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Abstract / Description of output
This paper examines the effect of sensor performance on speaker diarisation in meetings and investigates the use of more advanced beamforming techniques, beyond the typically employed delay-sum beamformer, for mitigating the effects of poorer sensor performance. We present super-directive beamforming and investigate how different time difference of arrival (TDOA) smoothing and beamforming techniques influence the performance of state-of-the-art diarisation systems. We produced and transcribed a new corpus of meetings recorded in the instrumented meeting room using a high SNR analogue and a newly developed low SNR digital MEMS microphone array (DMMA.2). This research demonstrates that TDOA smoothing has a significant effect on the diarisation error rate and that simple noise reduction and beamforming schemes suffice to overcome audio signal degradation due to the lower SNR of modern MEMS microphones.
Original language | English |
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Title of host publication | Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on |
Pages | 4177-4180 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 2012 |
Event | ICASSP 2012 - Kyoto, Japan Duration: 26 Mar 2012 → 30 Mar 2012 |
Conference
Conference | ICASSP 2012 |
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Country/Territory | Japan |
City | Kyoto |
Period | 26/03/12 → 30/03/12 |
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Dive into the research topics of 'On the effect of SNR and superdirective beamforming in speaker diarisation in meetings'. Together they form a unique fingerprint.Projects
- 2 Finished
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RSE/SE Enterprise Fellowship 2010: MICAR - Multiparty interaction capture, analysis and replay
Lincoln, M.
1/04/10 → 31/03/11
Project: Research