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    • 8. 发明申请
    • Amplifier apparatus and acoustic system
    • 放大器装置和声学系统
    • US20070160237A1
    • 2007-07-12
    • US10597789
    • 2005-02-04
    • Masayuki HibinoTadashi Morikawa
    • Masayuki HibinoTadashi Morikawa
    • H03F21/00H04B1/00
    • H04H60/04H03G3/3005H04S1/007
    • It is an object of the present invention to provide an amplifier apparatus which can amplify the sound signal at a relatively high quality, and to provide an acoustic system comprising the amplifier apparatus. The amplifier apparatus comprises a first amplifier 13 having a first acoustic gain, and being adapted to amplify an analog sound signal according to the first acoustic gain, and to allow the first acoustic gain to be changed, an analog-to-digital converter 14 for converting the amplified analog sound signal to a digital sound signal, a second amplifier 15 having an second acoustic gain, being adapted to amplify the digital sound signal according to the second acoustic gain, and to allow the second acoustic gain to be changed, and a controller 16 for obtaining a combined acoustic gain from the first and second acoustic gains, and keeping the combined acoustic gain constant by modifying the second acoustic gain in response to a change of the first acoustic gain.
    • 本发明的目的是提供一种能够以较高质量放大声音信号的放大器装置,并提供包括该放大器装置的声学系统。 放大器装置包括具有第一声增益的第一放大器13,并且适于根据第一声增益放大模拟声音信号,并允许改变第一声增益;模数转换器14,用于 将放大的模拟声音信号转换为数字声音信号,具有第二声增益的第二放大器15适于根据第二声增益放大数字声音信号,并允许改变第二声增益,以及 控制器16,用于从第一和第二声增益获得组合的声增益,并且响应于第一声增益的改变,通过修改第二声增益来保持组合的声增益恒定。
    • 10. 发明申请
    • Audio mixer
    • 音频混音器
    • US20070133824A1
    • 2007-06-14
    • US10597900
    • 2005-02-04
    • Masayuki HibinoTadashi Morikawa
    • Masayuki HibinoTadashi Morikawa
    • H03G3/00
    • H04S7/40H04H60/04
    • It is an object of the present invention to provide an audio mixer which can specify and inform whether or not each of the audio signals exceeds a threshold level, without switching to each group. The audio mixer includes: group selecting means 3 for selecting one group from among groups having audio signals allocated thereto; level information display means 4 for displaying level information indicative of signal levels of the audio signals of the one group selected by the group selecting means 3; signal level judging means 6 for judging whether or not each of the audio signals of the groups is a larger than a threshold level; and peak information display means 7 for displaying peak information of each audio signal, the peak information being indicative of the judgment made by the signal level judging means 6.
    • 本发明的目的是提供一种音频混频器,其可以指定并通知每个音频信号是否超过阈值电平,而不切换到每个组。 音频混合器包括:组选择装置3,用于从分配有音频信号的组中选择一组; 电平信息显示装置4,用于显示指示由组选择装置3选择的一组的音频信号的信号电平的电平信息; 信号电平判断装置6,用于判断组中的每个音频信号是否大于阈值电平; 和用于显示每个音频信号的峰值信息的峰值信息显示装置7,峰值信息表示由信号电平判断装置6作出的判断。