搜索资源列表
FIRDsgn
- 有限脉冲响应过滤器。This program designs a Finite Impulse Response (FIR) filter. The window-based method is used to obtain a low-pass, high-pass, band-pass or band-stop FIR filter-finite impulse response filters. This program designs a Finite Impulse Response
readspeech
- 一个用C语言程序实现读写语音文件的语音信号低通滤波例子-A C language program used to read and write audio files of voice signal low-pass filter example
ditong
- 基于MATLAB设计的FIR低通滤波器，并对语音进行了滤波处理-MATLAB-based design of FIR low-pass filter, and a voice filter processing
low_pass
- 设计一个低通滤波系统，任意输入三个频率使输入的信号中留下频率最低的 一个分量。-Designed a low-pass filter system, indiscriminate importation of the three input signal frequency so that left one of the lowest frequency component.
02
- irr语音滤波内含高通、低通、带同滤波器-irr includes high-pass filtering of voice, low-pass, with the same filter
voice
- 本程序为一个用matlab实现的语音滤波程序，能计算并显示语音信号的幅频特性，巴特沃斯低通滤波器幅度和相位响应，引入噪声后的幅频特性，以及滤波后的DFT幅频特性。本程序附有语音文件以供试验。-This program is an implementation using matlab voice filtering procedures, can calculate and display the speech signal amplitude-frequency characteristics
FFT_lowpass
- 采用FFT和低通滤波器的两种语音除噪算法比较，MATLAB编程，附效果图-Using FFT and low pass filter audio noise canceling algorithm for the two compare, MATLAB programming, with a results map
chengxu
- 给音乐添加噪声再通过低通滤波器滤掉噪声，性能改善过后能明显看到效果。-Add noise to the music and through a low pass filter filters noise, performance improvement can be evident after the effects.
FIR-low-pass-filter
- FIR低通滤波器（语音低通滤波器设计低码） 有音乐效果-FIR low-pass filter (low pass filter design low voice code) has sound effects
MATLAB-SINGAL-PROCESSING
- 对采集的语音信号进行滤波，谱分析，并进行前后时域和频域波形比较。可选择IIR和FIR滤波器进行高通，低通和带通滤波。-To obtain the voice signal filtering, spectrum analysis, and the time domain and frequency domain waveform and compared. Can choose IIR and FIR filter for qualcomm, low pass and bandpass filt
ditonglvbo
- 这是一个对语音信号(0.3kHz~3.4kHz)进行低通滤波的C语言程序。低通滤波的截止频率为800Hz，滤波器采用19点的有限冲击响应FIR滤波。-This is a speech signal (0.3 kHz to 3.4 kHz) to low pass filtering of C language program. Low pass filter cutoff frequency for 800 Hz, filter adopting the shock response limit
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
ditonglvboqixiaozao
- 低通滤波器，可以消去高频噪音。通过先增加一段随机噪音，然后又消去噪音来实现-Low-pass filter can eliminate the high frequency noise. By adding a random noise, and then eliminate noise
bditong
- 用matlab实现巴特沃斯低通滤波器的M文件。本例读取电脑自带的XP开机声音，加上高频噪声，然后滤波看效果。-Butterworth low-pass filter using matlab M-file. This case, read the computer comes with XP start-up sound, coupled with high-frequency noise, and then filter to see the effect.
bgaotong
- 用matlab实现巴特沃斯高通滤波器的M文件。本例读取电脑自带的XP开机声音，加上低频噪声，然后滤波看效果。-With Matlab M-file Butterworth high-pass filter. This case, read the computer comes with XP start-up sound, coupled with the low-frequency noise, and then filtering to see results.
pass
- 简单语音处理，包括高通、低通、带通以及带阻滤波器的滤波。对语音处理有基本的认识-Simple speech processing, including high-pass, low-pass, band-pass and band-stop filter filtering. For a basic understanding of speech processing
IIR_ditong
- 简单的语音信号去噪声，通过在录制的声音中添加噪声，然后通过低通滤波器去除噪声-IIR low pass filter
FIR-filter
- 实现用FIR低通滤线性相位滤波器滤除声音中的噪声-The FIR low-pass filtered linear phase filter is used to filter the noise in the sound
chenxu
- （1）录制一段语音信号，完成对信号的采样，画出信号的时域波形和频谱图，确定信号的频谱范围； （2）给信号叠加噪声（噪声类型分为如下几种：a白噪声；b单频噪色（正弦干扰）；c多频噪声（多正弦干扰）；d其它干扰。），画出受噪声干扰的信号时域波形和频谱图； （3）采用窗函数法设计FIR低通滤波器，画出滤波器的频响特性图； （4）用所设计的滤波器对受噪声影响的信号进行滤波，画出滤波后语音信号的时域波形图和频谱图； （5）对滤波前后的信号进行对比，分析信号的变化；回放语音信号，并与原始语音信号对比