发明名称 |
LOUDNESS MAXIMIZATION WITH CONSTRAINED LOUDSPEAKER EXCURSION |
摘要 |
<p>An original loudness level of an audio signal is maintained for a mobile device while maintaining sound quality as good as possible and protecting the loudspeaker used in the mobile device. The loudness of an audio (e.g., speech) signal may be maximized while controlling the excursion of the diaphragm of the loudspeaker (in a mobile device) to stay within the allowed range. In an implementation, the peak excursion is predicted (e.g., estimated) using the input signal and an excursion transfer function. The signal may then be modified to limit the excursion and to maximize loudness.</p> |
申请公布号 |
EP2664161(A1) |
申请公布日期 |
2013.11.20 |
申请号 |
EP20120703907 |
申请日期 |
2012.01.09 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
RYU, SANG-UK;SHIN, JONGWON;SILVERSTEIN, ROY B.;SCHEVCIW, ANDRE GUSTAVO P.;XIANG, PEI |
分类号 |
H04R3/02;H04R3/00 |
主分类号 |
H04R3/02 |
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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