Method and system for testing noise reduction effect of ENC through electroacoustic test equipment

The invention provides a method and system for testing the noise reduction effect of an ENC through electroacoustic testing equipment. The scheme comprises the following steps: acquiring a database of all human voices, and generating standard artificial mouth data and earphone artificial mouth data...

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Hauptverfasser: NIU CONG, TENG ZEHUI, XIE YANGFEI, LIU JIANHUA
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a method and system for testing the noise reduction effect of an ENC through electroacoustic testing equipment. The scheme comprises the following steps: acquiring a database of all human voices, and generating standard artificial mouth data and earphone artificial mouth data after extracting and playing a single human voice; acquiring all environment databases, extracting front-section noise and rear-section noise, and fusing the front-section noise and the rear-section noise to generate a standard noise signal and an earphone noise signal; obtaining an earphone noise signal, and extracting a first bat fluctuation, a second bat fluctuation and an environment replacement moment according to a noise time sequence; carrying out online wave recording proportion adjustment and noise prediction at future moments, and generating a first wave recording proportion and a wave recording difference value at the next ten o'clock; acquiring the single human voice, the front-section noise and the rea