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FFTalgorithmCprogram
- 序执行时要求输入序列的长度N_pre，N_pre 是最初输入序列的长度，任意长度都可以。N是指补零后的序列长度，满足2^L. 然后逐个输入各个元素的实部和虚部，补零部分不必输入。 显示FFT变换的结果。-Order execution when the input sequence length requirements N_pre, N_pre are the initial input sequence length, can be of any length. N refers
FIRtoLattice
- FIR转成Lattice结构[全零点系统转lattice） 根据要求的中心频点，及其相邻“梳齿”的峰值频率可选择。优点：结构简单，处理速度快。 -FIR into Lattice structure [the whole system turn against lattice] in accordance with the requirements of the center frequency, and its adjacent " comb" of the peak
MELP4
- This standard describes the interoperability requirements relating to the conversion of analog voice to 2,400 bits/s digitized voice by a method known as Mixed Excitation Linear Prediction (MELP) and reconversion back to analog voice. An algorith
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- 项目的手工操作形式，实现的系统希望达到的功能描述，使用各功能的角色描述，系统环境描述，系统的性能需求等内容。-Project the form of manual operation, to achieve the system wants to achieve the function described, using the descr iption of the role of each function, the contents of the system environment de
QoS-for-VoIP-Solutions-Guide
- This preface introduces the QoS for Voice Over IP Solutions Guide, which explains quality of service for Voice over IP (QoS for VoIP) and addresses how to deploy end-to-end QoS for voice traffic throughout the components of an internetwork. It al
yuyinxinhaolupoquzao
- 本课程设计的主要目的是在MATLAB环境下，使用窗口设计法设计一个滤波器，并对语音信号进行滤波去噪。开发平台为MATLAB7.0，设计方法为窗口设计法。用麦克风采集一段语音信号，绘制波形并观察其频谱，给定相应技术指标，用凯塞窗设计一个满足指标的FIR滤波器，对该语音信号进行滤波去噪处理，比较滤波前后的波形和频谱并进行分析。在滤波前后语音信号波形的变化中，由于我们录制的语音信号噪声不大，所以观察并不明显，但在频域波形中，我们可以明显的看到设计的滤波器对语音信号进行了滤波处理，将噪声进行了滤除。此次