Matsushita Electric Industrial Co., Ltd.

Shuji Morii

Katsuyuki Niyada

Satoru Fujii

Taisuke Watanabe

Shoji Hiraoka

Yasushi Takahashi

Koichi Emura

Ikuo Inoue

Terumasa Aoki

The present invention extracts information related to rendering from structured scenario descriptionthat describes information related to objects and the rendering, extracts a rendering setup corresponding to information related to the extracted rendering from rendering knowledge base, extracts a moving picture corresponding to the objects described in structured scenario descriptionfrom moving picture component databaseand produces rendering on the extracted moving picture using the extracted rendering setup, and can thereby create a moving picture subjected to effective rendering.

Apparatus and method for creating moving picture

Disclosed is a speech recognition apparatus comprising: a speech analysis portion for extracting parameters necessary for determination of spoken words; a speech period detecting portion for extracting one or more combinations of speech periods using the parameters; and a structure analysis portion for detecting feature points indicative of phoneme structure of each word and for determining a word through computation of similarity to proposed words in accordance with the presence and absence of the feature points. Therefore, erroneous recognition due to noise introduction or the like can be reduced by detecting one or more combinations of proposed speech periods by the speech period detecting portion. By extracting only necessary number of extracting points, which contribute to the distinguishment between words, with reference to analysis procedure provided for each word, the sharpness of determination is bettered. More stable operation than conventional apparatus has been achieved in connection with time base expansion/compression. Small numbers of parameters obtained through speech analysis are used to reduce the amount of computation, while the above-mentioned parameters are stable against difference in phenemes due to difference in speakers.

Apparatus for speech recognition

Apparatus for speech recognition, having each phoneme as a fundamental recognition unit, recognizes input speech by discriminating phonemes in the input speech. The apparatus comprises a memory for storing phoneme standard patterns of phonemes or phoneme groups; a spectrum analyzer for obtaining parameters indicative of the input speech signal spectrum; a statistical distance measure similarity calculator calculates the degree of similarity between the output of the spectrum analyzer and standard patterns stored in the memory; a segmentation portion for segmenting by using time-dependent low- and high-frequency power variations of the input speech signal and results from the similarity calculator; and a phoneme discriminator for recognizing phonemes by using the results from the similarity calculator.

In this speech synthesizer which announces the time, storage and complexity is minimized by switching selection of fixed data and variable data from corresponding memories, to compose the phrase 'the time is five o'clock'.

Sound synthesizing apparatus

An input signal is applied to a clamping circuit where the level of the input signal is clamped at a desired base line voltage in response to a clamping control signal. The clamping control signal is a pulse train signal, and pulses are applied to the clamping circuit only when the level of the output signal of the clamping circuit is within a given range. Therefore, when the level rising rate or speed is low, the level of the input signal is intermittently clamped so that the output signal level is maintained close to the base line voltage. When the level rising rate exceeds a given value, clamping is not performed so that the output level follows the input level. In order to see whether the level of the output signal is within the given range or not, a reference voltage which is higher than the base line voltage is used when shaping a two-level signal. If the input signal is of three-level, another reference voltage, which is lower than the base line voltage, is additionally used.

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Tokyo, Japan

Shuji Morii