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*** For immediate use May 7, 2013
Tokyo, May 7, 2013 - NEC Corporation (NEC; TSE: 6701) has developed speech recognition technologies that enable household electronics to be controlled by voice commands through a combination of the company's noise cancellation and speech enhancement technologies.
In recent years, technologies have enabled information devices, such as electrical appliances, tablets, and smartphones, to be controlled by voice. However, these devices require built-in microphones that must be spoken to at close range. If users in a noisy environment are slightly removed from a speech recognition capable device, whether watching television, preparing a meal, or riding in a vehicle, the device tends to respond to background noise, rather than a user's command, which often results in mistaken operations.
NEC's latest technologies enable devices to be reliably operated by voice through an interface and microphones that accurately recognize a person's voice. This accuracy is maintained even when users are distant from a device in a noisy environment, where existing technologies have difficulty operating effectively. As a result, users who are in noisy locations, such as a busy living room or kitchen, can still operate electrical appliances and specialized devices by voice when separated by roughly one meter (approximately 3 feet).
"These innovative technologies can enable car navigation systems to overcome background noise and accurately detect voice commands from the driver of a moving car," said Akio Yamada, General Manager, Information and Media Processing Laboratories, NEC. "Employees of warehouses, manufacturing plants and retail stores can also benefit from the convenient data input of these new technologies as their hands remain free to focus on other tasks."
Primary features of these technologies include:
(*) Based on standards established by the ETSI Advanced Front-End (AFE) for advanced speech processing using a server-client framework (distributed speech recognition; DSR) that sends recognized data back to a terminal once a server can provide recognition results for voice data received from a mobile terminal.