发明名称 |
Audio signal processing device |
摘要 |
An audio signal processing device includes an audio signal control line including controllers for controlling a present value of each of a frequency characteristic, loudness, sound volume, fader of an input audio signal to designated values to be outputted, a zero crossing detector for detecting a timing when an amplitude of the input audio signal crosses a zero level of the audio signal; and a switching controller for switching the present value into the designated value in response to a switching command signal at the timing detected by the zero crossing detector. In this configuration, the zero level crossing timing of the audio signal is detected, and a designated controller makes the control operation at the zero level crossing timing. The click from a speaker can be eliminated. <IMAGE> |
申请公布号 |
EP1003283(A3) |
申请公布日期 |
2003.08.27 |
申请号 |
EP19990122781 |
申请日期 |
1999.11.16 |
申请人 |
PIONEER CORPORATION |
发明人 |
KAGEYAMA, TORU;TAKAMI,YUSUKE;SASAKI, MASARU;INOHANA, HARUYUKI;SAWAKI, MANABU |
分类号 |
H04R3/00;H03G1/00;H03G3/00 |
主分类号 |
H04R3/00 |
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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