Unverified70% confidenceFactExact time
Early voice assistants such as Siri and Google Assistant generally adopted a cascaded pipeline architecture, connecting four independent modules—ASR, NLU, LLM, and TTS—in series.
2
Sources
70%
Confidence
Long-term
Relevance
7/20/2026
First Seen
Sources
Related Claims
VerifiedTraditional voice dialogue systems consist of three independent modules connected in series—ASR (Automatic Speech Recognition), LLM (Large Language Model), and TTS (Text-to-Speech)—each trained separately and executed sequentially.76% similarUnverifiedOpen-source voice assistant projects typically rely on a combination of key technical components such as VAD, ASR, LLM, and TTS.76% similarUnverifiedTraditional voice assistants use a request-response pipeline that serially executes ASR, NLU, generation, and TTS, causing latency to compound at each stage.74% similarUnverified传统语音助手如Amazon Alexa和Google Assistant的本地设备通常只负责唤醒词检测和音频采集，ASR、NLU和TTS都在远端服务器完成74% similarUnverifiedThe real-time voice pipeline of a telephone customer service system consists of three components: ASR (Automatic Speech Recognition), LLM, and TTS (Text-to-Speech)74% similar
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