{"id":1191144,"date":"2026-10-26T16:27:20","date_gmt":"2026-10-26T23:27:20","guid":{"rendered":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/publication\/fastdiar-frame-level-speaker-encoder-for-streaming-diarization\/"},"modified":"2026-10-30T11:13:59","modified_gmt":"2026-10-30T18:13:59","slug":"fastdiar-frame-level-speaker-encoder-for-streaming-diarization","status":"publish","type":"msr-research-item","link":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/publication\/fastdiar-frame-level-speaker-encoder-for-streaming-diarization\/","title":{"rendered":"FASTDIAR: Frame-level speaker encoder for Streaming Diarization"},"content":{"rendered":"\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Real-time conversational agents require speaker diarization that streams and runs on a CPU. Most systems apply an utterance-level speaker encoder to short, heavily overlapping chunks, which wastes computation and leaves the model optimized for the wrong task. We instead turn a state-of-the-art speaker recognition architecture into a causal frame-level encoder that reads the stream once and emits one embedding every 80~ms from a bounded two-second window of past audio, and pair it with online clustering that gates every update on the self-similarity of the stream. Trained only by distillation from an utterance-level teacher on simulated and out-of-domain mixtures, and evaluated with one fixed set of hyperparameters, the system is the most accurate streaming diarizer on low-overlap benchmarks at sub-second latency, degrades far less than cache-based systems as the number of speakers grows, and runs five times faster than real time on a single CPU thread.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Real-time conversational agents require speaker diarization that streams and runs on a CPU. Most systems apply an utterance-level speaker encoder to short, heavily overlapping chunks, which wastes computation and leaves the model optimized for the wrong task. We instead turn a state-of-the-art speaker recognition architecture into a causal frame-level encoder that reads the stream once [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":[{"type":"text","value":"Nikita Torgashov","user_id":0},{"type":"text","value":"Okan 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