Patent application number | Description | Published |
20080199152 | Sound processing apparatus, sound processing method and program - A sound processing apparatus includes a sound determination portion operable to determine whether an input sound includes a first sound emitted from a particular source based on location information of the source, a sound separation portion operable to separate the input sound into the first sound and a second sound emitted from a source different from the particular source if the sound determination portion determines that the input sound includes the first sound, and a sound mixing portion operable to mix the first sound and the second sound separated by the sound separation portion at a prescribed volume ratio. | 08-21-2008 |
20090249942 | MUSIC PIECE REPRODUCING APPARATUS AND MUSIC PIECE REPRODUCING METHOD - A music piece reproducing apparatus has: a sound collecting unit collecting noise data of an ambient environment; an analyzing unit performing a frequency analysis to the noise data collected by the sound collecting unit and extracting a feature amount showing a feature of the noise data; a noise parameter database classifying the noise data every environment; and a reproducing unit reproducing music piece data which has been recorded in a recording medium and classified every category, wherein the analyzing unit classifies the noise data with reference to the noise parameter database on the basis of the extracted feature amount of the noise data, selects the previously-corresponded category of music pieces in accordance with a classification result of the noise data, and selects predetermined music piece data from music piece data classified into the selected category. | 10-08-2009 |
20090310799 | INFORMATION PROCESSING APPARATUS AND METHOD, AND PROGRAM - An information processing apparatus includes a band spreading unit configured to perform a band spreading process for generating components in a specific frequency band and adding the components to audio data, and a control unit configured to control the band spreading unit to execute the band spreading process using a band spreading method determined among a plurality of different band spreading methods, the band spreading method being defined in advance for a musical class determined using a feature of the audio data. | 12-17-2009 |
20100005953 | VOLUME ADJUSTING APPARATUS AND VOLUME ADJUSTING METHOD - A volume adjusting apparatus includes a sound collecting unit configured to collect noise data of a surrounding environment, an analyzing unit configured to extract a feature value indicating a feature of the noise data collected by the sound collecting unit and a feature value indicating a feature of supplied musical tune data, and a control unit configured to generate volume adjustment information for adjusting playback volume of the musical tune data based on the feature value of the noise data and the feature value of the musical tune data and adjusts the playback volume of the musical tune data based on the volume adjustment information. | 01-14-2010 |
20100058186 | REPRODUCING APPARATUS AND REPRODUCING METHOD - A reproducing apparatus includes a storage section, a judgment section, an analysis section, a classification section, an input section, and a reproduction section. The storage section stores a plurality of pieces of audio data. The judgment section judges, based on a length of each piece of audio data stored in the storage section, an analysis time interval for each piece of audio data. The analysis section analyzes the audio data in the analysis time interval judged by the judgment section. The classification section classifies the respective pieces of audio data into a plurality of predetermined classification items based on results of the analysis. The input section causes a user to select the classification item of the audio data to be reproduced. The reproduction section reproduces the audio data belonging to the classification item selected by the input section from a reproduction start point within the analysis time interval. | 03-04-2010 |
20120024130 | TEMPO DETECTION DEVICE, TEMPO DETECTION METHOD AND PROGRAM - A tempo detection device includes: a basic feature amount extracting section which extracts a plurality of types of basic feature amounts from an input audio signal; a weighting and adding section which weights and adds the basic feature amounts of the plurality of types extracted in the basic feature amount extracting section to obtain an addition signal; and a tempo detecting section which detects BPM indicating the tempo on the basis of a periodic component included in the addition signal obtained in the weighting and adding section. | 02-02-2012 |
20120093326 | AUDIO PROCESSING APPARATUS AND METHOD, AND PROGRAM - An audio processing apparatus includes an audio signal acquisition unit which acquires an audio signal of a musical piece, a feature value extraction unit which extracts a predetermined type of feature value from the audio signal acquired by the audio signal acquisition unit in time series, a change point detection unit which detects a change point in which the amount of change of the feature value extracted in time series by the feature value extraction unit is changed to be greater than a predetermined threshold value, a hook analysis unit which analyzes a hook place of the audio signal based on the feature value extracted by the feature value extraction unit in block units with the change point detected by the change point detection unit as a boundary, and a hook information output unit which outputs the hook place analyzed by the hook analysis unit as hook information. | 04-19-2012 |
20130162904 | SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, PROGRAM, RECORDING MEDIUM, AND SIGNAL PROCESSING SYSTEM - A signal processing device includes: a feature amount calculation unit calculating the respective feature amount of a first audio signal obtained through a first communication pathway and a second audio signal obtained through a second communication pathway corresponding to the first audio signal; an audio synchronization processing unit generating synchronization information of the first audio signal and the second audio signal based on the feature amounts calculated by the feature amount calculation unit; and an audio synthesis unit synthesizing the first audio signal with the second audio signal based on the synchronization information generated by the audio synchronization processing unit. | 06-27-2013 |
20130162905 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, PROGRAM, RECORDING MEDIUM, AND INFORMATION PROCESSING SYSTEM - An information processing device includes a feature amount calculating unit configured to obtain an audio feature amount of audio included in a content including audio; a synchronization information generating unit configured to generate synchronization information for synchronizing a plurality of content including the same or similar audio signal components, based on the audio feature amount obtained by the feature amount calculating unit; and a compositing unit configured to generate composited content, where a plurality of contents have been synchronized and composited using the synchronization information generated at the synchronization information generating unit. | 06-27-2013 |
20130182857 | SOUND PROCESSING APPARATUS, SOUND PROCESSING METHOD AND PROGRAM - A sound processing apparatus includes a sound determination portion operable to determine whether an input sound includes a first sound emitted from a particular source based on location information of the source, a sound separation portion operable to separate the input sound into the first sound and a second sound emitted from a source different from the particular source if the sound determination portion determines that the input sound includes the first sound, and a sound mixing portion operable to mix the first sound and the second sound separated by the sound separation portion at a prescribed volume ratio. | 07-18-2013 |
20130226599 | SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, PROGRAM, ELECTRONIC DEVICE, SIGNAL PROCESSING SYSTEM AND SIGNAL PROCESSING METHOD THEREOF - Provided is a signal processing apparatus including a first periodicity detecting section detecting periodicity information of an acoustic signal included in a first content, as first periodicity information, a second periodicity detecting section detecting the periodicity information of an acoustic signal included in a second content, as second periodicity information, a similarity calculating section calculating a similarity between the first periodicity information detected by the first periodicity detecting section and the second periodicity information detected by the second periodicity detecting section, and a synchronization information generating section generating synchronization information used at a time of synchronizing the first content and the second content, based on the similarity calculated by the similarity calculating section. | 08-29-2013 |