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公开(公告)号：US20170171657A1
公开(公告)日：2017-06-15
申请号：US15115525
申请日：2015-09-09
Applicant: Goertek Inc.
Inventor： Song LIU , Linzhang WANG , Bo LI
CPC classification number: H04R1/1041 , H03G5/165 , H04R1/1083 , H04R3/04 , H04R29/001 , H04R2430/03 , H04R2460/15
Abstract: The present invention discloses a method and an apparatus for earphone sound effect compensation and an earphone. The method of the present invention comprises: obtaining monitored signal data in a current wearing state of an earphone user according to a signal collected by a monitoring microphone and an audio signal played by a loudspeaker of the earphone; computing error data of the monitored signal data in the current wearing state relative to standard signal data in a standard wearing state of the earphone; and performing sound effect compensation to the earphone according to the error data. The technical solution of the present invention adopts an adaptive digital signal processing manner, which can dynamically compensate for sound effects in different earphone wearing manners and enable an earphone user to appreciate an audible effect in a standard earphone wearing state.
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2.发明申请公开(公告)号：US20180018954A1
公开(公告)日：2018-01-18
申请号：US15126754
申请日：2015-09-09
Applicant: Goertek Inc.
Inventor： Song LIU , Linzhang WANG , Bo LI
IPC: G10K11/178 , H04R1/10
CPC classification number: G10K11/178 , G10K11/1781 , G10K11/1785 , G10K11/17881 , G10K2210/1081 , G10K2210/3016 , G10K2210/3026 , G10K2210/3027 , G10K2210/3046 , H04R1/1008 , H04R1/1083 , H04R3/005 , H04R2410/07
Abstract: The present method comprises: providing a feedforward microphone outside of each earphone of the active noise-reduction earphones; detecting an amount of external noise by using the feedforward microphone; calculating a weighted energy of a noise signal; and determining whether it is needed to activate the active noise-reduction system based on the weighted energy. When the active noise-reduction control is needed, calculating energy values of two sub-bands, corresponding to the feedforward noise-reduction amount and the feedback noise-reduction amount respectively, in the noise signal, thereby determining the noise-reduction amounts of the feedforward noise reduction system and the feedback noise-reduction system, and controlling the earphone to perform corresponding feedforward noise reduction and feedback noise reduction. Compared with the existing active noise-reduction technologies with a fixed noise reduction, the present invention can optimize the noise-reduction effect.
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