Meeting Transcription Using Virtual Microphone Arrays
Table 3: Impact of number of microphones for system based on leave-one-out beamforming and CNC.
['No.\xa0of microphones', '1', '3', '5', '7']
There is a clear correlation between the number of microphones and the amount of improvement over the single channel system. Even with only three microphones, our system yielded relative gains of 11.1% and 14.8% in WER and SAWER, respectively.