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Unverified50% confidenceFactExact time

早期语音AI系统受限于端点检测（VAD）技术，本质上是半双工架构

1

Sources

50%

Confidence

Long-term

Relevance

7/15/2026

First Seen

Sources

ChatGPT全双工语音模型GPT Live发布：对话体验全面革新

Related Claims

Unverified早期语音AI系统如微软Cortana、亚马逊Alexa依赖VAD（端点检测）作为半双工架构，在嘈杂环境中脆弱79% similar Unverified早期AI语音系统普遍采用半双工设计，主要因为回声消除的工程复杂度较高79% similar Unverified早期语音助手如 Siri、Alexa 采用 VAD（语音活动检测）判断用户是否停止说话，这种机制天然是半双工的79% similar Unverified全双工语音交互需要回声消除（Echo Cancellation）和端点检测（VAD）两项关键底层能力支撑74% similar Verified早期语音助手如Siri、Alexa采用「说话-停顿-响应」的流水线架构，本质上是半双工的74% similar

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