Fujitsu Corporation

Ryosuke Hamasaki

Yasuji Ota

Shinta Kimura

Kyung-Ho Loken-Kim

A quality level analysis unitspecifies a coding method, communication line conditions, and a quality level, such as an S/N ratio and the like, of voices of an input channel, received by a corresponding receiving unit. A channel allocation/mixing unitcontrols the allocation or mixing of voices of respective input channels to or into respective output channels(output units) on the basis of the results of analysis by the quality level analysis unit. Consequently, loud speakers from which poor quality voices and good quality voices are output can be separated from one another, thus improving the total intelligibility of received voices.

Inter-multipoint voice conversation apparatus

A number-of-recognition candidates determining system in a speech recognition device comprises an SN ratio calculator for calculating an SN ratio of an inputted speech to the environmental noise, and a number-of-recognition candidates controller for controlling the number of the recognition candidates according to the value of the SN ratio calculated by the SN ratio calculator. The number of recognition candidates varies according to the value of the SN ratio.

Number-of recognition candidates determining system in speech

A speech recognition method and apparatus enable the use of the same recognition software for speaker dependent recognition under various running environments such as different computers. The speech recognition method operates in the form of computer software to detect at least one running environment of hardware. The hardware running environment may include processing speed of a computer. Recognition parameters are then determined which correspond to the detected running environment. Next, the speech recognition method converts an input analog speech signal into a digital speech signal. The digital speech signal, in the form of extracted feature data, is then compared with digital feature data in a dictionary. The speech is then recognized in response to a match of the data.

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Kawasaki, Japan

Ryosuke Hamasaki