发明申请
- 专利标题： Adjusting the Loudness of an Audio Signal with Perceived Spectral Balance Preservation
- 专利标题（中）： 调整感知光谱平衡保存音频信号的响度
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申请号： US13265693申请日： 2010-04-29
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公开(公告)号： US20120170769A1公开(公告)日： 2012-07-05
- 发明人: David S. McGrath
- 申请人： David S. McGrath
- 申请人地址： US CA San Francisco
- 专利权人： DOLBY LABORATORIES LICENSING CORPORATION
- 当前专利权人： DOLBY LABORATORIES LICENSING CORPORATION
- 当前专利权人地址： US CA San Francisco
- 国际申请： PCT/US10/33024 WO 20100429
- 主分类号： H03G5/00
- IPC分类号： H03G5/00
摘要：
The loudness of an audio signal is adjusted while reducing changes in its perceived spectral balance, using a dynamically-controllable filter having a high-frequency response characteristic and a low-frequency response characteristic, controlled by dynamically-changing information on the desired gain in each of a plurality of frequency bands of the audio signal.
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