Samsung Electronics Co., Ltd.

Ki Wan Eom

Jea Won Lee

Hyoung Gook Kim

Ji Yeun Kim

Xuan Zhu

Jae Won Lee

Weiwei Cui

Yuan Yuan She

Hyung-Joon Lim

Young Su Moon

Jin Guk Jeong

Yuan Shi

Jung Eun Kim

Jeong Mi Cho

Ji Yuen Kim

Richard M Stern

Chan Woo Kim

Richard Stern

An audio information retrieval method, medium, and system that can rapidly retrieve audio information, even in noisy environments, by extracting a modulation spectrum that is robust against noise, converting features of the extracted modulation spectrum into hash bits, and using a hash table. The audio information retrieval method may include extracting a modulation spectrum from audio data of a compressed domain, converting the extracted modulation spectrum into fingerprint bits, arranging the fingerprint bits in a form of a hash table, converting a received query into an address by a hash function corresponding to the query, and retrieving the audio information by referring to the hash table.

Method, medium, and system for music retrieval using modulation spectrum

A method, medium, and system generating a video abstract with high processing speeds, may include a detecting of an event candidate section from video data, based on audio information, a detecting of shot change information from the detected event candidate section, a detecting of final event sections from the detected event candidate section, based on the detected shot change information and visual information, and a generating of video abstract information by merging the extracted final event sections.

Method, medium, and system generating video abstract information

A personalized service method using a user history in a mobile terminal is provided. The personalized service method using the user history in the mobile terminal includes: checking at least one of event information and context information which occurred due to a user; checking a user's location, a user's condition, a user's emotional state, or an event occurrence time when the at least one of event information and context information occur; reflecting the user's location, the user's condition, the user's emotional state, or the event occurrence time in the at least one of event information and context information, and recording the at least one of event information and context information, having reflected the user's location, the user's condition, the user's emotional state, or the event occurrence time, in a database in a diary type; and displaying a representing image corresponding to the at least one of event information and context information, having been recorded in the diary type.

Personalized service method using user history in mobile terminal and system using the method

A signal separation system and a method for automatically selecting a threshold to separate sound sources. The signal separation system calculates a power sequence for a target signal using a target mask, and a power sequence for an interference signal using a complementary mask, based on signals received from a plurality of microphones; applies a nonlinearity to the target signal power sequence and the interference signal power sequence; calculates a correlation coefficient of the nonlinear target signal power sequence and the nonlinear interference signal power sequence; and sets a noise masking threshold that minimizes the correlation coefficient.

Signal separation system and method for automatically selecting threshold to separate sound sources

An apparatus for estimating a Direction of Arrival (DOA) of a wideband includes a first signal receiving unit and a second signal receiving unit to receive a wideband signal while satisfying d&#x2266;Mc/2f, wherein 'd' denotes a distance the first signal receiving unit and the second signal receiving unit are spaced apart from each other, 'c' denotes the speed of sound, &#x2018;M&#x2019; denotes a number of wideband frequencies being a number of fast Fourier transformation (FFT) points of a wideband signal, and &#x2018;f&#x2019; denotes a sampling frequency, and a DOA calculating unit to calculate a DOA (&#x3b8;) using a normalized frequency () which is obtained by performing an FFT on the respective wideband signals transmitted from the first signal receiving unit and the second signal receiving unit, and using the distance d.

Direction of arrival estimation apparatus and method thereof

A microphone signal compensation apparatus includes a plurality of audio input units to respectively receive a target signal, each audio input unit of the plurality of audio input units including a microphone; a constant filter unit to selectively apply a constant filtering calibration scheme to signals output by the plurality of audio input units to compensate for a difference in at least one characteristic among the audio input units, the constant filtering calibration scheme being estimated from an average value of a ratio of a desired signal to a reference signal among the signals output by the plurality of audio input units; and a noise remover to remove noise from the signals processed by the constant filter unit, and to separate the target signal from the signals from which the noise has been removed.

Microphone signal compensation apparatus and method thereof

A system for playing music is provided. The system includes: a mood categorizer categorizing a mood of a music file; a similar music search module searching for similar music having a mood similar to music which a user desires by referring to the categorized mood; a highlight detector detecting a highlight section of the music file; and a theme categorizer categorizing a theme of the music file.

System for playing music and method thereof

A similar music search method, including: extracting an audio feature value from a compression zone of a music file and generating a music content summary using the extracted audio feature; classifying a mood and a genre of the music file by using the generated music content summary; extracting a similarity feature for a similarity retrieval from the music content summary; storing an information on the classified mood and a genre and the extracted similarity feature information in a database; receiving a query music; detecting the mood and the genre of the query music; measuring a similarity between the query music and music files having a mood and a genre identical to the query music by referring to the database; and retrieving the similar music with respect to the query music based on the measured similarity.

Similar music search method and apparatus using music content summary

A method and apparatus for classifying mood of music at high speed. The method includes: extracting a Modified Discrete Cosine Transformation-based timbre feature from a compressed domain of a music file; extracting a Modified Discrete Cosine Transformation-based tempo feature from the compressed domain of the music file; and classifying the mood of the music file based on the extracted timbre feature and the extracted tempo feature.

Method and apparatus for classifying mood of music at high speed

Embodiments of the present invention relate to a method, medium, and system for summarizing music. The method includes summarizing a music content by extracting an audio feature value from a compressed segment of music data, tracking change points of the music content using the extracted audio feature value and re-configuring segments, selecting a fixed length fragment from each of the reconfigured segments and clustering the selected fragment so as to measure similarity and redundancy between the respective segments, and generating a summary of the music content using a segment selected based on the measured similarity and redundancy between the respective segments.

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Seoul, South Korea

Ki Wan Eom