Unverified50% confidenceFactExact time
STT、LLM、TTS三段串行叠加，仅处理延迟就超过650毫秒，不包括服务间网络跳转耗时
1
Sources
50%
Confidence
Long-term
Relevance
7/22/2026
First Seen
Sources
Related Claims
Unverified传统ASR→LLM→TTS三段式串联管线的延迟累积通常在800毫秒至2秒之间79% similarUnverified三明治架构相比原生Speech-to-Speech多了两次转换环节，STT环节通常增加100-300毫秒，TTS环节增加100-200毫秒78% similarUnverified业界领先的STT实时转录延迟约在200-400毫秒，采用Whisper或DeepSpeech等模型76% similarUnverified主流TTS方案如ElevenLabs、Azure Neural Voice和Google WaveNet的首字节延迟约为150-300毫秒75% similarUnverified云端 TTS 服务的首字节响应时间通常为 200-500 毫秒，是延迟瓶颈的主要来源74% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/587749API
curl https://kongchang.com/api/v1/knowledge/claims/587749MCP
get_claim(id=587749)