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Dear all,
We are currentcly considering creating a speech database for speech
recognition in meeting room environment. What we have at hand is a high-quality
database collected by close-talk microphone. What we going to do is to playback
the existing speech files via a speaker (or speakers in different locations )
and re-collected by a far-talk microphone (or microphone array). Are there
any suggestions for speaker and microphone products for this project? We hope
that the ouput of the speaker could be as close as possible to
the natural speech, which means that we may need
to equalize the frequency response of the close-talk microphone and the speaker.
To your experience, is it possible to achieve this goal by equalization or any
ohter signal processing techniques?
Best regards,
Nengheng Zheng
Digital Signal Processing & Speech Technology Laboratory
Department of Electronic Engineering The Chinese University of Hong Kong Shatin, NT, Hong Kong SAR of China Tel: +852-2609-8271 Fax: +852-2603-6868 Emali: nhzheng@xxxxxxxxxxxxxx |