发明名称 |
SOUND EQUIPMENT, VOLUME CORRECTING APPARATUS, AND VOLUME CORRECTING METHOD |
摘要 |
Sound equipment is configured to average an average value of a signal level at each predetermined frequency band of a sound signal at a different averaging time, to weight the average value calculated at a different averaging time by using an individual weighting value, to obtain a representative value based on a weighted average value, to determine a gain of a sound signal based on an obtained representative value, to correct a volume based on the corresponding gain, and to correct a volume based on the gain. The representative value is obtained by selecting the average value at which a gain becomes minimum within each weighted average value. The averaging performs at least a first averaging using the averaging time corresponding to the sound signal that the signal level changes rapidly, and a second averaging using the averaging time longer than the averaging time of the first averaging.
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申请公布号 |
US2012294461(A1) |
申请公布日期 |
2012.11.22 |
申请号 |
US201213469775 |
申请日期 |
2012.05.11 |
申请人 |
MAEDA MASANOBU;MIYAUCHI NOBUTAKA;NAKAMURA FUMITAKE;KUBO MASAHIKO;KAWAMURA NAHOKO;MATSUI MACHIKO;SAITOH HIDETO;KUBOTA HIROYUKI;TAKAOKA MASAYUKI;WASHIO MASANOBU;NISHIOKA YUTAKA;YASUTAKE OSAMU;FUJITSU TEN LIMITED |
发明人 |
MAEDA MASANOBU;MIYAUCHI NOBUTAKA;NAKAMURA FUMITAKE;KUBO MASAHIKO;KAWAMURA NAHOKO;MATSUI MACHIKO;SAITOH HIDETO;KUBOTA HIROYUKI;TAKAOKA MASAYUKI;WASHIO MASANOBU;NISHIOKA YUTAKA;YASUTAKE OSAMU |
分类号 |
H03G3/20 |
主分类号 |
H03G3/20 |
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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