Sound reproducing device
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United States of America Patent
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Oct 1, 2019
Grant Date -
Dec 28, 2017
app pub date -
Sep 15, 2015
filing date -
Dec 26, 2014
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Abstract
A sound-reproducing device has a DSP and a μCom performing a predetermined calculation to an input signal, and an AMP amplifying the calculated signal and outputting the signal to a speaker unit. The DSP and the μCom cuts a part of a reverse characteristic of a frequency characteristic of the speaker unit in a low frequency, and superimposes the reverse characteristic on the input signal. The sound-reproducing device can overcome a shortage of low sound during reproduction of low to medium volume in the speaker unit having a relatively small diameter, and can keep reproduction sound quality without loss of the reproduction sound quality during reproduction of large volume.
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