搜索资源列表
pitchwatch
- function pitchwatch(x,Ts) Plot the pitch keys. pitchwatch(x,[Ts]) :: Syntax The array x is the input signal and Ts is the (optional) sampling period. Example on use: [x,Fs] = wavread( Hum.wav ) pitchwatch(x,1/Fs) :: Inf
The-FIR-filter-design
- (附带有文档,文档中有方案,有程序有结果,设计完后对一段语音进行处理)给定滤波器的规一化性能指标(参考指标,实际中依据每个同学所叠加噪声情况而定)通带截止频率wp=0.25*pi。 采用窗函数法设计低通、高通、带通型FIR滤波器,对叠加噪声前后的语音信号进行滤波处理,绘出滤波器的频域响应,绘出滤波后信号的时域波形和频谱,并对滤波前后的信号进行对比,分析信号的变化;在相同的性能指标下比较各方法的滤波效果,并从理论上进行分析-(With the document, document, program
提取语音信号基频
- 用自相关函数提取语音信号基频,提取音频文件的基频等高线(Use the autocorrelation function on segments of the signal (windowsize: 100ms) and compute the fundamental frequency. Use a max_time_lag of 100ms in the autocorrelation function and a window shift of 25ms. Create a fundame
audio_tezheng
- 语音信号的时域、频域与倒谱域分析。 1.分析一帧清音和浊音的自相关函数和倒谱系数 2.用Matlab画出该段语音的时域波形、短时能量、短时平均幅度、短时过零率、短时过电平率 3.选择一帧无声、清音和浊音的语音,用Matlab画出它们的对数幅度谱(Time domain, frequency domain and cepstrum domain analysis of speech signals. 1. Analyze the autocorrelation function and c