Nixon & Vanderhye, P.C.
Method and apparatus for processing speech signal
An apparatus for processing a speech signal is provided. The apparatus includes a communicator comprising communication circuitry configured to transmit and receive data, an actuator comprising actuation circuitry configured to generate vibration and to output a signal, a formant enhancement filter configured to increase a formant of the speech signal, and a controller comprising processing circuitry configured to control the speech signal to be received through the communicator, to estimate at least one formant frequency from the speech signal based on linear predictive coding (LPC), to estimate a bandwidth of the at least one formant frequency, to determine whether the speech signal is a voiced sound or a voiceless sound, to configure the formant enhancement filter based on the at least one formant frequency, the bandwidth of the at least one formant frequency, characteristics of the determined voiced sound or voiceless sound, and signal delivery characteristics of a human body, to apply the formant enhancement filter to the speech signal, and to control the speech signal to which the formant enhancement filter is applied to be output using the actuator through the human body.
SAMSUNG ELECTRONICS CO., LTD.
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Tae-hyun Joon-hyuk Seong-hyeon Hyeon-seong Byeong-yong Hyun-chul Tae-jun Kwang-sub Kang-eun
Yoon Chang Choe Kim Jeon Choi Park Song Lee