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| Title: | 串流式音訊分類於智慧家庭之應用
Streaming audio classification for smart home environments |
| Authors: | 溫景堯
Wen, Jing Yao |
| Contributors: | 廖文宏
Liao, Wen Hung
溫景堯
Wen, Jing Yao |
| Keywords: | 計算式聽覺場景分析
串流式音訊分類
computational auditory scene analysis
streaming audio classification |
| Date: | 2009 |
| Issue Date: | 2011-10-11 16:57:32 (UTC+8) |
| Abstract: | 聽覺與視覺同為人類最重要的感官。計算式聽覺場景分析(Computation Auditory Scene Analysis, CASA)透過聽覺心理學中對於人耳特性與心理感知的關連性，定義了一個可能的方向，讓電腦聽覺更為貼近人類感知。本研究目的在於應用聽覺心理學之原則，以影像處理與圖型辨識技術，設計音訊增益、切割、描述等對應之處理，透過相似度計算方式實現智慧家庭之環境中的即時音訊分類。
本研究分為三部分，第一部分為音訊處理，將環境中的聲音轉換成電腦可處理與強化之訊號；第二部分透過CASA原則設計影像處理，以冀於影像上達成音訊處理之結果，並以影像特徵加以描述音訊事件；第三部分定義影像特徵之距離，以K個最近鄰點(K-Nearest Neighbor, KNN)技術針對智慧家庭環境常見之音訊事件，實現即時辨識與分類。實驗結果顯示本論文所提出的音訊分類方法有著不錯的效果，對八種家庭環境常見的聲音辨識正確率可達80-90%，而在雜訊或其他聲音干擾的情況下，辨識結果也維持在70%左右。
Human receive sounds such as language and music through audition. Therefore, audition and vision are viewed as the two most important aspects of human perception. Computational auditory scene analysis (CASA) defined a possible direction to close the gap between computerized audition and human perception using the correlation between features of ears and mental perception in psychology of hearing. In this research, we develop and integrate methods for real-time streaming audio classification based on the principles of psychology of hearing as well as techniques in pattern recognition.
There are three major parts in this research. The first is audio processing, translating sounds into information that can be enhanced by computers; the second part uses the principles of CASA to design a framework for audio signal description and event detection by means of computer vision and image processing techniques; the third part defines the distance of image feature vectors and uses K-Nearest Neighbor (KNN) classifier to accomplish audio recognition and classification in real-time. Experimental results show that the proposed approach is quite effective, achieving an overall recognition rate of 80-90% for 8 types of audio input. The performance degrades only slightly in the presence of noise and other interferences. |
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| Description: | 碩士
國立政治大學
資訊科學學系
97753031
98 |
| Source URI: | http://thesis.lib.nccu.edu.tw/record/#G0097753031 |
| Data Type: | thesis |
| DOI 連結: | http://dx.doi.org/10.1109/ACPR.2011.6166676 |
| DOI: | 10.1109/ACPR.2011.6166676 |
| Appears in Collections: | [資訊科學系] 學位論文
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