公开(公告)号：US5930370A

公开(公告)日：1999-07-27

申请号：US707101

申请日：1996-09-03

申请人： Jerome E. Ruzicka

发明人： Jerome E. Ruzicka

IPC分类号： H04R5/04 ,  H04S3/00 ,  H04R5/00

CPC分类号： H04S3/00 ,  H04R5/04 ,  H04R2205/024 ,  H04R2205/026 ,  H04R2420/07

摘要： An apparatus for realistically reproducing sound, particularly for sound based on a stereophonic signal having dialog and effects and associated with an accompanying video image. The apparatus includes a front speaker located in proximity to the video image for providing acoustic output based upon a summation signal of the component left and right (L+R) channels of the audio signal. A rear speaker located to the rear of the viewing area provides acoustic output based upon a difference signal, (L-R) or (R-L), between the left and right channels. Left and right speakers located to the respective left and right sides of the viewing area. The left and right channels speakers reproduce in one embodiment the respective left and right channels of the audio signal and in a second embodiment reproduce a difference signal, (L-.beta.R) or (R-.beta.L), where .beta. is a gain which may vary or may be a value fixed between zero and unity. Output to the left and right speakers is band limited to substantially filter out frequency components below a predetermined threshold. A bass speaker may also be provided to output the low frequency components of a (L+R) summation signal. The (L+R) summation signal input to the front speaker assists in localizing dialog to the video image. The (L-.beta.R) or (R-.beta.L) difference signal substantially removes dialog sound so that the side and rear speaker output primarily comprises sonic ambience and surround sound effects. Band limiting the left and right speakers further assists in localizing dialog to the video image. Alternatively, in yet another embodiment, a monophonic signal may be applied to at least one embodiment of the system to enable production of a spatially enhanced surround sound effect.

摘要翻译： 一种用于实际地再现声音的装置，特别是基于具有对话和效果并与伴随视频图像相关联的立体声信号的声音。 该装置包括位于视频图像附近的前置扬声器，用于基于音频信号的分量左和右（L + R）声道的求和信号提供声输出。 位于观看区域后部的后置扬声器基于左右声道之间的差信号（L-R）或（R-L）提供声输出。 左右扬声器位于观看区域的左侧和右侧。 左声道和右声道扬声器在一个实施例中再现音频信号的相应左和右声道，并且在第二实施例中再现差分信号（L-βR）或（R-βL），其中β是增益， 可以变化，也可以是固定在零和一致之间的值。 向左和右扬声器的输出被限制频带以基本上滤除低于预定阈值的频率分量。 也可以提供低音扬声器以输出（L + R）求和信号的低频分量。 输入到前置扬声器的（L + R）求和信号有助于对视频图像进行本地化。 （L-βR）或（R-βL）差异信号基本上消除对话声音，使得侧和后扬声器输出主要包括声音环境和环绕声效果。 限制左右扬声器的频段进一步有助于将对话框本地化到视频图像。 或者，在另一个实施例中，单声道信号可以应用于系统的至少一个实施例，以使得能够产生空间增强的环绕声效果。

公开(公告)号：US06118876A

公开(公告)日：2000-09-12

申请号：US44620

申请日：1998-03-19

申请人： Jerome E. Ruzicka

发明人： Jerome E. Ruzicka

IPC分类号： H04R5/04 ,  H04S3/00 ,  H04R5/00

CPC分类号： H04S3/00 ,  H04R5/04 ,  H04R2205/024 ,  H04R2205/026 ,  H04R2420/07

摘要： An apparatus for realistically reproducing sound, particularly for sound based on a stereophonic signal having dialog and effects and associated with an accompanying video image. The apparatus includes a front speaker located in proximity to the video image for providing acoustic output based upon a summation signal of the component left and right (L+R) channels of the audio signal. A rear speaker located to the rear of the viewing area provides acoustic output based upon a difference signal, (L-R) or (R-L), between the left and right channels. The left and right side speakers are located to the respective left and right sides of the viewing area. The left side speaker provides two acoustic outputs in accordance with a band limited left channel signal and a band limited difference signal. The right side speaker provides two acoustic outputs in accordance with a band limited right channel signal and a band limited difference signal. Band limiting substantially filters out frequency components below a predetermined threshold. A bass speaker may also be provided to output the low frequency components of a (L+R) summation signal. The (L+R) summation signal input to the front speaker assists in localizing dialog to the video image.

摘要翻译： 一种用于实际地再现声音的装置，特别是基于具有对话和效果并与伴随视频图像相关联的立体声信号的声音。 该装置包括位于视频图像附近的前置扬声器，用于基于音频信号的分量左和右（L + R）声道的求和信号提供声输出。 位于观看区域后部的后置扬声器基于左右声道之间的差信号（L-R）或（R-L）提供声输出。 左右侧扬声器位于观看区域的左侧和右侧。 左侧扬声器根据频带限制的左声道信号和带限差分信号提供两个声输出。 右侧扬声器根据带限右声道信号和带限差分信号提供两声输出。 频带限制基本上滤除低于预定阈值的频率分量。 也可以提供低音扬声器以输出（L + R）求和信号的低频分量。 输入到前置扬声器的（L + R）求和信号有助于对视频图像进行本地化。

公开(公告)号：US5708719A

公开(公告)日：1998-01-13

申请号：US525364

申请日：1995-09-07

申请人： Hal P. Greenberger ,  William F. Clack ,  Jerome E. Ruzicka

发明人： Hal P. Greenberger ,  William F. Clack ,  Jerome E. Ruzicka

IPC分类号： H04R5/04 ,  H04S3/00 ,  H04R5/00

CPC分类号： H04S3/00 ,  H04R5/04 ,  H04R2209/041

摘要： An apparatus for realistically reproducing sound, particularly for sound based on a stereophonic signal having dialog and effects and associated with an accompanying video image. The apparatus includes a front speaker located in proximity to the video image for providing acoustic output based upon a summation signal of the component left and right (L+R) channels of the audio signal. A rear speaker located to the rear of the viewing area provides acoustic output based upon a difference signal, (L-R) or (R-L), between the left and right channels. Left and right speakers located to the respective left and right sides of the viewing area output audio based upon the respective left or right channels. The left and right channels speakers reproduce in one embodiment the respective left and right channels of the audio signal and in a second embodiment reproduce a difference signal, (L-R) or (R-L). Output to the left and right speakers is band limited to substantially filter out frequency components below a predetermined threshold. A bass speaker may also be provided to output the low frequency components of a (L+R) summation signal. The (L+R) summation signal input assists in localizing dialog to the front speaker, in proximity to the video image. The (L-R) or (R-L) difference signal substantially removes dialog sound so that the side and rear speaker output primarily comprises sonic ambience and surround sound effects. Band limiting the left and right speakers further assists in localizing dialog to the video image.

摘要翻译： 一种用于实际地再现声音的装置，特别是基于具有对话和效果并与伴随视频图像相关联的立体声信号的声音。 该装置包括位于视频图像附近的前置扬声器，用于基于音频信号的分量左和右（L + R）声道的求和信号提供声输出。 位于观看区域后部的后置扬声器基于左右声道之间的差信号（L-R）或（R-L）提供声输出。 位于观看区域的相应左侧和右侧的左右扬声器基于相应的左声道或右声道输出音频。 左声道和右声道扬声器在一个实施例中再现音频信号的相应左和右声道，并且在第二实施例中再现差分信号（L-R）或（R-L）。 向左和右扬声器的输出被限制频带以基本上滤除低于预定阈值的频率分量。 也可以提供低音扬声器以输出（L + R）求和信号的低频分量。 （L + R）求和信号输入有助于在视频图像附近对前置扬声器进行本地化对话。 （L-R）或（R-L）差分信号基本上消除对话声音，使得侧和后扬声器输出主要包括声音环境和环绕声效果。 限制左右扬声器的频段进一步有助于将对话框本地化到视频图像。