Description: 巴特沃思和契比雪夫滤波器，有wav文件以及输出的wav文件，使用带通滤波器，保留了300-3300Hz的音频，可以广泛使用在音频滤波方面-Butterworth and Chebyshev filter, wav files and output wav file, the use of band-pass filters, retained the 300-3300Hz audio can be widely used in audio filtering Platform: |
Size: 119808 |
Author:zz |
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Description: MPEG MDCT的一些文章
A design on the vector-processor of MDCT-IMDCT algorithm for digital audio；A fast algorithm of integer MDCT for lossless audio coding-MPEG MDCT articles A design on the vector-processor of MDCT-IMDCT algorithm for digital audio A fast algorithm of integer MDCT for lossless audio coding Platform: |
Size: 5156864 |
Author:dingying |
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Description: 先采集一单声道音频信号（.wav）并用WAVREAD文件采样读取，并对其进行频谱分析。分别用窗函数法和双线性变换法设计低通、高通、带通三种FIR滤波器和IIR滤波器。用M文件使信号通过滤波器并对输出信号进行时域和频域分析。-First acquisition of a mono audio signal (. Wav) files with sampling WAVREAD read, and their spectral analysis. Window function, respectively and the design of bilinear transform low-pass, high pass, band-pass FIR filters and IIR three filters. M document with the signal through the filter and the output signal in time domain and frequency domain analysis. Platform: |
Size: 197632 |
Author:宋立泉 |
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Description: 实时滤波器，具有精美界面，可以开发自己的应用功能。-You can use 4 types of filters:
- Butterworth
- Chebyshev 1
- Chebyshev 2
- Elliptic
You can use them as:
- Lowpass
- Highpass
- Bandpass
- Stopband
Showing theirs features in frequency, phase and the z plane. After the desing phase you can apply the designed filter in real time to incoming audio signal from the microphone.
Platform: |
Size: 305152 |
Author: 反对撒 |
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Description: 巴特沃斯滤波器的MatLab代码实现，可以对一段音频进行滤波，与其他滤波器进行对比-Butterworth filter of the MatLab code for implementation can be some audio filtering, comparison with other filters Platform: |
Size: 1024 |
Author:zhanghailong |
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Description: 1.录制一段自己的语音信号,对录制的信号进行采样 画出采样后语音信号的时域波形和频谱图 给定滤波器的性能指标,采matlab设计数字滤波器,并画出滤波器的频率响应 然后用自己设计的滤波器对采集的信号进行滤波,画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 回放语音信号。2.-1. Recorded his voice for some signal, the signal is sampled on the record draw sampled speech signal time-domain waveform and frequency spectrum performance for a given filter, mining matlab digital filter design, and draw the filter frequency response then use their own filters designed to filter the collected signals, to draw the filtered time domain waveform and frequency spectrum, and comparing the signal before and after filtering, analysis of signal changes playback of audio signals. 2. Platform: |
Size: 51200 |
Author:liujia |
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Description: A filter is a system which modifies some special frequencies reletive to the others. As a result i s applicable in some applications when it is necessary to have different gains & phase shifts at different frequencies to perform specific filtering tasks. For example in an audio file which is corrupted by noise it is convinient to use a filter to cancel those frequencies which are affected by noise and consequently having a better sound quality. During this MATLAB experiment we are trying to cancel the noise frequencies out of the original signal frequencies to get the original signal. Due to do this task, different types of filters such as FIR and IIR filters are used. In FIR filters, we use two type of common windows such as fixed window like Hanning and adjustable window like Kaiser. In IIR filters four different types of filter such as Butterworth, Chebyshev I, Chebyshev II, Elliptic are used.-A filter is a system which modifies some special frequencies reletive to the others. As a result it is applicable in some applications when it is necessary to have different gains & phase shifts at different frequencies to perform specific filtering tasks. For example in an audio file which is corrupted by noise it is convinient to use a filter to cancel those frequencies which are affected by noise and consequently having a better sound quality. During this MATLAB experiment we are trying to cancel the noise frequencies out of the original signal frequencies to get the original signal. Due to do this task, different types of filters such as FIR and IIR filters are used. In FIR filters, we use two type of common windows such as fixed window like Hanning and adjustable window like Kaiser. In IIR filters four different types of filter such as Butterworth, Chebyshev I, Chebyshev II, Elliptic are used. Platform: |
Size: 714752 |
Author:Paria Shahabi |
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Description: 此功能会产生这是一个“搁置”的设计为一个单一的IIR双二阶系数。 wierldy不够，这种过滤器的类型是不标准的Matlab的滤波器设计工具箱的一部分。这些是常用的过滤器是创建一个图形均衡器的音频信号处理。-This function will generate the coefficients for a single IIR biquad that is a "shelving" design. Wierldy enough, this filter type is not part of the standard Matlab filter design toolbox. These filters are commonly used is audio signal processing to create a graphic equalizer.
Platform: |
Size: 1024 |
Author:张成 |
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Description: This a one-credit lab supplementing the three-credit junior-level DSP course 332:346 Digital Signal Processing . It consists of four hardware labs using the Texas Instruments TMS320C6713 DSP Starter Kit, and two MATLAB software labs.
Lab begins in the week of February 3, 2014 for group A, and the week of February 10, 2014 for group B.
Lab Schedule and Contents
Lab-0 : Lab Guidelines - supplementary C-files
Lab-1 : Introduction to TMS320C6713 and Code Composer Studio
Lab-2 : Wavetable Generators, AM/FM Modulation
Lab-3 : Delays, FIR Filtering, Circular Buffers
Lab-4 : FIR Filtering Experiments
Lab-5 : Digital Audio Effects
Lab-6 : IIR Filtering Experiments
Complete Lab Manual
Spring-2011 Labs
Spring-2012 Labs
Spring-2013 Labs
-This is a one-credit lab supplementing the three-credit junior-level DSP course 332:346 Digital Signal Processing . It consists of four hardware labs using the Texas Instruments TMS320C6713 DSP Starter Kit, and two MATLAB software labs.
Lab begins in the week of February 3, 2014 for group A, and the week of February 10, 2014 for group B.
Lab Schedule and Contents
Lab-0 : Lab Guidelines - supplementary C-files
Lab-1 : Introduction to TMS320C6713 and Code Composer Studio
Lab-2 : Wavetable Generators, AM/FM Modulation
Lab-3 : Delays, FIR Filtering, Circular Buffers
Lab-4 : FIR Filtering Experiments
Lab-5 : Digital Audio Effects
Lab-6 : IIR Filtering Experiments
Complete Lab Manual
Spring-2011 Labs
Spring-2012 Labs
Spring-2013 Labs
Platform: |
Size: 660480 |
Author:MUHAMMAD SHAKIL |
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Description: 以MATLAB软件为工具，在GUI图形用户界面下针对不同特点的语音信号进行八种不同模式的滤波处理的语音信号处理系统，涉及基于巴特沃思滤波器的IIR滤波器和汉明窗设计的FIR滤波器，能够实现语音文件的打开及自定义路径的存储功能，同时可以实现语音信号加噪和音频倒放功能。-The source code, by means of MATLAB, under the Graphical User Interface, achieves a kind of speech signal processing system with eight different modes of speech signal filters working according to different characteristics of speech signal. The system involves IIR filter based on Butterworth analog filter and FIR filter based on Hamming Window, is able to open and save audio files in the user-defined place and realizes functions of noise addition and audio back-play. Platform: |
Size: 19456 |
Author:李小 |
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Description: Signal Processing is the process of measuring, manipulating or analysing information.
Signals of interest include biomedical data, audio, still or moving images, radar, and
even DNA. Filtering techniques can be crucial in revealing and interpreting
information present in a signal. ELEC3104 Digital Signal Processing is an
introductory signal processing course which takes students through the steps
necessary to design and implement filters for a range of signals. Platform: |
Size: 78848 |
Author:Khan17
|
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Description: 男女变声器，语言信号处理，录音，matlab，各种滤波器，有预处理，自定义时长录音并保存，自主选择文件，自主制作界面(Male and female voice changer, speech signal processing, audio, MATLAB, various filters, pretreatment, long recording and save custom, choose file, independent production interface) Platform: |
Size: 4990976 |
Author:文豪
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Description: 在matlab中设计不同阶数的FIR滤波器,并对音频文件进行读入，分别对左声道和右声道进行滤波，分别满足35阶FIR滤波器和315阶FIR滤波器，输出音频文件，并进行滤波效果的对比。(In the MATLAB, FIR filters with different orders are designed, and the audio files are read in. The left and right channels are filtered respectively, which satisfy the 35 order FIR filter and the 315 order FIR filter, and output the audio files, and compare the filtering results.) Platform: |
Size: 75981824 |
Author:ryanshuai |
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Search - matlab audio filters