%0 Journal Article
%T An MP-based Harmonic and Individual Lines Sinusoidal Modeling in Parametric Audio Coding<br>一种基于匹配跟踪的谐波和独立谱线正弦模型实现方案
%A Wang Jing
%A Zhao Sheng-hui
%A Kuang Jing-ming
%A <br>王晶
%A 赵胜辉
%A 匡镜明
%J 电子与信息学报
%D 2006
%I 
%X This paper presents an MP-based harmonic and individual lines sinusoidal modeling used in parametric audio coding. The input audio signal can be represented by harmonic plus individual lines and the model parameters (amplitudes, frequencies and phases) are extracted by MP (Matching Pursuit) algorithm which can lower computational complexity. The fundamental frequency is obtained by subharmonic summation. Harmonic frequency points are decided by MP exactly and are curve-fitted by quadric polynomial. The corresponding harmonic amplitudes are simulated by LPC spectrum envelope. In the decoder, audio signal is reconstructed with IFFT and OLA. The experimental results show that this sinusoidal modeling can represent the stationary parts of the audio signal very well.
%K Audio code
%K Sinusoidal model
%K Harmonic lines
%K Matching Pursuit (MP) algorithm
%K Subharmonic summation<br>音频编码
%K 正弦模型
%K 谐波谱线
%K MP算法
%K 谐波积谱法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=79071C99F8E88FAB&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=7AD2D1CE7CD34BB7&eid=E947FD4445DA7BA0&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=7