-
公开(公告)号：EP1704559A1
公开(公告)日：2006-09-27
申请号：EP05702547.0
申请日：2005-01-04
IPC分类号： G10L19/02
摘要： A system and method for automatically equalizing audio signals uses an energy calculation unit (140) to calculate spectral energy values for a plurality of frequency bands based on equalized frequency components. A spreading unit (150) then determines spreaded energy values for each frequency band based on the measured spectral energy values and a spreading function, where the spreading function defines the spread of spectral energy across the frequency bands. An update unit (160, 170) then updates equalizer settings for each frequency band by taking a previous (or initial) equalizer setting and subtracting a normalized ratio of the measured spectral energy value and the spreaded energy value for that frequency band. In this manner, the accumulation of adjustments to the equalizer settings results in slightly attenuating frequency bands that are clearly audible and slightly amplifying frequency bands that are masked by other frequency bands.
-
公开(公告)号：EP1745463B1
公开(公告)日：2008-07-09
申请号：EP05718776.7
申请日：2005-04-21
发明人： BREEBAART, Dirk , MCKINNEY, Martin
CPC分类号： G10L15/14 , G10H1/0008 , G10H2210/031 , G10H2210/076 , G10H2230/015 , G10H2230/021 , G10H2240/061 , G10H2240/081 , G10H2240/091 , G10H2240/135 , G10H2240/155 , G10H2250/031 , G10L25/48
摘要： The invention describes a method of classifying an audio input signal (1), said method comprising the steps of extracting a number of features (2) of the audio input signal (1), deriving a feature vector (3) for the input audio signal (1) based on these features (2), and determining the probability that the feature vector (3) for the input audio signal (1) falls within any of a number of classes (C1, C2, ..., Cn), each corresponding to a particular release-date information.
-
3.发明公开A DEVICE AND A METHOD TO PROCESS AUDIO DATA, A COMPUTER PROGRAM ELEMENT AND A COMPUTER-READABLE MEDIUM 有权装置和方法用于处理音频数据，计算机程序元件和计算机可读介质
公开(公告)号：EP1817938A1
公开(公告)日：2007-08-15
申请号：EP05810047.0
申请日：2005-11-16
CPC分类号： H04S3/02 , H04R2499/11 , H04S1/00
摘要： An audio data processing device (100) comprises an audio redistributor (101) adapted to generate a first number of audio data output signals (102; Z1 ... ZM) based on a second number of audio data input signals (103; X1 ... XN), and an audio classifier (104) adapted to generate gradually sliding control signals (P), in a gradually sliding dependence on types of audio content according to which the second number of audio data input signals (103; X1 ... XN) are classified, for controlling the audio redistributor (101) that generates the first number of audio data output signals ( 102 ; Z1 ... ZM) from the second number of audio data input signals (103; X1 ... XN).
-
4.发明授权A DEVICE AND A METHOD TO PROCESS AUDIO DATA, A COMPUTER PROGRAM ELEMENT AND A COMPUTER-READABLE MEDIUM 有权装置和方法用于处理音频数据，计算机程序元件和计算机可读介质
公开(公告)号：EP1817938B1
公开(公告)日：2008-08-20
申请号：EP05810047.0
申请日：2005-11-16
CPC分类号： H04S3/02 , H04R2499/11 , H04S1/00
摘要： An audio data processing device (100) comprises an audio redistributor (101) adapted to generate a first number of audio data output signals (102; Z1 ... ZM) based on a second number of audio data input signals (103; X1 ... XN), and an audio classifier (104) adapted to generate gradually sliding control signals (P), in a gradually sliding dependence on types of audio content according to which the second number of audio data input signals (103; X1 ... XN) are classified, for controlling the audio redistributor (101) that generates the first number of audio data output signals ( 102 ; Z1 ... ZM) from the second number of audio data input signals (103; X1 ... XN).
-
公开(公告)号：EP1745463A1
公开(公告)日：2007-01-24
申请号：EP05718776.7
申请日：2005-04-21
发明人： BREEBAART, Dirk , MCKINNEY, Martin
CPC分类号： G10L15/14 , G10H1/0008 , G10H2210/031 , G10H2210/076 , G10H2230/015 , G10H2230/021 , G10H2240/061 , G10H2240/081 , G10H2240/091 , G10H2240/135 , G10H2240/155 , G10H2250/031 , G10L25/48
摘要： The invention describes a method of classifying an audio input signal (1), said method comprising the steps of extracting a number of features (2) of the audio input signal (1), deriving a feature vector (3) for the input audio signal (1) based on these features (2), and determining the probability that the feature vector (3) for the input audio signal (1) falls within any of a number of classes (C1, C2, ..., Cn), each corresponding to a particular release-date information.
-
-
-
-
搜索结果
5 条记录 (耗时 0.008 秒)
