Voice activation detection based awakening device and method

Abstract

The invention relates to a field of electronic technology and specifically relates to an awakening device and method. The voice activation detection based awakening device includes a microphone used for sensing sound signals and converting the sound signals to electric signals; a first signal extracting unit connected to the output terminal of the microphone and used for extracting base frequency signals in the output signals of the microphone; a comparison unit connected to the first signal extracting unit and comparing the base frequency signals with a reference base frequency range indicating voice features and generating a first comparison result; and a controller connected to a comparison unit and producing an awakening signal under the effect of the output signals of the comparison unit. According to the invention, the device can identify the distance of a sounder besides recognizing whether the voice signals are consistent to features of human voice or not, so that interference on normal voice activation detection due to irrelevant voice signals can be avoided and voice awakening can be realized effectively.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a wake-up device and method. Background technique [0002] With the continuous integration and development of electronic devices, electronic devices with voice recognition technology are becoming more and more popular, which can control the electronic device to perform related functions through voice commands when the user is inconvenient to operate the electronic device. The function of waking up electronic devices has received widespread attention. In the existing voice recognition technology, the waking distance is not controllable, and misjudgments often occur for long-distance noisy human voices, such as for voices 2 meters or 5 meters away. The sound will also respond, which interferes with the normal use of the user; and turning on the voice wake-up system too frequently causes excessive power consumption of the system. Contents of the invention [0003] The object ...

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Problems solved by technology

[0002] With the continuous integration and development of electronic devices, electronic devices with voice recognition technology are becoming more and more popular, which can control the electronic device to perform related functions through voice commands when the user is inconvenient to operate the electronic device. The function of waking up electronic devices has received widespread attention. In the existing voice recognition technology, the waking distance is not controllable, and misjudgments often occur for long-distance noisy human voices, such as for voices 2 meters or 5 meters away. The sound will also respond, which interferes with the normal use of the user; and turning on the voice wake-up system too frequently causes excessive power consumption of the system

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