公开(公告)号：US20130064379A1

公开(公告)日：2013-03-14

申请号：US13612413

申请日：2012-09-12

申请人： Bryan Pardo ,  Zafar Rafii

发明人： Bryan Pardo ,  Zafar Rafii

IPC分类号： H04R29/00

CPC分类号： G10H1/0008 ,  G10H2210/051 ,  G10H2210/066 ,  G10H2250/135 ,  G10H2250/235 ,  G10H2250/641 ,  H04S3/008 ,  H04S7/30 ,  H04S7/40 ,  H04S2400/15 ,  H04S2420/07

摘要： A method includes determining a first spectrogram of the audio signal, defining a similarity matrix of the audio signal based on the first spectrogram and a transposed version of the first spectrogram, identifying two or more similar frames in the similarity matrix that are more similar to a designated frame than to one or more other frames in the similarity matrix, creating a repeating spectrogram model based on the two or more similar frames that are identified in the similarity matrix, and deriving a mask based on the repeating spectrogram model and the first spectrogram of the audio signal. The mask is representative of similarities between the repeating spectrogram model and the first spectrogram of the audio signal. The method also includes extracting a repeating structure from the audio signal by applying the mask to the audio signal.

摘要翻译： 一种方法包括确定音频信号的第一频谱图，基于第一谱图定义音频信号的相似矩阵，以及识别第一谱图的转置版本，识别相似性矩阵中更相似的两个或多个相似帧 指定帧比相似矩阵中的一个或多个其他帧，基于在相似性矩阵中识别的两个或更多个相似帧创建重复频谱图模型，并且基于重复频谱图模型和第一频谱图 音频信号。 该掩模代表了重复频谱图模型和音频信号的第一个频谱图之间的相似性。 该方法还包括通过将音程应用于音频信号从音频信号中提取重复结构。

公开(公告)号：US09093056B2

公开(公告)日：2015-07-28

申请号：US13612413

申请日：2012-09-12

申请人： Bryan Pardo ,  Zafar Rafii

发明人： Bryan Pardo ,  Zafar Rafii

IPC分类号： H04R29/00 ,  G10H1/00 ,  H04S3/00 ,  H04S7/00

CPC分类号： G10H1/0008 ,  G10H2210/051 ,  G10H2210/066 ,  G10H2250/135 ,  G10H2250/235 ,  G10H2250/641 ,  H04S3/008 ,  H04S7/30 ,  H04S7/40 ,  H04S2400/15 ,  H04S2420/07

摘要： A method includes determining a first spectrogram of the audio signal, defining a similarity matrix of the audio signal based on the first spectrogram and a transposed version of the first spectrogram, identifying two or more similar frames in the similarity matrix that are more similar to a designated frame than to one or more other frames in the similarity matrix, creating a repeating spectrogram model based on the two or more similar frames that are identified in the similarity matrix, and deriving a mask based on the repeating spectrogram model and the first spectrogram of the audio signal. The mask is representative of similarities between the repeating spectrogram model and the first spectrogram of the audio signal. The method also includes extracting a repeating structure from the audio signal by applying the mask to the audio signal.

摘要翻译： 一种方法包括确定音频信号的第一频谱图，基于第一谱图定义音频信号的相似矩阵，以及识别第一谱图的转置版本，识别相似性矩阵中更相似的两个或多个相似帧 指定帧比相似矩阵中的一个或多个其他帧，基于在相似性矩阵中识别的两个或更多个相似帧创建重复频谱图模型，并且基于重复频谱图模型和第一频谱图 音频信号。 该掩模代表了重复频谱图模型和音频信号的第一个频谱图之间的相似性。 该方法还包括通过将音程应用于音频信号从音频信号中提取重复结构。