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TMCNet: WASEDA U, OKI DEVELOP VOICE EXTRACTION TECHNOLOGY FOR REMOTES

[November 16, 2008]

WASEDA U, OKI DEVELOP VOICE EXTRACTION TECHNOLOGY FOR REMOTES

TOKYO, Nov 17, 2008 (AsiaPulse via COMTEX) --
A group from Waseda University
has worked with Oki Electric Industry Co. (TSE:6703) to develop
an audio device that can isolate and extract a single person's
voice from a mix of voices and noise.
The prototype is about the size of a typical appliance
remote, and the idea is to combine this technology with a
speech recognition system to design remotes that can control
appliances in response to spoken commands.
Four small microphones like those used for cell phones are
fitted to the front of the device. A proprietary algorithm for
voice frequency analysis detects talking that originates from
directly in front of the device and automatically separates


this out from other sounds being picked up by the microphones.
This selected set of sound waves is processed by the speech
recognition system and then converted to digital signals.
With this setup, a person could speak commands to a remote
to control such actions as dimming the lights or changing the
volume on the television.
The new technology could also be easily adopted to record a
lecture or the minutes at a meeting.
(Nikkei)

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