Oki Electric Industry Co., Ltd.

Waseda University

Feat Limited

Takashi Yazu

Makoto Morito

Kenzo Akagiri

Akihiko Arimitsu

Kazuhiro Katagiri

Kei Yamada

Tetsunori Kobayashi

Tetsuji Ogawa

There are provided a target area sound extraction unit that, based on input signals input from plural microphone arrays, acquires beam former outputs from each of the microphone arrays, and uses the acquired beam former outputs to perform target area sound extraction processing to extract a target area sound taking a target area as a sound source, so as to thereby acquire an area sound acquisition output, and a restoration device that restores components of the target area sound in a frequency bandwidth having a predetermined range that was suppressed in the target area sound extraction processing.

Sound acquisition device, computer-readable storage medium and sound acquisition method

The sound pick-up apparatus has a first area sound pick-up unit configured to acquire, on a basis of an input signal from a microphone array unit capable of forming microphone arrays with three or more different directionalities, area sound pick-up outputs based on two or more patterns of combinations of the microphone arrays, and a second area sound pick-up unit configured to output, as an area sound pick-up result, a result obtained by integrating the area sound pick-up outputs of the respective patterns which are acquired by the first area sound pick-up unit.

Sound pick-up apparatus, medium, and method

In a source sound separator, first and second target sound predominant spectra are generated respectively by first and second processing operations for linear combination for emphasizing the target sound, using received sound signals of two microphones arrayed at a distance from each other. A target sound suppressed spectrum is generated by processing for linear combination for suppression of the target sound, using the two received sound signals. Further, a phase signal containing a larger amount of signal components of the target sound and exhibiting directivity in the direction of the target sound is generated by processing of linear combination, using the two received sound signals. The target sound and the interfering sound are separated from each other using the first and second target sound predominant spectra, the target sound suppressed spectrum, and the phase signal.

Source sound separator with spectrum analysis through linear combination and method therefor

A voice synthesis apparatus for analyzing characters including a symbol character and for outputting the characters by voice synthesis, includes a first detection module that detects a paragraph section having a repetition of a plurality of kinds of a symbol based on a character column in one line; and a voice synthesis module for performing voice synthesis for a rest of character column and deleting the symbol character column interval from the character line.

Voice synthesis apparatus

In a method and apparatus for the analysis and synthesis of voice signals wherein frequency bands of voice signals are divided into several sub-bands with subsequent separate coding and synthesis of each subdivision channel signals, the amplitude level of each subdivision channel signal in a predetermined interval of time (frame length) is evaluated and only those subdivision channel signals for which the above-mentioned amplitude level exceeds a predetermined reference level established for each subdivision channel is coded.

Voice analysis and synthesis dependent upon a silence decision

In a sub-band speech analyzing and synthesizing apparatus, a low-pass filter comprises a nonrecursive filter. The center frequency and bandwidth of each channel are selected so that the decimated sampling period of that channel is an integer multiple of the period of the modulating signal or the demodulating signal of the channel. Modulation or demodulation is performed simultaneously with the low-pass filtering by the nonrecursive filter.

Growing community of inventors

Tokyo, Japan

Takashi Yazu