4Hz — 实时语音转写与声音鉴伪

4Hz 提供实时语音转写、目标说话人识别、说话人分离与 AI 合成语音鉴伪，帮助理解和分析通话与会议中的声音。

语音 AI 产品

实时语音转写：将语音实时转换为可编辑文字。
4Hz Focus：在多人对话中关注指定说话人的声音。
说话人分离：按说话人整理对话内容。
声音鉴伪：分析录音中的 AI 合成迹象，辅助核验声音来源。

在线体验 · 开发者文档

4Hz — Speech AI for the voices that matter

4Hz helps you understand spoken audio with real-time speech transcription, target-speaker focus, speaker diarization, and voice authenticity analysis.

Speech AI products

Live transcription turns speech into editable text as you speak.
4Hz Focus keeps the voice you care about in focus in multi-speaker conversations.
Speaker diarization separates a conversation by speaker.
Voice authenticity analysis helps review whether audio may be AI-generated.

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