseek), [Fireworks AI](https://docs.pipecat.ai/server/services/llm/fireworks), [Gemini](https://docs.pipecat.ai/server/services/llm/gemini), [Grok](https://docs.pipecat.ai/server/services/llm/grok), [Groq](https://docs.pipecat.ai/server/services/llm/groq), [Mistral](https://docs.pipecat.ai/server/services/llm/mistral), [Novita](https://docs.pipecat.ai/server/services/llm/novita), [NVIDIA NIM](https://docs.pipecat.ai/server/services/llm/nvidia), [Ollama](https://docs.pipecat.ai/server/services/llm/ollama), [OpenAI](https://docs.pipecat.ai/server/services/llm/openai), [OpenRouter](https://docs.pipecat.ai/server/services/llm/openrouter), [Perplexity](https://docs.pipecat.ai/server/services/llm/perplexity), [Qwen](https://docs.pipecat.ai/server/services/llm/qwen), [SambaNova](https://docs.pipecat.ai/server/services/llm/sambanova), [Sarvam](https://docs.pipecat.ai/server/services/llm/sarvam), [Together AI](https://docs.pipecat.ai/server/services/llm/together) |
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| Text-to-Speech | [Async](https://docs.pipecat.ai/server/services/tts/asyncai), [AWS](https://docs.pipecat.ai/server/services/tts/aws), [Azure](https://docs.pipecat.ai/server/services/tts/azure), [Camb AI](https://docs.pipecat.ai/server/services/tts/camb), [Cartesia](https://docs.pipecat.ai/server/services/tts/cartesia), [Deepgram](https://docs.pipecat.ai/server/services/tts/deepgram), [ElevenLabs](https://docs.pipecat.ai/server/services/tts/elevenlabs), [Fish](https://docs.pipecat.ai/server/services/tts/fish), [Google](https://docs.pipecat.ai/server/services/tts/google), [Gradium](https://docs.pipecat.ai/server/services/tts/gradium), [Groq](https://docs.pipecat.ai/server/services/tts/groq), [Hume](https://docs.pipecat.ai/server/services/tts/hume), [Inworld](https://docs.pipecat.ai/server/services/tts/inworld), [LMNT](https://docs.pipecat.ai/server/services/tts/lmnt), [MiniMax](https://docs.pipecat.ai/server/services/tts/minimax), [Neuphonic](https://docs.pipecat.ai/server/services/tts/neuphonic), [NVIDIA Riva](https://docs.pipecat.ai/server/services/tts/riva), [OpenAI](https://docs.pipecat.ai/server/services/tts/openai), [Piper](https://docs.pipecat.ai/server/services/tts/piper), [Resemble](https://docs.pipecat.ai/server/services/tts/resemble), [Rime](https://docs.pipecat.ai/server/services/tts/rime), [Sarvam](https://docs.pipecat.ai/server/services/tts/sarvam), [Smallest](https://docs.pipecat.ai/server/services/tts/smallest), [Speechmatics](https://docs.pipecat.ai/server/services/tts/speechmatics), [XTTS](https://docs.pipecat.ai/server/services/tts/xtts) |
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| Speech-to-Speech | [AWS Nova Sonic](https://docs.pipecat.ai/server/services/s2s/aws), [Gemini Multimodal Live](https://docs.pipecat.ai/server/services/s2s/gemini), [Grok Voice Agent](https://docs.pipecat.ai/server/services/s2s/grok), [OpenAI Realtime](https://docs.pipecat.ai/server/services/s2s/openai), [Ultravox](https://docs.pipecat.ai/server/services/s2s/ultravox), |
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| Transport | [Daily (WebRTC)](https://docs.pipecat.ai/server/services/transport/daily), [FastAPI Websocket](https://docs.pipecat.ai/server/services/transport/fastapi-websocket), [SmallWebRTCTransport](https://docs.pipecat.ai/server/services/transport/small-webrtc), [WebSocket Server](https://docs.pipecat.ai/server/services/transport/websocket-server), Local |
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| Serializers | [Exotel](https://docs.pipecat.ai/server/utilities/serializers/exotel), [Plivo](https://docs.pipecat.ai/server/utilities/serializers/plivo), [Twilio](https://docs.pipecat.ai/server/utilities/serializers/twilio), [Telnyx](https://docs.pipecat.ai/server/utilities/serializers/telnyx), [Vonage](https://docs.pipecat.ai/server/utilities/serializers/vonage) |
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| Video | [HeyGen](https://docs.pipecat.ai/server/services/video/heygen), [LemonSlice](https://docs.pipecat.ai/server/services/video/lemonslice), [Tavus](https://docs.pipecat.ai/server/services/video/tavus), [Simli](https://docs.pipecat.ai/server/services/video/simli) |
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| Memory | [mem0](https://docs.pipecat.ai/server/services/memory/mem0) |
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| Vision & Image | [fal](https://docs.pipecat.ai/server/services/image-generation/fal), [Google Imagen](https://docs.pipecat.ai/server/services/image-generation/google-imagen), [Moondream](https://docs.pipecat.ai/server/services/vision/moondream) |
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| Audio Processing | [Silero VAD](https://docs.pipecat.ai/server/utilities/audio/silero-vad-analyzer), [Krisp](https://docs.pipecat.ai/server/utilities/audio/krisp-filter), [Koala](https://docs.pipecat.ai/server/utilities/audio/koala-filter), [ai-coustics](https://docs.pipecat.ai/server/utilities/audio/aic-filter) |
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| Analytics & Metrics | [OpenTelemetry](https://docs.pipecat.ai/server/utilities/opentelemetry), [Sentry](https://docs.pipecat.ai/server/services/analytics/sentry) |
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| Community | [Browse community integrations →](https://docs.pipecat.ai/server/services/community-integrations) |
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📚 [View full services documentation →](https://docs.pipecat.ai/server/services/supported-services)
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1
changelog/4092.added.md
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1
changelog/4092.added.md
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@@ -0,0 +1 @@
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- Added `SmallestTTSService`, a WebSocket-based TTS service integration with Smallest AI's Waves API. Supports the Lightning v2 and v3.1 models with configurable voice, language, speed, consistency, similarity, and enhancement settings.
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@@ -179,6 +179,9 @@ SENTRY_DSN=...
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SIMLI_API_KEY=...
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SIMLI_FACE_ID=...
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# Smallest
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SMALLEST_API_KEY=...
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# Smart turn
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LOCAL_SMART_TURN_MODEL_PATH=...
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FAL_SMART_TURN_API_KEY=...
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122
examples/foundational/07zl-interruptible-smallest.py
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122
examples/foundational/07zl-interruptible-smallest.py
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@@ -0,0 +1,122 @@
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#
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# Copyright (c) 2024-2026, Daily
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#
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# SPDX-License-Identifier: BSD 2-Clause License
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#
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import os
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from dotenv import load_dotenv
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from loguru import logger
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from pipecat.audio.vad.silero import SileroVADAnalyzer
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from pipecat.frames.frames import LLMRunFrame
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from pipecat.pipeline.pipeline import Pipeline
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from pipecat.pipeline.runner import PipelineRunner
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from pipecat.pipeline.task import PipelineParams, PipelineTask
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from pipecat.processors.aggregators.llm_context import LLMContext
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from pipecat.processors.aggregators.llm_response_universal import (
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LLMContextAggregatorPair,
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LLMUserAggregatorParams,
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)
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from pipecat.runner.types import RunnerArguments
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from pipecat.runner.utils import create_transport
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from pipecat.services.deepgram.stt import DeepgramSTTService
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from pipecat.services.openai.llm import OpenAILLMService
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from pipecat.services.smallest.tts import SmallestTTSService
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from pipecat.transports.base_transport import BaseTransport, TransportParams
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from pipecat.transports.daily.transport import DailyParams
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from pipecat.transports.websocket.fastapi import FastAPIWebsocketParams
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load_dotenv(override=True)
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transport_params = {
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"daily": lambda: DailyParams(
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audio_in_enabled=True,
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audio_out_enabled=True,
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),
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"twilio": lambda: FastAPIWebsocketParams(
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audio_in_enabled=True,
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audio_out_enabled=True,
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),
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"webrtc": lambda: TransportParams(
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audio_in_enabled=True,
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audio_out_enabled=True,
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),
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}
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async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
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logger.info(f"Starting bot")
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stt = DeepgramSTTService(
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api_key=os.getenv("DEEPGRAM_API_KEY"),
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)
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tts = SmallestTTSService(
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api_key=os.getenv("SMALLEST_API_KEY"),
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settings=SmallestTTSService.Settings(
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voice="sophia",
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),
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)
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llm = OpenAILLMService(
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api_key=os.getenv("OPENAI_API_KEY"),
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settings=OpenAILLMService.Settings(
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system_instruction="You are a helpful LLM in a WebRTC call. Your goal is to demonstrate your capabilities in a succinct way. Your output will be spoken aloud, so avoid special characters that can't easily be spoken, such as emojis or bullet points. Respond to what the user said in a creative and helpful way.",
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),
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)
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context = LLMContext()
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user_aggregator, assistant_aggregator = LLMContextAggregatorPair(
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context,
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user_params=LLMUserAggregatorParams(vad_analyzer=SileroVADAnalyzer()),
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)
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pipeline = Pipeline(
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[
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transport.input(),
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stt,
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user_aggregator,
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llm,
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tts,
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transport.output(),
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assistant_aggregator,
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]
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)
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task = PipelineTask(
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pipeline,
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params=PipelineParams(
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enable_metrics=True,
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enable_usage_metrics=True,
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),
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)
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@transport.event_handler("on_client_connected")
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async def on_client_connected(transport, client):
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logger.info(f"Client connected")
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context.add_message({"role": "user", "content": "Please introduce yourself to the user."})
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await task.queue_frames([LLMRunFrame()])
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@transport.event_handler("on_client_disconnected")
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async def on_client_disconnected(transport, client):
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logger.info(f"Client disconnected")
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await task.cancel()
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runner = PipelineRunner(handle_sigint=runner_args.handle_sigint)
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await runner.run(task)
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async def bot(runner_args: RunnerArguments):
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"""Main bot entry point compatible with Pipecat Cloud."""
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transport = await create_transport(runner_args, transport_params)
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await run_bot(transport, runner_args)
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if __name__ == "__main__":
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from pipecat.runner.run import main
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main()
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@@ -114,6 +114,7 @@ sarvam = [ "sarvamai==0.1.26", "pipecat-ai[websockets-base]" ]
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sentry = [ "sentry-sdk>=2.28.0,<3" ]
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silero = []
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simli = [ "simli-ai~=2.0.1"]
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smallest = [ "pipecat-ai[websockets-base]" ]
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soniox = [ "pipecat-ai[websockets-base]" ]
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soundfile = [ "soundfile~=0.13.1" ]
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speechmatics = [ "speechmatics-voice[smart]~=0.2.8" ]
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@@ -147,6 +147,7 @@ TESTS_07 = [
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("07zi-interruptible-piper.py", EVAL_SIMPLE_MATH),
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("07zj-interruptible-kokoro.py", EVAL_SIMPLE_MATH),
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("07zk-interruptible-resembleai.py", EVAL_SIMPLE_MATH),
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("07zl-interruptible-smallest.py", EVAL_SIMPLE_MATH),
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("07-interruptible-openai-responses.py", EVAL_SIMPLE_MATH),
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# Needs a local XTTS docker instance running.
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# ("07i-interruptible-xtts.py", EVAL_SIMPLE_MATH),
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1
src/pipecat/services/smallest/__init__.py
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1
src/pipecat/services/smallest/__init__.py
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@@ -0,0 +1 @@
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413
src/pipecat/services/smallest/tts.py
Normal file
413
src/pipecat/services/smallest/tts.py
Normal file
@@ -0,0 +1,413 @@
|
||||
#
|
||||
# Copyright (c) 2024-2026, Daily
|
||||
#
|
||||
# SPDX-License-Identifier: BSD 2-Clause License
|
||||
#
|
||||
|
||||
"""Smallest AI text-to-speech service implementation.
|
||||
|
||||
This module provides a WebSocket-based integration with Smallest AI's
|
||||
Waves API for real-time text-to-speech synthesis.
|
||||
"""
|
||||
|
||||
import asyncio
|
||||
import base64
|
||||
import json
|
||||
from dataclasses import dataclass, field
|
||||
from enum import Enum
|
||||
from typing import Any, AsyncGenerator, Optional
|
||||
|
||||
from loguru import logger
|
||||
|
||||
from pipecat.frames.frames import (
|
||||
CancelFrame,
|
||||
EndFrame,
|
||||
ErrorFrame,
|
||||
Frame,
|
||||
StartFrame,
|
||||
TTSAudioRawFrame,
|
||||
TTSStoppedFrame,
|
||||
)
|
||||
from pipecat.services.settings import NOT_GIVEN, TTSSettings, _NotGiven
|
||||
from pipecat.services.tts_service import InterruptibleTTSService
|
||||
from pipecat.transcriptions.language import Language, resolve_language
|
||||
from pipecat.utils.tracing.service_decorators import traced_tts
|
||||
|
||||
try:
|
||||
from websockets.asyncio.client import connect as websocket_connect
|
||||
from websockets.protocol import State
|
||||
except ModuleNotFoundError as e:
|
||||
logger.error(f"Exception: {e}")
|
||||
logger.error("In order to use Smallest, you need to `pip install pipecat-ai[smallest]`.")
|
||||
raise Exception(f"Missing module: {e}")
|
||||
|
||||
|
||||
class SmallestTTSModel(str, Enum):
|
||||
"""Available Smallest AI TTS models."""
|
||||
|
||||
LIGHTNING_V2 = "lightning-v2"
|
||||
LIGHTNING_V3_1 = "lightning-v3.1"
|
||||
|
||||
|
||||
def language_to_smallest_tts_language(language: Language) -> Optional[str]:
|
||||
"""Convert a Language enum to a Smallest TTS language string.
|
||||
|
||||
Args:
|
||||
language: The Language enum value to convert.
|
||||
|
||||
Returns:
|
||||
The Smallest language code string, or None if unsupported.
|
||||
"""
|
||||
LANGUAGE_MAP = {
|
||||
Language.AR: "ar",
|
||||
Language.BN: "bn",
|
||||
Language.DE: "de",
|
||||
Language.EN: "en",
|
||||
Language.ES: "es",
|
||||
Language.FR: "fr",
|
||||
Language.GU: "gu",
|
||||
Language.HE: "he",
|
||||
Language.HI: "hi",
|
||||
Language.IT: "it",
|
||||
Language.KN: "kn",
|
||||
Language.MR: "mr",
|
||||
Language.NL: "nl",
|
||||
Language.PL: "pl",
|
||||
Language.RU: "ru",
|
||||
Language.TA: "ta",
|
||||
}
|
||||
|
||||
return resolve_language(language, LANGUAGE_MAP, use_base_code=True)
|
||||
|
||||
|
||||
@dataclass
|
||||
class SmallestTTSSettings(TTSSettings):
|
||||
"""Settings for SmallestTTSService.
|
||||
|
||||
Parameters:
|
||||
speed: Speech speed multiplier.
|
||||
consistency: Consistency level for voice generation (0-1).
|
||||
similarity: Similarity level for voice generation (0-1).
|
||||
enhancement: Enhancement level for voice generation (0-2).
|
||||
"""
|
||||
|
||||
speed: float | None | _NotGiven = field(default_factory=lambda: NOT_GIVEN)
|
||||
consistency: float | None | _NotGiven = field(default_factory=lambda: NOT_GIVEN)
|
||||
similarity: float | None | _NotGiven = field(default_factory=lambda: NOT_GIVEN)
|
||||
enhancement: int | None | _NotGiven = field(default_factory=lambda: NOT_GIVEN)
|
||||
|
||||
|
||||
class SmallestTTSService(InterruptibleTTSService):
|
||||
"""Smallest AI real-time text-to-speech service using WebSocket streaming.
|
||||
|
||||
Provides real-time text-to-speech synthesis using Smallest AI's WebSocket API.
|
||||
Supports streaming audio generation with configurable voice parameters and
|
||||
language settings. Handles interruptions by reconnecting the WebSocket.
|
||||
|
||||
Example::
|
||||
|
||||
tts = SmallestTTSService(
|
||||
api_key="your-api-key",
|
||||
settings=SmallestTTSService.Settings(
|
||||
voice="sophia",
|
||||
language=Language.EN,
|
||||
speed=1.0,
|
||||
),
|
||||
)
|
||||
"""
|
||||
|
||||
Settings = SmallestTTSSettings
|
||||
_settings: Settings
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
*,
|
||||
api_key: str,
|
||||
base_url: str = "wss://waves-api.smallest.ai",
|
||||
sample_rate: Optional[int] = None,
|
||||
settings: Optional[Settings] = None,
|
||||
**kwargs,
|
||||
):
|
||||
"""Initialize the Smallest AI WebSocket TTS service.
|
||||
|
||||
Args:
|
||||
api_key: Smallest AI API key for authentication.
|
||||
base_url: Base WebSocket URL for the Smallest API.
|
||||
sample_rate: Audio sample rate in Hz. If None, uses default.
|
||||
settings: Runtime-updatable settings for the TTS service.
|
||||
**kwargs: Additional arguments passed to parent InterruptibleTTSService.
|
||||
"""
|
||||
default_settings = self.Settings(
|
||||
model=SmallestTTSModel.LIGHTNING_V3_1.value,
|
||||
voice="sophia",
|
||||
language=Language.EN,
|
||||
speed=None,
|
||||
consistency=None,
|
||||
similarity=None,
|
||||
enhancement=None,
|
||||
)
|
||||
|
||||
if settings is not None:
|
||||
default_settings.apply_update(settings)
|
||||
|
||||
super().__init__(
|
||||
push_stop_frames=True,
|
||||
push_start_frame=True,
|
||||
pause_frame_processing=True,
|
||||
sample_rate=sample_rate,
|
||||
settings=default_settings,
|
||||
**kwargs,
|
||||
)
|
||||
|
||||
self._api_key = api_key
|
||||
self._base_url = base_url.rstrip("/")
|
||||
self._receive_task = None
|
||||
self._keepalive_task = None
|
||||
|
||||
def can_generate_metrics(self) -> bool:
|
||||
"""Check if this service can generate processing metrics.
|
||||
|
||||
Returns:
|
||||
True, as Smallest service supports metrics generation.
|
||||
"""
|
||||
return True
|
||||
|
||||
def language_to_service_language(self, language: Language) -> Optional[str]:
|
||||
"""Convert a Language enum to Smallest service language format.
|
||||
|
||||
Args:
|
||||
language: The language to convert.
|
||||
|
||||
Returns:
|
||||
The Smallest-specific language code, or None if not supported.
|
||||
"""
|
||||
return language_to_smallest_tts_language(language)
|
||||
|
||||
def _build_msg(self, text: str) -> dict:
|
||||
"""Build a WebSocket message for the Smallest API.
|
||||
|
||||
Args:
|
||||
text: The text to synthesize.
|
||||
|
||||
Returns:
|
||||
Dictionary with the API message payload.
|
||||
"""
|
||||
msg = {
|
||||
"text": text,
|
||||
"voice_id": self._settings.voice,
|
||||
"language": self._settings.language,
|
||||
"sample_rate": self.sample_rate,
|
||||
}
|
||||
|
||||
if self._settings.speed is not None:
|
||||
msg["speed"] = self._settings.speed
|
||||
|
||||
# consistency, similarity, enhancement are only supported by lightning-v2
|
||||
if self._settings.model == SmallestTTSModel.LIGHTNING_V2.value:
|
||||
if self._settings.consistency is not None:
|
||||
msg["consistency"] = self._settings.consistency
|
||||
if self._settings.similarity is not None:
|
||||
msg["similarity"] = self._settings.similarity
|
||||
if self._settings.enhancement is not None:
|
||||
msg["enhancement"] = self._settings.enhancement
|
||||
|
||||
return msg
|
||||
|
||||
def _build_websocket_url(self) -> str:
|
||||
"""Build the WebSocket URL from base URL and model."""
|
||||
return f"{self._base_url}/api/v1/{self._settings.model}/get_speech/stream"
|
||||
|
||||
async def start(self, frame: StartFrame):
|
||||
"""Start the Smallest TTS service.
|
||||
|
||||
Args:
|
||||
frame: The start frame containing initialization parameters.
|
||||
"""
|
||||
await super().start(frame)
|
||||
await self._connect()
|
||||
|
||||
async def stop(self, frame: EndFrame):
|
||||
"""Stop the Smallest TTS service.
|
||||
|
||||
Args:
|
||||
frame: The end frame.
|
||||
"""
|
||||
await super().stop(frame)
|
||||
await self._disconnect()
|
||||
|
||||
async def cancel(self, frame: CancelFrame):
|
||||
"""Cancel the Smallest TTS service.
|
||||
|
||||
Args:
|
||||
frame: The cancel frame.
|
||||
"""
|
||||
await super().cancel(frame)
|
||||
await self._disconnect()
|
||||
|
||||
async def _update_settings(self, delta: TTSSettings) -> dict[str, Any]:
|
||||
"""Apply a settings delta, reconnecting if model changed.
|
||||
|
||||
Per-message fields (speed, consistency, similarity, enhancement, voice,
|
||||
language) apply automatically on the next ``_build_msg`` call. A model
|
||||
change requires reconnecting because the model is part of the WebSocket URL.
|
||||
"""
|
||||
changed = await super()._update_settings(delta)
|
||||
|
||||
if not changed:
|
||||
return changed
|
||||
|
||||
if "model" in changed:
|
||||
await self._disconnect()
|
||||
await self._connect()
|
||||
|
||||
return changed
|
||||
|
||||
async def _connect(self):
|
||||
"""Connect to Smallest WebSocket and start receive task."""
|
||||
await super()._connect()
|
||||
|
||||
await self._connect_websocket()
|
||||
|
||||
if self._websocket and not self._receive_task:
|
||||
self._receive_task = self.create_task(self._receive_task_handler(self._report_error))
|
||||
|
||||
if self._websocket and not self._keepalive_task:
|
||||
self._keepalive_task = self.create_task(self._keepalive_task_handler())
|
||||
|
||||
async def _disconnect(self):
|
||||
"""Disconnect from Smallest WebSocket and clean up tasks."""
|
||||
await super()._disconnect()
|
||||
|
||||
if self._receive_task:
|
||||
await self.cancel_task(self._receive_task)
|
||||
self._receive_task = None
|
||||
|
||||
if self._keepalive_task:
|
||||
await self.cancel_task(self._keepalive_task)
|
||||
self._keepalive_task = None
|
||||
|
||||
await self._disconnect_websocket()
|
||||
|
||||
async def _connect_websocket(self):
|
||||
"""Establish WebSocket connection to the Smallest API."""
|
||||
try:
|
||||
if self._websocket and self._websocket.state is State.OPEN:
|
||||
return
|
||||
|
||||
logger.debug("Connecting to Smallest TTS")
|
||||
|
||||
self._websocket = await websocket_connect(
|
||||
self._build_websocket_url(),
|
||||
additional_headers={"Authorization": f"Bearer {self._api_key}"},
|
||||
)
|
||||
|
||||
await self._call_event_handler("on_connected")
|
||||
except Exception as e:
|
||||
await self.push_error(error_msg=f"Smallest TTS connection error: {e}", exception=e)
|
||||
self._websocket = None
|
||||
await self._call_event_handler("on_connection_error", f"{e}")
|
||||
|
||||
async def _disconnect_websocket(self):
|
||||
"""Close the WebSocket connection and clean up state."""
|
||||
try:
|
||||
await self.stop_all_metrics()
|
||||
|
||||
if self._websocket:
|
||||
logger.debug("Disconnecting from Smallest TTS")
|
||||
await self._websocket.close()
|
||||
except Exception as e:
|
||||
await self.push_error(
|
||||
error_msg=f"Smallest TTS error closing websocket: {e}", exception=e
|
||||
)
|
||||
finally:
|
||||
self._websocket = None
|
||||
await self._call_event_handler("on_disconnected")
|
||||
|
||||
def _get_websocket(self):
|
||||
"""Get the WebSocket connection if available.
|
||||
|
||||
Returns:
|
||||
The active WebSocket connection.
|
||||
|
||||
Raises:
|
||||
Exception: If no WebSocket connection is available.
|
||||
"""
|
||||
if self._websocket:
|
||||
return self._websocket
|
||||
raise Exception("Websocket not connected")
|
||||
|
||||
async def _keepalive_task_handler(self):
|
||||
"""Send periodic keepalive messages to prevent idle timeout."""
|
||||
KEEPALIVE_INTERVAL = 30
|
||||
while True:
|
||||
await asyncio.sleep(KEEPALIVE_INTERVAL)
|
||||
await self._send_keepalive()
|
||||
|
||||
async def _send_keepalive(self):
|
||||
"""Send a flush message to keep the connection alive."""
|
||||
if self._websocket and self._websocket.state is State.OPEN:
|
||||
msg = {"flush": True}
|
||||
await self._websocket.send(json.dumps(msg))
|
||||
|
||||
async def flush_audio(self, context_id: Optional[str] = None):
|
||||
"""Flush any pending audio synthesis."""
|
||||
if not self._websocket or self._websocket.state is State.CLOSED:
|
||||
return
|
||||
await self._get_websocket().send(json.dumps({"flush": True}))
|
||||
|
||||
async def _receive_messages(self):
|
||||
"""Receive and process messages from the Smallest WebSocket API."""
|
||||
async for message in self._get_websocket():
|
||||
msg = json.loads(message)
|
||||
status = msg.get("status")
|
||||
|
||||
if status == "complete":
|
||||
await self.stop_all_metrics()
|
||||
elif status == "chunk":
|
||||
await self.stop_ttfb_metrics()
|
||||
context_id = self.get_active_audio_context_id()
|
||||
frame = TTSAudioRawFrame(
|
||||
audio=base64.b64decode(msg["data"]["audio"]),
|
||||
sample_rate=self.sample_rate,
|
||||
num_channels=1,
|
||||
context_id=context_id,
|
||||
)
|
||||
await self.append_to_audio_context(context_id, frame)
|
||||
elif status == "error":
|
||||
context_id = self.get_active_audio_context_id()
|
||||
await self.push_frame(TTSStoppedFrame(context_id=context_id))
|
||||
await self.stop_all_metrics()
|
||||
await self.push_error(error_msg=f"Smallest TTS error: {msg.get('error', msg)}")
|
||||
else:
|
||||
logger.warning(f"{self} unknown message status: {msg}")
|
||||
|
||||
@traced_tts
|
||||
async def run_tts(self, text: str, context_id: str) -> AsyncGenerator[Frame, None]:
|
||||
"""Generate speech from text using Smallest's WebSocket streaming API.
|
||||
|
||||
Args:
|
||||
text: The text to synthesize into speech.
|
||||
context_id: Unique identifier for this TTS context.
|
||||
|
||||
Yields:
|
||||
Frame: Audio arrives via WebSocket receive task.
|
||||
"""
|
||||
logger.debug(f"{self}: Generating TTS [{text}]")
|
||||
|
||||
try:
|
||||
if not self._websocket or self._websocket.state is State.CLOSED:
|
||||
await self._connect()
|
||||
|
||||
try:
|
||||
msg = self._build_msg(text=text)
|
||||
await self._get_websocket().send(json.dumps(msg))
|
||||
await self.start_tts_usage_metrics(text)
|
||||
except Exception as e:
|
||||
yield ErrorFrame(error=f"Smallest TTS send error: {e}")
|
||||
yield TTSStoppedFrame(context_id=context_id)
|
||||
await self._disconnect()
|
||||
await self._connect()
|
||||
return
|
||||
yield None
|
||||
except Exception as e:
|
||||
yield ErrorFrame(error=f"Smallest TTS error: {e}")
|
||||
6
uv.lock
generated
6
uv.lock
generated
@@ -4789,6 +4789,9 @@ sentry = [
|
||||
simli = [
|
||||
{ name = "simli-ai" },
|
||||
]
|
||||
smallest = [
|
||||
{ name = "websockets" },
|
||||
]
|
||||
soniox = [
|
||||
{ name = "websockets" },
|
||||
]
|
||||
@@ -4925,6 +4928,7 @@ requires-dist = [
|
||||
{ name = "pipecat-ai", extras = ["websockets-base"], marker = "extra == 'resembleai'" },
|
||||
{ name = "pipecat-ai", extras = ["websockets-base"], marker = "extra == 'rime'" },
|
||||
{ name = "pipecat-ai", extras = ["websockets-base"], marker = "extra == 'sarvam'" },
|
||||
{ name = "pipecat-ai", extras = ["websockets-base"], marker = "extra == 'smallest'" },
|
||||
{ name = "pipecat-ai", extras = ["websockets-base"], marker = "extra == 'soniox'" },
|
||||
{ name = "pipecat-ai", extras = ["websockets-base"], marker = "extra == 'ultravox'" },
|
||||
{ name = "pipecat-ai", extras = ["websockets-base"], marker = "extra == 'websocket'" },
|
||||
@@ -4962,7 +4966,7 @@ requires-dist = [
|
||||
{ name = "wait-for2", marker = "python_full_version < '3.12'", specifier = ">=0.4.1,<1" },
|
||||
{ name = "websockets", marker = "extra == 'websockets-base'", specifier = ">=13.1,<16.0" },
|
||||
]
|
||||
provides-extras = ["aic", "anthropic", "assemblyai", "asyncai", "aws", "aws-nova-sonic", "azure", "cartesia", "camb", "cerebras", "daily", "deepgram", "deepseek", "elevenlabs", "fal", "fireworks", "fish", "gladia", "google", "gradium", "grok", "groq", "gstreamer", "heygen", "hume", "inworld", "koala", "kokoro", "krisp", "langchain", "lemonslice", "livekit", "lmnt", "local", "local-smart-turn", "mcp", "mem0", "mistral", "mlx-whisper", "moondream", "neuphonic", "noisereduce", "nvidia", "novita", "openai", "rnnoise", "openpipe", "openrouter", "perplexity", "piper", "qwen", "remote-smart-turn", "resembleai", "rime", "riva", "runner", "sagemaker", "sambanova", "sarvam", "sentry", "silero", "simli", "soniox", "soundfile", "speechmatics", "strands", "tavus", "together", "tracing", "ultravox", "webrtc", "websocket", "websockets-base", "whisper"]
|
||||
provides-extras = ["aic", "anthropic", "assemblyai", "asyncai", "aws", "aws-nova-sonic", "azure", "cartesia", "camb", "cerebras", "daily", "deepgram", "deepseek", "elevenlabs", "fal", "fireworks", "fish", "gladia", "google", "gradium", "grok", "groq", "gstreamer", "heygen", "hume", "inworld", "koala", "kokoro", "krisp", "langchain", "lemonslice", "livekit", "lmnt", "local", "local-smart-turn", "mcp", "mem0", "mistral", "mlx-whisper", "moondream", "neuphonic", "noisereduce", "novita", "nvidia", "openai", "rnnoise", "openpipe", "openrouter", "perplexity", "piper", "qwen", "remote-smart-turn", "resembleai", "rime", "riva", "runner", "sagemaker", "sambanova", "sarvam", "smallest", "sentry", "silero", "simli", "soniox", "soundfile", "speechmatics", "strands", "tavus", "together", "tracing", "ultravox", "webrtc", "websocket", "websockets-base", "whisper"]
|
||||
|
||||
[package.metadata.requires-dev]
|
||||
dev = [
|
||||
|
||||
Reference in New Issue
Block a user