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公开(公告)号:US20150333717A1
公开(公告)日:2015-11-19
申请号:US14808705
申请日:2015-07-24
Applicant: OTICON A/S
Inventor: Niels Henrik PONTOPPIDAN , Thomas LUNNER , Marianna VATTI , Lars BRAMSLØW
IPC: H03G3/00
CPC classification number: H03G3/00 , G10L21/0205 , G10L21/0364 , H03C1/00 , H03C3/40 , H03C5/00 , H04R25/353 , H04R25/356 , H04R25/43 , H04R2225/43
Abstract: A method for processing an audio signal (i(t)), comprises: receiving a first set (x(t)) of time-varying signals representing a first sound comprised in the audio signal (i(t)), the first set (x(t)) of time-varying signals comprising an amplitude modulation signal (a(t)), a carrier frequency signal (fc(t)), a pitch signal (f0(t)) and an FM index signal (h(t)); and modifying the first set (x(t)) of time-varying signals by modifying the amplitude of the FM index signal (h(t)), thereby providing a first modified set (x′(t)) of time-varying signals. The resulting first modified set (x′(t)) of time-varying signals may subsequently be modulated to provide an audio output signal.
Abstract translation: 一种用于处理音频信号(i(t))的方法,包括:接收表示音频信号(i(t))中包含的第一声音的时变信号的第一组(x(t)),第一组 包括幅度调制信号(a(t)),载波频率信号(fc(t)),音调信号(f0(t))和FM索引信号(h)的时变信号(x(t)) (t)); 以及通过修改FM索引信号(h(t))的幅度来修改时变信号的第一集合(x(t)),从而提供时变信号的第一修改集(x'(t)) 。 可以随后调制所得到的时变信号的第一修改集(x'(t))以提供音频输出信号。
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公开(公告)号:US20130304459A1
公开(公告)日:2013-11-14
申请号:US13890001
申请日:2013-05-08
Applicant: OTICON A/S
Inventor: Niels Henrik PONTOPPIDAN , Thomas LUNNER , Marianna VATTI , Lars BRAMSLØW
IPC: H03G3/00
CPC classification number: H03G3/00 , G10L21/0205 , G10L21/0364 , H03C1/00 , H03C3/40 , H03C5/00 , H04R25/353 , H04R25/356 , H04R25/43 , H04R2225/43
Abstract: A method for processing an audio signal (i(t)), comprises: receiving a first set (x(t)) of time-varying signals representing a first sound comprised in the audio signal (i(t)), the first set (x(t)) of time-varying signals comprising an amplitude modulation signal (a(t)), a carrier frequency signal (fc(t)), a pitch signal (f0(t)) and an FM index signal (h(t)); and modifying the first set (x(t)) of time-varying signals by modifying the amplitude of the FM index signal (h(t)), thereby providing a first modified set (x′(t)) of time-varying signals. The resulting first modified set (x′(t)) of time-varying signals may subsequently be modulated to provide an audio output signal.
Abstract translation: 一种用于处理音频信号(i(t))的方法,包括:接收表示音频信号(i(t))中包含的第一声音的时变信号的第一组(x(t)),第一组 包括幅度调制信号(a(t)),载波频率信号(fc(t)),音调信号(f0(t))和FM索引信号(h)的时变信号(x(t)) (t)); 以及通过修改FM索引信号(h(t))的幅度来修改时变信号的第一集合(x(t)),从而提供时变信号的第一修改集(x'(t)) 。 可以随后调制所得到的时变信号的第一修改集(x'(t))以提供音频输出信号。
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