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公开(公告)号：EP1553804B1
公开(公告)日：2008-12-24
申请号：EP05000151.0
申请日：2005-01-05
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公开(公告)号：EP1553804A3
公开(公告)日：2006-12-20
申请号：EP05000151.0
申请日：2005-01-05
发明人： Kato, Shinjiro, Kawagoe Koujou , Shimizu, Akira, Kawagoe Koujou , Oshima, Moriyuki, Kawagoe Koujou , Nakazato, Mitsuo, Kawagoe Koujou , Kobayashi, Shigeki, Kawagoe Koujou , Toyoda, Kunio , Takano, Koji , Hino, Shokichiro , Endo, Tomohiko , Tsuchiya, Kouichi
摘要： An acoustic characteristic adjustment device (1) whose acoustic characteristics can be adjusted freely by a listener. The device (1) comprises signal processing units (Al-Ap) for performing signal processing on audio signals (X1-Xp) and outputting the resultant to speakers of respective channels. The signal processing units are composed of high frequency convolution arithmetic sections (B1-Bp), low frequency convolution arithmetic sections (C1-Cp), and delay sections (D1-Dp,E1-Ep). The acoustic characteristic adjustment device (1) further comprises: an operation section (30) from which the listener or the like inputs a target characteristic in order to adjust a desired acoustic characteristic; an impulse characteristic control section (21); and a delay time control section (22). Based on the target characteristic, the impulse characteristic control section (21) calculates impulse response data (hlm-hpm, hln-hpn) to make the arithmetic sections (B1-Bp, C1-Cp)) perform respective convolution arithmetics. The delay time control section calculates alignment delay times necessary for sounds emitted from the speakers to reach a listening position or the like, respectively. The delay time control section also calculates correction times for compensating respective deviations in phase between output signals (X11-Xp1) in a high frequency band, which are output from the high frequency convolution arithmetic sections (B1-Bp) as a result of convolution arithmetics, and output signal (X12-Xp2) in a low frequency band, which are output from the low frequency convolution arithmetic sections. Times obtained by correcting the alignment delay times with the correction times are set as the delay times of the delay sections (D1-Dp, E1-Ep), respectively.
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3.发明公开
公开(公告)号：EP1553804A2
公开(公告)日：2005-07-13
申请号：EP05000151.0
申请日：2005-01-05
发明人： Kato, Shinjiro, Kawagoe Koujou , Shimizu, Akira, Kawagoe Koujou , Oshima, Moriyuki, Kawagoe Koujou , Nakazato, Mitsuo, Kawagoe Koujou , Kobayashi, Shigeki, Kawagoe Koujou , Toyoda, Kunio , Takano, Koji , Hino, Shokichiro , Endo, Tomohiko , Tsuchiya, Kouichi
摘要： An acoustic characteristic adjustment device (1) whose acoustic characteristics can be adjusted freely by a listener. The device (1) comprises signal processing units (Al-Ap) for performing signal processing on audio signals (X1-Xp) and outputting the resultant to speakers of respective channels. The signal processing units are composed of high frequency convolution arithmetic sections (B1-Bp), low frequency convolution arithmetic sections (C1-Cp), and delay sections (D1-Dp,E1-Ep). The acoustic characteristic adjustment device (1) further comprises: an operation section (30) from which the listener or the like inputs a target characteristic in order to adjust a desired acoustic characteristic; an impulse characteristic control section (21); and a delay time control section (22). Based on the target characteristic, the impulse characteristic control section (21) calculates impulse response data (hlm-hpm, hln-hpn) to make the arithmetic sections (B1-Bp, C1-Cp)) perform respective convolution arithmetics. The delay time control section calculates alignment delay times necessary for sounds emitted from the speakers to reach a listening position or the like, respectively. The delay time control section also calculates correction times for compensating respective deviations in phase between output signals (X11-Xp1) in a high frequency band, which are output from the high frequency convolution arithmetic sections (B1-Bp) as a result of convolution arithmetics, and output signal (X12-Xp2) in a low frequency band, which are output from the low frequency convolution arithmetic sections. Times obtained by correcting the alignment delay times with the correction times are set as the delay times of the delay sections (D1-Dp, E1-Ep), respectively.
摘要翻译： 声学特性调节装置（1），其声学特性可由听者自由调节。 装置（1）包括用于对音频信号（X1-Xp）执行信号处理的信号处理单元（Al-Ap），并将结果输出到相应通道的扬声器。 信号处理单元由高频卷积运算部（B1-Bp），低频卷积运算部（C1-Cp）和延迟部（D1-Dp，E1-Ep）构成。 声学特性调节装置（1）还包括：操作部（30），收听者等从中输入目标特性，以便调节期望的声学特性; 脉冲特性控制部（21）; 和延迟时间控制部分（22）。 基于目标特性，脉冲特性控制部（21）计算脉冲响应数据（hlm-hpm，hln-hpn），使运算部（B1-Bp，C1-Cp）进行各自的卷积运算。 延迟时间控制部分分别计算从扬声器发出的声音到达聆听位置等所需的对准延迟时间。 延迟时间控制部分还计算用于补偿从高频卷积算术部分（B1-Bp）输出的高频带中的输出信号（X11-Xp1）之间的相位偏差的校正时间，作为卷积算术 ，以及从低频卷积运算部输出的低频带的输出信号（X12-Xp2）。 通过用校正时间校正对准延迟时间获得的时间分别被设置为延迟部分（D1-Dp，E1-Ep）的延迟时间。
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