发明名称 |
Dynamic volume control and multi-spatial processing protection |
摘要 |
A disclosed system and method dynamically controls the perceived volume of a stereo audio program including left and right channel signals. The system comprises: a dynamic volume control configured and arranged so as to maintain a perceived constant volume level of the stereo audio program; and an excessive spatial processing protection processor configured and arranged for controlling the level of a difference signal, created as a function of the right channel signal subtracted from the left channel signal (L−R), relative to the level of a sum signal, created as a function of the right channel signal plus the left channel signal; wherein the excessive spatial processing protection processor processes the audio signals so as to control the difference (L−R) signal relative to the sum (L+R) signal. A system and method are also provided for dynamically controlling the perceived volume of a stereo audio program including left and right channel signals, comprising: a dynamic volume control configured and arranged so as to maintain a perceived constant volume level of the stereo audio program; and a program change detector configured and arranged to provide a program change signal indicating that the volume of the left and right channel signals has dropped below a threshold level for at least a threshold time period so as to anticipate a possible change in the sound level of the left and right channel signals; wherein the dynamic volume control is responsive to the program change signal.
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申请公布号 |
US8315411(B2) |
申请公布日期 |
2012.11.20 |
申请号 |
US20090619655 |
申请日期 |
2009.11.16 |
申请人 |
HANNA CHRISTOPHER M.;BENULIS GREGORY;THAT CORPORATION |
发明人 |
HANNA CHRISTOPHER M.;BENULIS GREGORY |
分类号 |
H03G3/00;H03G7/00;H04B15/00 |
主分类号 |
H03G3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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