Sharp Kabushiki Kaisha Corporation

Mishima Paper Co., Ltd.

Naigai Ink. Mgf. Co., Ltd.

Osamu Fujii

Atsushi Ogawa

Akira Koike

Masahiko Takiguchi

Takamasa Shimizu

Kohichi Takaku

Koichi Hirata

Isamu Yoshino

Yasohachi Takahashi

Akiyoshi Ohya

Sound reproduction is controlled so as to be heard in the optimal state for the hearing function specific to elderly people. A frequency characteristic setting portion for setting the frequency characteristics of an inputted sound signal, and a sound volume setting portion for variable controlling the volume is disclosed. The frequency characteristic setting portion changes a frequency characteristic in which a sound band including a human voice band is emphasized to a frequency characteristic in which the characteristics of a gain in accordance with a frequency gradually becomes flat with an increase in the volume set by the sound volume setting portion. As a result, the frequency band of the human voice is strongly emphasized so as to help elderly people hear it at a low volume, and, as the volume grows higher, a frequency characteristic is changed to a flatter frequency characteristic, thereby making it possible to output easy-to-hear sound while reducing inconvenience caused by the emphasis of a specific frequency band.

Sound reproducing apparatus, sound reproducing method, and recording medium

A television receiver for content with which genre information is associated includes: a basic picture quality information receiving section which associates, with a single piece of genre information, a plurality of candidates for picture quality information regarding the content with which the genre information is associated, and which receives basic picture quality information indicating which one of the plurality of candidates is based on; a picture quality correction information creating section which receives picture quality correction information for further correcting the picture quality, and which creates, in accordance with the basic picture quality information and the picture quality correction information, information for correcting the picture quality; and a picture processing section which corrects the picture quality and which creates a picture to be displayed by a liquid crystal display device.

Display device, program and computer readable storage medium on which said program is stored

A transmitting/receiving method that can easily detect an influence exerted in transmission channels at a transmitter/receiver is provided. An acquiring unitacquires left audio data and right audio data of audio data received by a metadata calculator. An adding unitthen calculates added data based on an added value for a predetermined time of a sum of the acquired left audio data and right audio data. Similarly, a subtracting unitcalculates subtracted data based on an added value for predetermined time of a difference between the acquired right audio data and left audio data. An addition unitadds the added data and the subtracted data calculated by these adding unitand subtracting unitto the received audio data, and a transmission unittransmits the audio data to which the added data and the subtracted data are added.

Transmitting/receiving method, transmitter/receiver, and recording medium therefor

Provided is a signal processing method which can enhance the resolution of a spectrum round off by quantization and compensate energy of a spectrum truncated to zero by quantization so as to achieve reproduction without dissatisfaction or uncomfortable feeling. The selecting circuit selects a plurality of coefficients from coefficients of a frequency band of a dequantized acoustic signal. The computing circuit then computes an interpolation coefficient of a coefficient, which is not selected by the selecting circuit, by an interpolation method such as a Lagrange's interpolation method or a spline interpolation method which uses the plurality of coefficients selected by the selecting circuit.

Signal processing method, signal processing apparatus and recording medium

Encoding digital data in the present invention enables change of minimum limit of audibility characteristics and/or masking characteristics, which are usually set on the basis of the aural-psychological characteristics of persons with typical hearing, thus changing the allocation of quantized bits to each frequency band and allowing selection of a sound quality which accords with the listener's hearing. The present invention is suitable for ATRAC, a technique for compressed encoding for mini-discs.

Method of encoding digital data

The method of encoding digital data in the present invention enables change of minimum limit of audibility characteristics and/or masking characteristics, which are usually set on the basis of the aural-psychological characteristics of persons with typical hearing, thus changing the allocation of quantized bits to each frequency band and allowing selection of a sound quality which accords with the listener's hearing. The present invention is suitable for ATRAC, a method for compressed encoding for mini-discs.

Growing community of inventors

Osaka, Japan

Osamu Fujii