鋼琴樂聲仿真頻譜模型研究
發(fā)布時間:2019-03-03 20:08
【摘要】:頻譜模型的樂音仿真是運用聲學理論,由一系列基本函數及其時變幅度乘積的迭加來實現樂器的發(fā)聲。通過對鋼琴琴弦振動和衰減特性的分析以及共鳴箱共振作用的探討,提出了一種新的數字化鋼琴樂音仿真技術,仿真模型由激勵系統和共振系統兩部分組成。系統以琴弦振動方程為基礎,先進行時域上的包絡修飾,以模擬琴弦振動的自然衰減,這樣可以使樂音各音符間銜接和諧;然后在頻域上以頻譜包絡建模濾波器組,實現共振系統的仿真,對音色進行修飾。該方法能更為有效的雕刻聲音,同時較好的表現音色,從而使樂音聽起來更加和諧。
[Abstract]:The musical simulation of the spectrum model is based on the acoustic theory and the superposition of a series of basic functions and their time-varying amplitude products to realize the sound production of musical instruments. Based on the analysis of the vibration and attenuation characteristics of the piano string and the resonance effect of the resonance box, a new digital piano music simulation technique is proposed. The simulation model is composed of two parts: the excitation system and the resonance system. Based on the vibration equation of the string, the system first modifies the envelope in time domain to simulate the natural attenuation of the vibration of the string, so that the harmony between the notes of the music can be made. Then, in the frequency domain, the resonance system is simulated by the spectral envelope modeling filter bank, and the timbre is modified. This method can more effectively sculpt sound, at the same time better performance timbre, thus make the music sound more harmonious.
【作者單位】: 合肥工業(yè)大學計算機與信息學院;
【基金】:國家自然科學基金(51274078) 安徽省重點教研項目(2014zdjy015)資助
【分類號】:TN912.33
本文編號:2434054
[Abstract]:The musical simulation of the spectrum model is based on the acoustic theory and the superposition of a series of basic functions and their time-varying amplitude products to realize the sound production of musical instruments. Based on the analysis of the vibration and attenuation characteristics of the piano string and the resonance effect of the resonance box, a new digital piano music simulation technique is proposed. The simulation model is composed of two parts: the excitation system and the resonance system. Based on the vibration equation of the string, the system first modifies the envelope in time domain to simulate the natural attenuation of the vibration of the string, so that the harmony between the notes of the music can be made. Then, in the frequency domain, the resonance system is simulated by the spectral envelope modeling filter bank, and the timbre is modified. This method can more effectively sculpt sound, at the same time better performance timbre, thus make the music sound more harmonious.
【作者單位】: 合肥工業(yè)大學計算機與信息學院;
【基金】:國家自然科學基金(51274078) 安徽省重點教研項目(2014zdjy015)資助
【分類號】:TN912.33
【相似文獻】
相關期刊論文 前6條
1 李燁;楊家瑋;梁彥霞;;基于美爾卷曲的TELPC頻譜包絡估計算法[J];華南理工大學學報(自然科學版);2011年02期
2 邵艷秋;韓紀慶;王卓然;劉挺;;韻律參數和頻譜包絡修改相結合的情感語音合成技術研究[J];信號處理;2007年04期
3 李波,王成友,楊聰,蔡宣平,張爾揚;基于語音頻譜包絡抽取的MFCC算法[J];國防科技大學學報;2004年04期
4 張昆帆;裴喜龍;黨同心;張雅歌;;基于頻譜包絡自相關的ISAR轉角估計方法[J];系統工程與電子技術;2014年08期
5 余旺盛;侯志強;王朝英;;頻譜包絡濾波器及其應用[J];西安交通大學學報;2010年08期
6 ;[J];;年期
相關碩士學位論文 前5條
1 林勝義;語音通信系統的頻帶擴展技術研究[D];廣東技術師范學院;2016年
2 劉利娟;聲音轉換的神經網絡建模方法研究[D];中國科學技術大學;2015年
3 萬茂文;基于DSP語音頻譜包絡提取方法的研究及實現[D];中南大學;2008年
4 唐琦;輸出射頻頻譜測試方法優(yōu)化的研究和實現[D];上海交通大學;2008年
5 白海釧;基于灰色模型和支持向量機的音頻頻帶擴展方法[D];北京工業(yè)大學;2014年
,本文編號:2434054
本文鏈接:http://sikaile.net/kejilunwen/xinxigongchenglunwen/2434054.html