Description: 1．产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，分别设计三种高通，
低通，带通滤波器对信号进行滤波处理，观察滤波后信号的频谱。
2.采集一段含有噪音的语音信号（可以录制含有噪音的信号，或者录制语音后再加进噪音信号），对其进行
采样和频谱分析，根据分析结果设计出一合适的滤波器滤除噪音信号-1. Produce a continuous signal, including low-frequency, medium frequency, high-frequency components, its sampling, spectral analysis, are designed for three high-pass, low pass, band-pass filter the signal filtering treatment to observe the signal spectrum after filtering. 2. Acquisition section of the speech signal contains noise (can record a signal containing noise, or voice recording, additional noise after the signal), its sampling and spectral analysis, based on an analysis of the results to design a suitable filter to filter out one noise signal Platform: |
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Author: |
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Description: 录制一段个人自己的语音信号，并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，采用窗函数法和双线性变换设计滤波器，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；最后，设计一个信号处理系统界面。-Record a person s own voice signal, and recording the signal sampling draw sample after the speech signal time-domain waveform and frequency spectrum given filter performance indicators, using a window function method and the bilinear transform filter design and draw the frequency response filter then use the filter of their own design for the signal acquisition filtering, after filtering the signal to draw the time-domain waveform and spectrum, and filtering of signals before and after contrast, analysis of signal changes playback of voice signal Finally, the design of a signal processing system interface. Platform: |
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Author:yim |
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Description: 录制一段自己的语音信号，并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，采用窗函数法和双线性变换设计滤波器，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；最后，设计一个信号处理系统界面。-Section of their own voice recording signal, and recording the signal sampling draw sample after the speech signal time-domain waveform and frequency spectrum given filter performance indicators, using a window function method and bilinear transformation design of filters, and draw the frequency response filter then use the filter of their own design for the signal acquisition filtering, after filtering the signal to draw the time-domain waveform and spectrum, and filtering of signals before and after contrast, analysis of signal changes playback voice signal Finally, the design of a signal processing system interface. Platform: |
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Author:joe |
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Description: 一个基于PC声卡和matlab的实时语音信号采集分析系统，带有界面图形，功能较完善-A matlab based on PC sound card and the real-time voice signal acquisition analysis system with graphic interface, function better Platform: |
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Author:zhaoqingtian |
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Description: 语音信号采集与分析
简单地讲，可以在原声音流中叠加延迟一段时间后的声流，实现回声效果。当然通过复杂运算，可以计算各种效应的混响效果。如此产生的回声，我们称之为数字回声。初始化配置： 05 户通过 12C 总线将配置命令发送到 AIC23 ，配置完成后 AIC23 开始工作。语音信号的输入： AIC23 通过其中的 AO 转换采集输入的语音信号，每采集完一个信号后，将数据发送到 05 户的 McBS 户接口上， 05 户可以读取到语音数据，每个数据为 16 位无符号整数，左右通道各有一个数值。语音信号的输出： 05 户可以将语音数据通过 McBS 户接口发送给 AIC23 , AIC23 的 OA 器件将他们变成模拟信号输出。-Speech Signal Acquisition and Analysis
Simply put, you can stream at the original voices superimposed delayed for some time after the acoustic streaming, achieve echo effects. Of course, through complex calculations, can calculate a variety of reverb effects. Echo so produced, we call the digital echo. Initialization, configuration: 05 through 12C bus to configure the command sent to the AIC23, configured to work after the completion of AIC23. Speech Signal input: AIC23 through one of the AO Acquisition conversion of voice input signal, a signal after each acquisition, the data is sent to the 05 interface on McBS households, 05 can be read into the voice data, each data is 16 bit unsigned integer, a value about each channel. Voice signal output: 05 may be voice data sent through the interface McBS families give AIC23, AIC23 of OA devices into their analog signal output. Platform: |
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Author:fishsky |
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Description: 1、语音信号的采集；
2、语音信号的频谱分析；
3、数字滤波器的设计；
4、对语音信号进行滤波处理；
5、对滤波前后的语音信号频谱进行对比分析；
-1, speech signal acquisition 2, the speech signal spectrum analysis 3, digital filter design 4, on the voice signal filtering processing 5, to filter the speech signal before and after a comparative analysis of the spectrum Platform: |
Size: 148480 |
Author:刘俊龙 |
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Description: 本文简要介绍了语音信号采集与分析的发展史以及语音信号的特征、采集与分析方法，并通过PC机录制自己的一段声音，运用Matlab进行仿真分析，最后加入噪声进行滤波处理，比较滤波前后的变化。-This paper introduces the voice signal acquisition and analysis of the history and characteristics of speech signals, sampling and analysis methods, and through a PC, record your own voice, use of Matlab simulation and analysis, and finally adding noise filtering, comparing before and after filtering change. Platform: |
Size: 196608 |
Author:Conan King |
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Description: 本文分析了语音数字信号的采集来源以及其预处理。通过实例，利用Matlab对语音信号进行时频变换与分析，同时构造一个固定频率的干扰信号，对两个信号进行合成，设计数字滤波器，实现对语音信号的F IR、IIR滤波处理，最后在时域和频域中对信号进行分析比较。-This paper analyzes the sources of voice digital signal acquisition and its pretreatment. By example, voice signals using Matlab time-frequency transform and analysis, and construct a fixed-frequency interference signals, the two signal synthesis, design digital filters to realize the speech signal F IR, IIR filtering, and finally time domain and frequency domain signal analysis and comparison. Platform: |
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Author:孙洋 |
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Description: 1）语音信号的采集
2）语音信号的频谱分析
3）设计高通、低通数字滤波器和画出其频率响应
4）用滤波器对信号进行滤波
5）比较滤波前后语音信号的波形及频谱
6）播放原始语音信号
7）实现快放、慢放功能
8）实现回音音效效果
9）实现变高音、低音效果
10）设计GUI系统界面
-1) voice signal acquisition 2) speech signal spectrum analysis 3) design high-pass, low pass digital filter and plot its frequency response 4) filtering the signal with a filter 5) to compare the before and after filtering the speech signal waveform and spectrum 6) Play the original voice signal 7) to achieve fast, slow function 8) to achieve an echo sound effect 9) to achieve change treble, bass 10) GUI system interface design Platform: |
Size: 4856832 |
Author:韩成瑶 |
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Description: 利用MATLAB对语音信号进行数字信号处理和分析,以及合成，在MATLAB软件平台对所采集的语音信号，加快和变慢语速,同时进行一些特殊处理,如回音和变声,并进行语音的线性预测分析。-MATLAB voice signal to digital signal processing and analysis, and synthesis, in the MATLAB software platform for the acquisition of the speech signal, speed up and slow speech rate, while some special handling, such as echo and change the sound and voice linearpredictive analysis Platform: |
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Author:ljj |
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Description: 基于MATLAB的语音信号分析及滤波(DSP课程设计说明书) 设计题目、内容及要求 课程设计的题目：基于MATLAB的语音信号分析及滤波。 课程设计的内容：录制一段个人自己的语音信号,并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,采用窗函数法和双线性变换设计滤波器,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-Design based on MATLAB voice signal analysis and filtering (DSP curriculum design manual) subject, content and requirements for curriculum design Title: MATLAB-based analysis and filtering of the voice signal. Curriculum design: recording period of the individual' s own voice signal, and the recorded signal is sampled draw the sampled speech signal time-domain waveform and frequency spectrum to set the filter performance, using a window function method and double transform the design of filters, and draw the frequency response of the filter signal acquisition, filtering, and then use the filter of their own design to draw the waveform and spectrum of the filtered signals in time domain and filtering Platform: |
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Author:Rokey_Niu |
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Description: 采集一段语音信号，分别用矩形窗、汉纳窗、汉明窗、布莱克曼窗对采集的原始语音信号进行窗宽为N 的加窗FFT变换，得到利用不同窗函数对语音信号进行加窗FFT变换后的信号频谱图。观察不同窗函数的加窗效果，分析窗函数的适用情况。-Collecting a voice signal, respectively, with a rectangular window, Hanna window, Hamming window, Blackman window on the original speech signal acquisition window width is N plus window FFT transform, obtained using different window functions of the voice signal on windowed FFT converted signal spectrum diagram. Observe the different effect of the window function windowed analysis window function applicable. Platform: |
Size: 2048 |
Author:白元 |
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Description: 语音信号的采集与处理
采集语音信号后，利用MATLAB软件平台进行频谱分析；并对所采集的语音信号加入干扰噪声，对加入噪声的信号进行频谱分析，设计合适的滤波器滤除噪声，恢复原信号。-Collection and processing of speech signals
After the voice signal acquisition using MATLAB software platform for spectral analysis voice signal and noise interference join collected, adding noise to the signal spectrum analysis, design appropriate filter to filter out the noise, to restore the original signal. Platform: |
Size: 229376 |
Author:李凯 |
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Description: 设计一个 20Hz~20KHz 范围内的频谱分析仪（用计算机声卡）；
要求：
1） 用计算机声卡实时采集语音信号，并实时显示时域波形信号；
2） 可以从计算机中读取语音信号文件，并能够实时显示时域波形信号；
3） 实现对信号进行幅度上的放大、缩小显示，存储等；
4） 实时显示信号的频谱，信号的频谱分辨率可以进行设置；
5） 采用常见的低通、高通、带通、带阻（50Hz）滤波器对信号进行滤波，滤波器阶数可调，带宽可调，观察信号频谱的变化；
6） 对信号频谱进行非实时高分辨率分析；
7） 编制 GUI 用户界面，能够在用户界面上实现上述所有功能。
8） 其它功能可参考商用 FFT 分析仪添加；
-Design a spectrum analyzer 20Hz ~ 20KHz range (with a computer sound card)
Requirements:
1) with the computer s sound card real time voice signal acquisition and real-time display time-domain waveform signal
2) You can read the speech signal files from your computer, and the time-domain waveform signal can be displayed in real time
3) realize the magnitude of the signal amplification on the narrow display, storage, etc.
4) Real-time display spectral resolution signal spectrum, the signal can be set
5) using a common low pass, high pass, band pass, band stop (50Hz) signal filtering filters, filter order adjustable, adjustable bandwidth, observed changes in the signal spectrum
6) for non-real-time high-resolution signal spectrum analysis
7) the preparation of GUI user interface, to achieve all of the above functions in the user interface.
8) Other functions can be added with reference to commercial FFT analyzers Platform: |
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Author:李凯 |
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Description: 语音信号的延时和混响
1）利用Windows下的录音机或其他软件，录制一段自己的语音信号，时间控制在1s左右，并对录制的信号进行采样；
2）语音信号的频谱分析，画出采样后语音信号的时域波形和频谱图；
3）将信号加入延时和混响，再分析其频谱，并与原始信号频谱进行比较；
4）设计几种特殊类型的滤波器：单回声滤波器，多重回声滤波器，全通结构的混响器，并画出滤波器的频域响应；
5）用自己设计的滤波器对采集的语音信号进行滤波；
6）分析得到信号的频谱，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；
7）回放语音信号。
-1) the use of tape recorders or other software under Windows, record your own voice signal period, the time control in about 1s, and the recorded signal is sampled
2) the spectrum of the speech signal analysis, time domain waveform and frequency spectrum of the speech signal sampled after drawing
3) the signal to the delay and reverb, and then analyze the spectrum, and compare with the original signal spectrum
4) designed several special types of filters: a single echo filter, multi-echo filters, all-pass structure of reverb and draw the filter frequency response
5) use their own design filter for filtering the speech signal acquisition
6) Analysis of the spectrum of the signal obtained after filtering the time-domain waveform and draw spectrum signals, and comparing the signal before and after filtering, analyzing changes in the signal
7) playback voice signal. Platform: |
Size: 1024 |
Author:张三 |
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Description: 在matlab中利用声卡对语音信号进行实时采集，并采集波形图，对采集信号进行频谱分析，画出频谱图，能查找峰值频率。有详细的注释和参数调整说明-In Matlab using real- time audio of the speech signal acquisition and acquisition waveform, Spectral Analysis of Signals and draw the spectrum, can find the peak frequency.A detailed description of the annotation and parameter adjustment Platform: |
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Author:海洋 |
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Description: 包括主成分分析、因子分析、贝叶斯分析，matlab编写的元胞自动机，语音信号的采集与处理，数字信号处理课设。- Including principal component analysis, factor analysis, Bayesian analysis, matlab prepared cellular automata, Acquisition and Processing of the speech signal, digital signal processing class-based. Platform: |
Size: 5120 |
Author:李小生 |
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Description: 本文简要介绍了语音信号采集与分析的发展史以及语音信号的特征、采集与分析方法，并通过PC机录制自己的一段声音，运用Matlab进行仿真分析，最后加入噪声进行滤波处理，比较滤波前后的变化(This paper briefly introduces the history of the development of speech signal acquisition and analysis, the feature of speech signal, the method of collecting and analyzing the voice signal, recording one's own voice by PC, using Matlab to simulate and analyzing, and finally adding noise to filter and compare the change before and after filtering.) Platform: |
Size: 195584 |
Author:chaos111 |
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Search - speech signal acquisition analysis