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Communication Dans Un Congrès Année : 2006

Technical Improvements of the E-HMM Based Speaker Diarization System for Meeting Records

Résumé

This paper is concerned with the speaker diarization task in the specific context of the meeting room recordings. Firstly, different technical improvements of an E-HMM based system are proposed and evaluated in the framework of the NIST RT'06S evaluation campaign. Related experiments show an absolute gain of 6.4% overall speaker di-arization error rate (DER) and 12.9% on the development and evaluation corpora respectively. Secondly, this paper presents an original strategy to deal with the overlapping speech. Indeed, speech overlaps between speakers are largely involved in meetings due to the spontaneous nature of this kind of data and they are responsible for a decrease in performance of the speaker di-arization system, if they are not dealt with. Experiments still conducted in the framework of the NIST RT'06S evaluation show the ability of the strategy in detecting overlapping speech (decrease of the missed speaker error rate), even if an overall gain in speaker diarization performance has not been achieved yet.

Dates et versions

hal-01317165 , version 1 (18-05-2016)

Identifiants

Citer

Corinne Fredouille, Grégory Senay. Technical Improvements of the E-HMM Based Speaker Diarization System for Meeting Records. Third International Workshop, MLMI, May 2006, Bethesda, United States. ⟨10.1007/11965152_32⟩. ⟨hal-01317165⟩

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