The 2005 AMI System for the Transcription of Speech in Meetings

Hain, Thomas and Burget, Lukas and Dines, John and Gaurau, Giulia and Karafiat, Martin and Lincoln, Mike and McCowan, Iain and Moore, Darren and Wan, Vincent and Ordelman, Roeland and Renals, Steve (2005) The 2005 AMI System for the Transcription of Speech in Meetings. In: Spring 2005 (RT05s) Rich Transcription Meeting Recognition Evaluation Plan.

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Abstract:	In this paper we describe the 2005 AMI system for the transcription of speech in meetings used for participation in the 2005 NIST RT evaluations. The system was designed for participation in the speech to text part of the evaluations, in particular for transcription of speech recorded with multiple distant microphones and independent headset microphones. System performance was tested on both conference room and lecture style meetings. Although input sources are processed using different front-ends, the recognition process is based on a unified system architecture. The system operates in multiple passes and makes use of state of the art technologies such as discriminative training, vocal tract length normalisation, heteroscedastic linear discriminant analysis, speaker adaptation with maximum likelihood linear regression and minimum word error rate decoding. In this paper we describe the system performance on the official development and test sets for the NIST RT05s evaluations. The system was jointly developed in less than 10 months by a multi-site team and was shown to achieve very competitive performance.
Item Type:	Conference or Workshop Item
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Human Media Interaction (HMI)
Link to this item:	http://purl.utwente.nl/publications/65564
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