计算机工程与应用 ›› 2012, Vol. 48 ›› Issue (4): 125-127.

• 数据库、信号与信息处理 • 上一篇    下一篇

应用子带分解的特殊音效镶边的设计与实现

吉晓东1，陈建平2，刘维富2，周婧洁1   

  1. 1.南通大学 电子信息学院，江苏 南通 226019
    2.南通大学 计算机科学与技术学院，江苏 南通 226019
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-02-01 发布日期:2012-04-05

New design and implementation for digital audio effect of flanging based on subband decomposition

JI Xiaodong1, CHEN Jianping2, LIU Weifu2, ZHOU Jingjie1   

  1. 1.School of Electronic Information, Nantong University, Nantong, Jiangsu 226019, China
    2.School of Computer Science and Technology, Nantong University, Nantong, Jiangsu 226019, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-02-01 Published:2012-04-05

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摘要： 针对传统的调制镶边处理仅从全时域上对原始声音信号进行延时叠加的问题，利用子带分解的思想，研究如何有效地利用音频信号的频域特点，提出了一种新的基于子带分解的时、频镶边处理方案。理论分析和实验结果表明，新的镶边处理方案不仅能够有效利用人耳的听觉特性，还能够独立、灵活地选择和调节不同音域信号的调制镶边参数，实现了一种灵活、高效的镶边特殊音效处理。

关键词: 数字音频处理, 特殊音效, 镶边, 子带分解

Abstract: The traditional method for flanging processing focuses only on the time domain. This paper studies how to utilize the features of audio signals in the frequency domain, and proposes a subband decomposition based time-frequency processing scheme for the generation of flanging effect. Theoretical analysis and experimental results show that the new time-frequency flanging processing scheme well adapts to the human hearing sense. The flanging modulation parameters can be adjusted flexibly and independently for different frequency ranges, which realizes a flexible and efficient flanging effect processing.

Key words: digital audio processing, audio effect, flanging, subband decomposition

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