Abstract: To prevent the measurement of the position of a speaker from not being performed in a case where the position of the speaker is changed, and prevent the measurement of the position of the speaker from being performed more than necessary. An AV amplifier (1) according to an aspect of the present invention includes: a control unit (105) that detects a change in the installation position of at least one speaker (2) that supplies an audio signal; and a measurement unit (106) that measures the installation position of at least the speaker (2) of which the installation position is changed among the plurality of speakers (2), automatically or according to a user operation, after the change is detected by the control unit (195).

Abstract: An audio signal playback device includes a conversion unit that performs discrete Fourier transform on each of 2 channel audio signals obtained from a multi-channel input audio signal, a correlation signal extraction unit that, disregarding a direct current component, extracts a correlation signal from the 2 channel audio signals that result from the discrete Fourier transform, and additionally pulls a correlation signal in a lower frequency than a predetermined frequency flow out of the correlation signal, and an output unit that allocates the pulled-out correlation signal to a virtual sound source in such a manner that a time difference in a sound output between adjacent speakers falls within a range of 2?x/c (where, ?x is a distance between the adjacent speakers, and c is the speed of sound), and outputs a result of the allocation from one portion or all portions of the speaker group.

Abstract: To prevent the measurement of the position of a speaker from not being performed in a case where the position of the speaker is changed, and prevent the measurement of the position of the speaker from being performed more than necessary. An AV amplifier (1) according to an aspect of the present invention includes: a control unit (105) that detects a change in the installation position of at least one speaker (2) that supplies an audio signal; and a measurement unit (106) that measures the installation position of at least the speaker (2) of which the installation position is changed among the plurality of speakers (2), automatically or according to a user operation, after the change is detected by the control unit (195).

Abstract: An earphone system is provided which enables a listener to listen to a localized stereophonic sound image by earphones while naturally listening to ambient sound. An earphone system (10) includes earphones (1) that are worn on ears and a signal output unit (13) that outputs a sound signal to the earphones (1). The earphone (1) includes a housing in a tubular shape whose internal space has openings at both ends or in a shape in which a portion of the tubular shape in a circumference direction is removed, a speaker unit that outputs a sound signal toward one of the openings, and a support portion that supports the speaker unit in a position which corresponds to the internal space of the tubular shape. Further, the signal output unit (11) includes a signal processing unit (13) that performs signal processing for an input sound signal to generate and output a sound signal of stereophonic sound in which a sound image is localized in a position that is assumed as an outside of a head.

Abstract: Positive and negative two terminals of each of a plurality of main speakers constituting an array speaker are connected to each of amplifiers. Then, the main speakers are bridge-driven. Sub-speakers interpolating the main speakers are arranged respectively between the main speakers. Then, the positive and negative terminals of each of the sub-speakers are connected respectively to the terminals of the same polarities of the adjacent two of the main speakers. One sub-speaker receives an average value of the signals provided to the adjacent two main speakers, so that the one sub-speaker interpolates the wavefronts emitted from the adjacent two main speakers.

Abstract: Even in a case where an audio signal is played back with a low cost-restricted speaker group using a wavefront synthesis playback type, it is possible to faithfully recreate a sound image from any listening position, and to prevent sound in a low frequency band from falling short of sound pressure.

Abstract: An audio signal processing device capable of separating audio signal components which enhance the sence of presense from two channels of audio signals and increasing or decreasing pressure for the components is provided. The audio signal processing device (illustrated as an audio signal processing portion 20) is provided with a signal extraction portion (illustrated as a signal separation and extraction portion 23) for extracting, from input audio signals of two channels, uncorrelated signals derived from the signals; an uncorrelated signal increase/decrease portion (illustrated as gain adjustment portions 25a and 25b) for increasing or decreasing signals extracted at the signal extraction portion; and an audio signal summing portion for summing the signals that have been increased or decreased at the uncorrelated signal increase/decrease portion and the input audio signal.

Abstract: A line array speaker in which interference between back pressures of adjacent speakers is reduced is provided. The line array speaker includes three or more cone-shaped speaker units including diaphragms vibrated by magnetic circuit portions. The speaker units are attached to a rectangular baffle plate 2 such that the speaker units are arranged side by side along a single line in the longitudinal direction of the baffle plate 2. The diaphragms are supported by respective frames 10 which are formed by aluminum die casting and which have openings 10a, 10a in upper and lower regions. Each frame 10 has no opening 10a in at least one region in an arrangement direction of the speaker units. Alternatively, the frame 10 of each speaker unit is configured so that the area of openings 10a, 10a in the regions in the arrangement direction is smaller than the area of openings 10a, 10a in other regions.

Abstract: In an image coding apparatus that codes, on a block-by-block basis, a distance image including depth values each representing a pixel-by-pixel distance from a viewpoint to a subject, a segmentation unit divides a block of a texture image including luminance values of individual pixels of the subject into segments including the pixels on the basis of the luminance values, and an intra-plane prediction unit sets a depth value of each of the divided segments included in one block of the distance image on the basis of depth values of pixels included in an already-coded block adjacent to the block, and generates, on a block-by-block basis, a predicted image including the set depth values of the individual segments.

Abstract: A multimedia processing device implements a script having a data structure that is formed of a drawing information describing portion where media data is chronologically described, and a user navigation information describing portion where correspondence between events and actions and implementation conditions are chronologically described. The multimedia processing device implements this script, and thereby, media data is chronologically reproduced, and at the same time, a user interface showing operations that can be chronologically carried out is outputted. Then, a predetermined process, such as an insertion of media data, can be implemented by carrying out the operations following the user interface according to predetermined timing.

Abstract: A multimedia processing device implements a script having a data structure that is formed of a drawing information describing portion where media data is chronologically described, and a user navigation information describing portion where correspondence between events and actions and implementation conditions are chronologically described. The multimedia processing device implements this script, and thereby, media data is chronologically reproduced, and at the same time, a user interface showing operations that can be chronologically carried out is outputted. Then, a predetermined process, such as an insertion of media data, can be implemented by carrying out the operations following the user interface according to predetermined timing.

Abstract: Provided is a video presentation apparatus enabling the user to easily ascertain the associative relationship between video and audio. A video presentation apparatus according to the present invention sets a virtual sound source at the position where a video is being displayed, and forms a sound field that imitates the state of audio being produced from the virtual sound source (see FIG. 3).

Abstract: An audio signal processing device capable of separating audio signal components which enhance the sence of presense from two channels of audio signals and increasing or decreasing pressure for the components is provided. The audio signal processing device (illustrated as an audio signal processing portion 20) is provided with a signal extraction portion (illustrated as a signal separation and extraction portion 23) for extracting, from input audio signals of two channels, uncorrelated signals derived from the signals; an uncorrelated signal increase/decrease portion (illustrated as gain adjustment portions 25a and 25b) for increasing or decreasing signals extracted at the signal extraction portion; and an audio signal summing portion for summing the signals that have been increased or decreased at the uncorrelated signal increase/decrease portion and the input audio signal.

Abstract: Positive and negative two terminals of each of a plurality of main speakers constituting an array speaker are connected to each of amplifiers. Then, the main speakers are bridge-driven. Sub-speakers interpolating the main speakers are arranged respectively between the main speakers. Then, the positive and negative terminals of each of the sub-speakers are connected respectively to the terminals of the same polarities of the adjacent two of the main speakers. One sub-speaker receives an average value of the signals provided to the adjacent two main speakers, so that the one sub-speaker interpolates the wavefronts emitted from the adjacent two main speakers.

Abstract: An audio data processing apparatus and the like are provided in which waveform distortion generated when a virtual sound source moves relative to a speaker is processed by linear interpolation so that the speed of correction processing is achieved. This apparatus has: calculating means calculating first and second distances measured at two time points from the position of the speaker to the position of the virtual sound source; identifying means, when the first and the second distances are different from each other, identifying a distorted part in the audio data at the two time points; and correcting means correcting the audio data of the identified part by interpolation using a function.

Abstract: An audio data processing apparatus and the like are provided in which waveform distortion generated when a virtual sound source moves is resolved so that noise caused by waveform distortion is reduced remarkably. The present invention includes: a step of calculating distances measured at different time points between the position of the virtual sound source and a speaker; a step of, when these distances are different from each other, judging whether the virtual sound source is departing or approaching relative to the speaker; and a step of identifying and correcting the part of waveform distortion depending on departing or approaching.

Abstract: A computer-readable recording medium recording multimedia contents data and a data structure that represents a chronological sequence of operations that are processed in a data processing device. The computer-readable recording medium includes a schedule portion including a predetermined reproduction time when the media data is to be reproduced in the reproducing unit and a predetermined input time when the input operation is to be received by the input unit. The data processing device performs steps of processing the multimedia contents data so that the predetermined media data is reproduced at the predetermined reproduction time on the basis of a schedule portion, receiving a predetermined input operation at the predetermined input time. The data processing device carries out a predetermined editing operation and resumes processing of the multimedia contents in accordance with the schedule portion.

Abstract: A multimedia processing device implements a script having a data structure that is formed of a drawing information describing portion where media data is chronologically described, and a user navigation information describing portion where correspondence between events and actions and implementation conditions are chronologically described. The multimedia processing device implements this script, and thereby, media data is chronologically reproduced, and at the same time, a user interface showing operations that can be chronologically carried out is outputted. Then, a predetermined process, such as an insertion of media data, can be implemented by carrying out the operations following the user interface according to predetermined timing.

Abstract: A multimedia processing device implements a script having a data structure that is formed of a drawing information describing portion where media data is chronologically described, and a user navigation information describing portion where correspondence between events and actions and implementation conditions are chronologically described. The multimedia processing device implements this script, and thereby, media data is chronologically reproduced, and at the same time, a user interface showing operations that can be chronologically carried out is outputted. Then, a predetermined process, such as an insertion of media data, can be implemented by carrying out the operations following the user interface according to predetermined timing.

Abstract: A system and method manages Quality-of-Service (QoS) in a network by allocating resources, such as available network bandwidth. The network devices transmit and receive data traffic streams, each of which includes QoS parameters, including a priority level and bandwidth allocation. The method includes choosing which existing QoS allocations are pre-empted, notifying original requesters of pre-empted allocations, and re-establishing pre-empted allocations with appropriate modifications. If a new QoS request cannot be accommodated due to the previous allocations to lower-priority requesters, the existing lower-priority allocations are released until enough allocations are released to accommodate the new request. Once the new request is allocated, the pre-empted configurations may be reallocated.