基于聲卡的音頻信號分析儀的設(shè)計-展示頁
2025-07-06 20:38本頁面
【正文】 號,在此基礎(chǔ)上可以進行各種分析。打印前，不要忘記把上面“Abstract”這一行后加一空行第1章 緒論 課題背景音頻信號分析儀是一種用來對被測信號進行頻率、頻譜及波形分析的重要測量工具。關(guān)鍵詞 聲卡 數(shù)據(jù)采集 信號分析 LabVIEWA general audio classifier based on human perception motivated modelAbstractThe audio channel conveys rich clues for contentbased multimedia audio analysis includes, besides widely known speech recognition and speaker identification problems, speech/music segmentation, speaker gender detection, special effect recognition such as gun shots or car pursuit, and so on. All these problems can be considered as an audio classification problem which needs to generate a label from low audio signal analysis. While most audio analysis techniques in the literature are problem specific, we propose in this paper a general framework for audio classification. The proposed technique uses a perceptually motivated model of the human perception of audio classes in the sense that it makes a judicious use of certain psychophysical results and relies on a neural network for classification. In order to assess the effectiveness of the proposed approach, large experiments on several audio classification problems have been carried out, including speech/music discrimination in Radio/TV programs, gender recognition on a subset of the switchboard database, highlights detection in sports videos, and musical genre recognition. The classification accuracies of the proposed technique are parable to those obtained by problem specific techniques while offering the basis of a generalapproach for audio classification.Keywords Audio classification . Gender identification . Music genre recognition .Highlights detection . Perceptually motivated features . Contentbased audio indexing .Piecewise Gaussian Modelling不要刪除行尾的分節(jié)符，此行不會被打印目錄摘要 IAbstract II第1章 緒論 3 課題背景 3 3 聲卡的工作原理 第2章軟件設(shè)計與實現(xiàn) 3 程序流程圖 3 聲卡的性能參數(shù)及數(shù)據(jù)采集 軟件設(shè)計 第3章系統(tǒng)硬件電路設(shè)計 3 系統(tǒng)硬件基本組成部分 3 聲卡的要求 單元電路設(shè)計 系統(tǒng)分析計算 第4章系統(tǒng)測試與結(jié)果分析 測試儀器 指標(biāo)測試 系統(tǒng)誤差分析結(jié)論 3致謝 3參考文獻 3附錄 3千萬不要刪除行尾的分節(jié)符，此行不會被打印。an基于聲卡的音頻信號分析儀的設(shè)計摘要本文主要介紹如何用普通的計
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