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1. 发明专利

JP2009055079A Signal processor, signal processing method and program 有权
标题翻译：信号处理器，信号处理方法和程序
公开(公告)号：JP2009055079A
公开(公告)日：2009-03-12
申请号：JP2007216983
申请日：2007-08-23
申请人： Sony Corp , ソニー株式会社
发明人： YAMADA YUJI , OKIMOTO ETSU
IPC分类号： H04R3/04
CPC分类号： H03G9/025 , H04R3/04
摘要： PROBLEM TO BE SOLVED: To well improve the reproduction sound of low-level components in a compact speaker. SOLUTION: The signal processor includes a section for extracting the low-frequency band signal of an input audio signal, a section for generating a harmonic signal of the low-frequency band signal, a section for detecting the level of the low-frequency band signal, and a control section for regulating the level of the low-frequency band signal and the level of the harmonic signal in accordance with the level of the low-frequency band signal detected at the level detecting section. Consequently, low-level enhancement can be performed with natural sound quality by increasing the amount of boost until the low-level signal reaches a predetermined detection level, thus low-level enhancement can be continued by a virtual signal when a low-level signal having a larger level is input. With such an arrangement, a multiplication effect that low-level enhancement can be performed by compensating for the mutual disadvantages of the boost system and the virtual signal enhancement system can be attained. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了很好地改善紧凑型扬声器中低级组件的再现声音。解决方案：信号处理器包括用于提取输入音频信号的低频带信号的部分，用于产生低频带信号的谐波信号的部分，用于检测低频带信号的电平的部分，频带信号，以及用于根据在电平检测部分检测到的低频带信号的电平来调节低频带信号的电平和谐波信号的电平的控制部分。因此，通过增加升压量直到低电平信号达到预定检测电平，可以通过自然声音质量执行低电平增强，从而当具有低电平信号的低电平信号具有输入较大的电平。通过这样的布置，可以实现通过补偿升压系统和虚拟信号增强系统的相互缺点来执行低级增强的乘法效果。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008104240A Audio signal processing apparatus and method 有权
标题翻译：音频信号处理装置和方法
公开(公告)号：JP2008104240A
公开(公告)日：2008-05-01
申请号：JP2008000249
申请日：2008-01-07
申请人： Sony Corp , ソニー株式会社
发明人： YAMADA YUJI , OKIMOTO ETSU
IPC分类号： H04S7/00
摘要： PROBLEM TO BE SOLVED: To provide an audio signal processing apparatus capable of excellently separating audio signals of a plurality of sound sources from two systems of audio signals including audio signals of a plurality of sound sources. SOLUTION: Two systems of input audio time-series signals are converted into frequency domain signals, respectively. Regarding two systems of frequency domain signals, a level ratio or a level difference between corresponding frequency division spectrums is calculated. Frequency components with the calculated level ratio or level difference being a predetermined value or near the predetermined value, are extracted by a first sound source separating means and a second sound source separating means and the extracted frequency domain signals are converted into time-series signals as first and second output audio signals. The frequency domain signals from the first and second sound source separating means are subtracted from frequency domain signals of input audio of two systems, and frequency domain signals of the subtraction results are converted into time-series signals as third and fourth output audio signals. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种音频信号处理装置，其能够从包括多个声源的音频信号的两个音频信号系统中优良地分离多个声源的音频信号。
解决方案：输入音频时间序列信号的两个系统分别转换为频域信号。关于频域信号的两个系统，计算相应频谱之间的电平比或电平差。通过第一声源分离装置和第二声源分离装置提取具有计算的电平比或电平差为预定值或接近预定值的频率分量，并将提取的频域信号转换为时间序列信号，如第一和第二输出音频信号。来自第一和第二声源分离装置的频域信号从两个系统的输入音频的频域信号中减去，并且减法结果的频域信号被转换为时间序列信号作为第三和第四输出音频信号。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2006276883A Signal processing apparatus and acoustic reproducing apparatus 审中-公开
标题翻译：信号处理装置和声音再现装置
公开(公告)号：JP2006276883A
公开(公告)日：2006-10-12
申请号：JP2006157694
申请日：2006-06-06
申请人： Sony Corp , ソニー株式会社
发明人： YAMADA YUJI , INANAGA KIYOFUMI
IPC分类号： G10K15/12 , H04R3/00
摘要： PROBLEM TO BE SOLVED: To satisfactorily process a signal by use of even an FIR filter with the short tap length. SOLUTION: A digital audio signal inputted by an input terminal 101 is supplied to two signal processing systems, respectively. The signal supplied to one signal processing system is inputted to and delayed by a delay element 102 by a predetermined time, and then outputted. The signal outputted from the delay element is attenuated by an attenuator 103 and added to the digital signal inputted thereto from the input terminal 101 by an adding circuit 104, whereafter it is supplied to the FIR filer 105. Then an impulse response is superimposed upon the digital signal inputted to the FIR filter 105 by use of a coefficient preset in the FIR filter 105 and then outputted from an output terminal 106. An attenuation factor of the attenuator 103 is set to be such a value that the impulse response the inputted digital signal may be smoothly connected to the impulse response of the output from the delay element 102. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过使用具有短分接长度的FIR滤波器令人满意地处理信号。解决方案：由输入端101输入的数字音频信号分别提供给两个信号处理系统。提供给一个信号处理系统的信号由延迟元件102输入并延迟预定时间，然后输出。从延迟元件输出的信号由衰减器103衰减，并通过加法电路104与输入端子101输入的数字信号相加，然后将其提供给FIR滤波器105.然后将脉冲响应叠加在数字信号通过使用在FIR滤波器105中预设的系数输入到FIR滤波器105，然后从输出端子106输出。衰减器103的衰减系数被设定为使得输入的数字信号可以顺利地连接到来自延迟元件102的输出的脉冲响应。（C）2007，JPO和INPIT

4. 发明专利

JP2006014219A Sound image localization apparatus 有权
标题翻译：声像定位装置
公开(公告)号：JP2006014219A
公开(公告)日：2006-01-12
申请号：JP2004191953
申请日：2004-06-29
申请人： Sony Corp , ソニー株式会社
发明人： YAMADA YUJI , OKIMOTO ETSU
IPC分类号： H04S5/02 , H04R5/00 , H04S1/00 , H04S5/00
CPC分类号： H04S1/00
摘要： PROBLEM TO BE SOLVED: To provide a sound image localization apparatus with a simple configuration capable of forming a plurality of independent sound images so as to allow a user to listen to the sound images. SOLUTION: The sound image localization apparatus with a simple configuration is configured such that signal processing means 11L, 11R execute noncorrelation processing and sound image localizing processing for an input audio signal in a lump by using a pair of output functions hl(x) and hr(x) packaging a noncorrelation function for generating a plurality of audio signals with low correlativity from the input audio signal SA and a sound image localization function for localizing respective sound images of a plurality of audio signals to an optional sound source position so that the sound image localization apparatus can form a plurality of independent sound images to allow the user to listen to the sound images. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有能够形成多个独立声音图像的简单配置的声像定位装置，以便允许用户收听声音图像。解决方案：具有简单配置的声像定位装置被配置为使得信号处理装置11L，11R通过使用一对输出函数hl（x）来执行对输入音频信号的非相关处理和声像定位处理）和hr（x）封装用于从输入音频信号SA产生具有低相关性的多个音频信号的非相关函数和用于将多个音频信号的各个声音图像定位到可选声源位置的声像定位功能，从而声像定位装置可以形成多个独立的声音图像，以允许用户收听声音图像。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005184041A Apparatus and system for reproducing audio signal 有权
标题翻译：用于复制音频信号的装置和系统
公开(公告)号：JP2005184041A
公开(公告)日：2005-07-07
申请号：JP2003417335
申请日：2003-12-15
申请人： Sony Corp , ソニー株式会社
发明人： YAMADA YUJI , OKIMOTO ETSU
IPC分类号： H04R3/04 , G10L19/00 , G10L19/14 , H03H17/02 , H03H17/06
摘要： PROBLEM TO BE SOLVED: To provide an audio signal processing apparatus which well switches processing with less noise because difference in a propagation delay time never occurs between filters to be switched, and because the phase of a waveform is not deviated. SOLUTION: In the audio signal processing apparatus 1, the output of a second filter 4 is inputted into a first delay device 6 having a delay time of 2.9 ms, and the output of a third filter 5 is inputted into a second delay device 7 having a delay time of 5.8 ms. By doing this, the delay time in the maximum value of impulse response of each filter matches, and a noise to be generated in switching between the filters is reduced. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种音频信号处理装置，其以较少的噪声进行良好的切换处理，因为在要切换的滤波器之间不会发生传播延迟时间的差异，并且因为波形的相位没有偏离。解决方案：在音频信号处理装置1中，第二滤波器4的输出被输入到具有2.9ms的延迟时间的第一延迟装置6中，并且第三滤波器5的输出被输入到第二延迟装置7具有5.8ms的延迟时间。通过这样做，每个滤波器的脉冲响应的最大值中的延迟时间相匹配，并且减少在滤波器之间的切换中产生的噪声。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005167380A Audio signal processing apparatus and audio signal processing method 有权
标题翻译：音频信号处理设备和音频信号处理方法
公开(公告)号：JP2005167380A
公开(公告)日：2005-06-23
申请号：JP2003400177
申请日：2003-11-28
申请人： Sony Corp , ソニー株式会社
发明人： OKIMOTO ETSU , YAMADA YUJI
IPC分类号： H03G9/16 , G10L11/00 , G11B20/04 , H03G3/02 , H03G3/30 , H03G9/06
CPC分类号： H03G9/005 , H03G9/06
摘要： PROBLEM TO BE SOLVED: To provide an audio signal processing apparatus for using an equalizer and an automatic level control section so as to carry out level control while ensuring a maximum dynamic range at all times.
SOLUTION: A level of an output signal is controlled in response to a level of an input signal by supplying the output signal whose level is converted by a level converter 7 and to which a particular frequency characteristic is attached by a equalizer 3. That is, the amplification factor of the signal is automatically controlled so that the level of the output signal does not exceed a permissible range. Particularly, a control section 10 of the audio signal processing apparatus varies a gain of level converters 7, 8 and a threshold th being a parameter used by a gain calculation unit 5 in the automatic level control section 4 in response to a peak gain G being a setting value of the equalizer 3 set by a user using an operation section 11.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于使用均衡器和自动电平控制部分的音频信号处理装置，以便在始终确保最大动态范围的同时执行电平控制。解决方案：通过提供其电平由电平转换器7转换并由均衡器3附加特定频率特性的输出信号，响应于输入信号的电平来控制输出信号的电平。也就是说，信号的放大系数被自动控制，使得输出信号的电平不超过容许范围。特别地，音频信号处理装置的控制部分10响应于峰值增益G，改变电平转换器7,8的增益和作为由增益计算单元5在自动电平控制部分4中使用的参数的阈值th 用户使用操作部分11设置的均衡器3的设定值。（C）2005年，JPO＆NCIPI

7. 发明专利

JP2003274493A Sound reproduction device 有权
标题翻译：声音再现设备
公开(公告)号：JP2003274493A
公开(公告)日：2003-09-26
申请号：JP2002073923
申请日：2002-03-18
申请人： Sony Corp , ソニー株式会社
发明人： YAMADA YUJI , OKIMOTO ETSU
IPC分类号： H04S1/00
CPC分类号： H04S1/005
摘要： PROBLEM TO BE SOLVED: To clearly localize a sound image at a position outside the head of a listener or at an optional position around the listener even when the circuit scale and the computational quantity of a signal processing section for sound image localization are suppressed. SOLUTION: Filters 21LL, 21LR convolute and impulse response equivalent to transfer functions HLL, HLR from a position of a left side sound source to be localized to left and right ears or the listener on an audio signal D1 and filters 21RL, 21RR convolute an impulse response equivalent to transfer functions HRL, HRR from a position of a right side sound source to be localized to the left and right ears of the listener on an audio signal Dr. Filters 33LL, 33LR extract a low frequency component of the audio signal D1 and filters 33LR, 33RR extract a low frequency component of the audio signal Dr. Output signals from the filters 21LL, 21RL, and 33LL, 33RL are summed and output signals from the filters 21LR, 21RR, and 33LR, 33RR are summed. COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：即使当用于声像定位的信号处理部分的电路规模和计算量是在声音图像定位的信号处理部分的电路规模和计算量时，也可以将收听者的头部外的位置处的声音图像定位在收听者周围的可选位置被压制解决方案：将来自左侧声源的位置的传递函数HLL，HLR的滤波器21LL，21LR卷积和脉冲响应在音频信号D1和滤波器21RL，21RR上定位到左耳和右耳或收听者将来自右侧声源的位置的等效于传递函数HRL，HRR的脉冲响应卷积在音频信号上被定位到收听者的左耳和右耳。滤波器33LL，33LR提取音频的低频分量信号D1和滤波器33LR，33RR将来自滤波器21LL，21RL，33LL，33RL的音频信号Dr.Wl输出信号的低频分量相加，滤波器21LR，21RR，33LR，33RR的输出信号相加。版权所有（C）2003，JPO

8. 发明专利

JP2002244683A SOUND SIGNAL PROCESSOR 失效
公开(公告)号：JP2002244683A
公开(公告)日：2002-08-30
申请号：JP2001042107
申请日：2001-02-19
申请人： SONY CORP
发明人： YAMADA YUJI
IPC分类号： A63F13/54 , A63F13/77 , G10K15/12 , H04S1/00 , H04S7/00 , A63F13/00
摘要： PROBLEM TO BE SOLVED: To provide a sound signal processor which can give sound effects through simple processing. SOLUTION: The sound signal processor is equipped with a 2nd sound source data storage part which stores 2nd sound source data 3 subjected to signal preprocessing by software for giving specific sound effects to 1st sound source data and a sound control processing part 8 which controls the sound effects of the 2nd sound source data 3 by a middleware processing part 10 according to information from an input part 4 when the 2nd sound source data 3 are read out of the 2nd sound source data storage part and reproduced through headphones 7R and 7L, and controls the sound effects on reproduction output signals D1 and D2 arising from the 2nd sound source data 3.

9. 发明专利

JP2002044797A HEAD PHONE DEVICE AND SPEAKER DEVICE 失效
公开(公告)号：JP2002044797A
公开(公告)日：2002-02-08
申请号：JP2000227350
申请日：2000-07-27
申请人： SONY CORP
发明人： KURISU HIROSHI , YAMADA YUJI
IPC分类号： H04S1/00 , H04S7/00
摘要： PROBLEM TO BE SOLVED: To reduce cost by making the circuit scale comparatively small. SOLUTION: A signal processing apparatus 40 obtains output left and right sound signals by convoluting each impulse response from a sound source to the left and right ear of listner calculated beforehand by measurement or calculation using digital FIR(finite impulse response filters 41, 42 to 48, with regard to the input sound signals. In a head phone device where sound images generated by the input sound signals are localized outside the head of the listener by driving left and right speakers 12L and 12R of a head phone 12 using the output left and right sound signals, the response of the second area A2 of this impulse response divided into a first and second area A1 and A2 in terms of time beforehand is thinned out and convoluted by the digital FIR response filters 41, 42 to 48.

10. 发明专利

JPH0970094A HEADPHONE DEVICE 失效
公开(公告)号：JPH0970094A
公开(公告)日：1997-03-11
申请号：JP22400495
申请日：1995-08-31
申请人： SONY CORP
发明人： YAMADA YUJI , INANAGA KIYOFUMI
IPC分类号： G01C19/02 , G01C19/42 , G01C19/56 , G01C19/5649 , G01C19/5776 , H04R5/033 , H04S1/00 , H04S3/00 , H04S7/00 , G01P9/02
摘要： PROBLEM TO BE SOLVED: To reduce an arithmetic amount of an impulse response when sound image localization is realized in a forward and a backward direction. SOLUTION: When a headphone 7 has a rotary motion, a rotation angular velocity sensor 8 fitted to a head band 7a provides an output of a voltage proportional to the angular velocity. The output signal is filtered by a band limit filter 9 coded by an A/D converter 10 and given to a microprocessor 11. The output signal of the A/D converter 10 received by the microprocessor 11 sampled and integrated at a prescribed time interval and converted into angle data. The rotation angle to locate the sound image is calculated from the angle data and the corresponding signal processing data are transferred to a digital signal processing circuit 4.

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