This dissertation explores a unique body of historical writings published in the native-language newspapers of the Hawaiian kingdom during the 19th century and examines the incorporation of these materials into contemporary knowledge. Scholars of the 20th century have translated a fraction of the historical material, reorganized its contents and published those portions as reference texts on Hawaiian history, culture and ethnography. These English presentations, along with other translated texts have become an English-language canon of Hawaiian reference material that is widely used today. The canon of translated texts is problematic in that it alters the works of the original authors, recasting important auto-representational writings by Hawaiians of the 19th century into a modern Western framework. General reliance upon these translated texts has fostered a level of authority forDevelopment of informatization allows people to communicate at any moment and everywhere and widespread use of various communication equipments and technologies greatly facilitates life and enhances work efficiency. However, social development results in a severe issue, noise. In a noisy environment, definition and intelligibility of communication voice are severely compromised and when noise is high to a certain degree, communication can not proceed, and people's audition and physical and mental health will be injured.
In view of communication under very noisy background, existing art implements noise reduction through the following schemes: on the one hand, acoustics signal processing technology is applied at the sending end of communication earphone to enhance Signal-to-Noise Ratio (SNR) of voice signal picked up by a microphone, allowing remote user to hear speech by the