摘要
随着嵌入式设备的应用越来越广泛,语音信号处理系统在嵌入式平台中的应用也越来越重要。谱减法作为一种经典的语音增强算法,以其可实时应用的特点,在语音信号处理中为保证信号的质量提供了一种很好的解决方案。噪声估计在传统方法基础上采用最小值跟踪的噪声算法,用C++语言编程实现,并将算法移植到ARM开发板,算法有效地减小了噪声,为嵌入式语音信号的处理及应用提供了更好的可靠性。
The application of speech signal processing system on embeded platform is more important with wide use of embeded device.Spectral subtraction,as useful one of classic speech enhancement algorithms and for its real-time realizing,has offered a pretty good solution to signal quality assurance during speech signal process.In this paper,minimum tracking algorithm programmed in C＋＋ is adopted to estimate noise value.The algorithm is effective in reducing noise,after it has been transplanted into ARM development platform to provide better reliability for embedded speech signal processing and application.
出处
《电脑开发与应用》
2011年第6期63-64,共2页
Computer Development & Applications
关键词
谱减法
嵌入式系统
ARM
spectral enhancement
embedded system
ARM
