公开(公告)号：EP3011556A1

公开(公告)日：2016-04-27

申请号：EP14731961.0

申请日：2014-06-20

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： SUKOWSKI, Janine ,  SPERSCHNEIDER, Ralph ,  MARKOVIC, Goran ,  JAEGERS, Wolfgang ,  HELMRICH, Christian ,  EDLER, Bernd ,  GEIGER, Ralf

IPC分类号： G10L19/005 ,  G10L19/02

CPC分类号： G10L19/005 ,  G10L19/0212 ,  G10L19/06

摘要： An approach is described that obtains spectrum coefficients for a replacement frame of an audio signal. A tonal component of a spectrum of an audio signal is detected based on a peak that exists in the spectra of frames preceding a replacement frame. For the tonal component of the spectrum a spectrum coefficients for the peak and its surrounding in the spectrum of the replacement frame is predicted, and for the non-tonal component of the spectrum a non-predicted spectrum coefficient for the replacement frame or a corresponding spectrum coefficient of a frame preceding the replacement frame is used.

摘要翻译： 的方法进行说明那样取得的频谱系数的音频信号的替换帧。 的音频信号的频谱的音调型分量是基于检测到的峰值存在那样在帧的光谱preceding-替换帧。 对于频谱的音调型分量的峰值的频谱系数和其在更换帧的频谱周围被预测，并且对于频谱的非音调分量的替换帧或一个相应的频谱的非预测频谱系数 preceding-替换帧的帧的系数被使用。