Description: MPEG2TS流解析程序，输入为TS流文件，可以将视频和音频解析出来。-MPEG2TS flow analysis procedure, input TS stream files can be video and audio out to resolve. Platform: |
Size: 14336 |
Author:seanew |
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Description: 一个使用matlab进行音频信息处理的实例，对输入的语音信号，进行合成与分析。-Using matlab audio examples of information processing, the input voice signal, to carry out synthesis and analysis. Platform: |
Size: 128000 |
Author:mayongfen |
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Description: 对输入信号进行频谱分析，可以实现声音的即时采集并分析适合从事音频信号处理和分析。-Of the input signal spectral analysis, can achieve real-time voice fit to engage in collection and analysis of audio signal processing and analysis. Platform: |
Size: 69632 |
Author:sirius |
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Description: 在数字电视终端MPEG II 解码器测试中，解码能力测试是一个很关键的环节，即验证在前端输入码流满足TR 101 290 标准的前提下接收终端能正常解码，输出同步的视音频模拟信号。PCR 抖动
是影响接收终端解码的关键因素。本文深入探究了PCR 的功能和物理意义，并在分析PCR 抖动原因及其
测试参数的基础上，讨论了基于波形、幅度和频率三个参数的PCR 抖动仿真模型，并且根据实际测试终端解码器的需要，提出了具体的参数设置方法。-Terminals in the digital television decoder MPEG II test, the decoding ability of the test is a key link in that verification in the front-end input stream to meet the standard TR 101 290, under the premise receiving terminal to normal decoding, the output synchronization of video and audio analog signals. PCR jitter is the impact of receiving a key factor in decoding terminal. PCR This article explores in depth the function and physical meaning, and the reasons for the analysis of PCR jitter and test parameters on the basis of the discussion based on the waveform, magnitude and frequency of the three parameters of simulation model of PCR jitter, and test terminals based on the actual decoder the needs of specific parameter setting method. Platform: |
Size: 998400 |
Author:杨柳 |
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Description: 用mega8 做的音频分析，能够实时显示mic输入的音频信号波形和频谱。-Mega8 to do with audio analysis to real-time display mic input audio signal waveform and frequency spectrum. Platform: |
Size: 2324480 |
Author:mt |
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Description: 实现音频信号的输入和对其进行时域与频域的分析-To achieve the audio signal input and its time domain and frequency domain analysis of Platform: |
Size: 1024 |
Author:ly |
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Description: A speech signal filterbank, using melscale frequency and framebanking.- 1. For speech signal can be represented as a discrete sequence of frames (or feature vectors) that can be used as the input to a speech recogniser. Important ideas and techniques that are used in the assignment are the design of a (Mel frequency scale) audio filterbank, , windowing of a continuous audio signal, spectrum analysis of the signal, filtering as multiplication in the frequency domain, the visual representation of a speech signal as a spectrogram, appreciation of the acoustic variability in real speech utterances.
2. To gain a deeper knowledge of the application of MATLAB programming to audio signal processing.
3. To gain practice in the art of writing a formal report: structure, content, style, use of diagrams, presentation etc. etc.
Platform: |
Size: 3072 |
Author:Yijian Lou |
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Description: 语音记录仪用来分析记录语音波形，以实现微机控制命令的语音输入。设计者完成语音记录仪的硬件和软件设计。任务包括：
1、声波信号通道的设计
2、声波信号采集方法确定
3、10秒钟声波记录数据空间的计算
4、串行通讯RS232口的硬件设计。
5、写出程序流程图及汇编程序。-Voice recorder to record audio waveform analysis in order to achieve computer control commands voice input. Designers complete voice recorder hardware and software design. Tasks include: 1, 2 acoustic signal path design, acoustic signal acquisition method to determine the acoustic record 3,10 seconds, the calculation of the data space 4 port RS232 serial communication hardware design. 5, write a program flow chart and assembler. Platform: |
Size: 198656 |
Author:庆庆 |
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Description: 音响检测电路分析的情况。8路电压检测模拟输入量，然后输出0,1代码到电脑上-The audio detection circuit analysis of the situation. 8-channel input of the voltage detector simulation, and then output the 0,1 code to the computer Platform: |
Size: 1024 |
Author:徐培麒 |
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Description: 本文设计的虚拟频谱分析仪的功能包括音频信号信号输入、信号波形分析、信号频谱分析。-This paper, the design of the virtual spectrum analyzer features include audio signal signal input, the signal waveform analysis, signal spectrum analysis. Platform: |
Size: 269312 |
Author:江为 |
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Description:
The goal of this project is separate the sound mixtures (.wav) to source signal.
-it is an audio blind source separation with independent component analysis.
In the file , it contains correlation.m, decorrelation.m, ica_.m , joint_diag.m, permuation.m, separation.m, Readme.txt
,X_linear.wav,X_room.wav
and readme.txt can help users operate the code correctly.
Beside the X_linear.wav,X_room.wav is the sound mixtures is considered as input signal
Platform: |
Size: 125952 |
Author:liu |
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Description: 语音信号进行分析、处理和设计。用MATLAB做变声器的原理是通过改变输入声音频率，进而改变声音的音色、音调，使输出声音在感官上与原声音不同。变声器是借助对声音音色和音调的双重复合改变，实现输出声音的改变。通过自己发声，共振峰频率的改变是基于重采样实现的-Speech signal analysis, processing and design. MATLAB do voice-changer works by changing the input frequency of the sound, and then change the sound of the tone, pitch, so that the output audio with the original sound in different senses. Voice Changer is the use of sound timbre and tone of the dual composite changes, realize the output sound changes. Through their own sound, formant frequency change is implemented based on resampling Platform: |
Size: 10240 |
Author:刘安兰 |
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Description: 语音信号进行分析、处理和设计。用MATLAB做变声器的原理是通过改变输入声音频率，进而改变声音的音色、音调，使输出声音在感官上与原声音不同。变声器是借助对声音音色和音调的双重复合改变，实现输出声音的改变。通过自己发声，共振峰频率的改变是基于重采样实现的-Speech signal analysis, processing and design. MATLAB do voice-changer works by changing the input frequency of the sound, and then change the sound of the tone, pitch, so that the output audio with the original sound in different senses. Voice Changer is the use of sound timbre and tone of the dual composite changes, realize the output sound changes. Through their own sound, formant frequency change is implemented based on resampling Platform: |
Size: 7168 |
Author:刘安兰 |
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Description: 用matlab进行双音频电话的频谱分析 。从输入的音频信号中，读出电话的编码-Using matlab for spectral analysis of dual-tone phone. From the input audio signal, the read out encoding telephone Platform: |
Size: 1024 |
Author:卫理 |
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Description: The National Instruments PCI-4472 and
PXI-4472 are 8-channel dynamic signal
acquisition devices for making high-accuracy
audio-frequency measurements. The
PCI-4474 is a similar 4-channel board.
The vibration-optimized NI PXI-4472B offers a lower AC cutoff frequency
of 0.5 Hz. Input channels incorporate Integrated Electronic Piezoelectric
(IEPE) signal conditioning for accelerometers and microphones. The
input channels of an NI 447x simultaneously digitize input signals over
a bandwidth from DC to 45 kHz. You can synchronize multiple NI 447x
devices for high-channel-count applications, or with other modules using
the PXI star trigger bus or the RTSI bus on PCI. When used with the
Sound and Vibration Toolkit or other software analysis tools, an NI 447x
can obtain a variety of accurate time and frequency measurements for
your application. Platform: |
Size: 65536 |
Author:damparm |
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Description: 实现了DSP5416硬件开发板上的实时音频滤波效果，试验验证通过。音频由音频口输入，可在耳机输出口听到滤波之后的效果，以及电脑上录制处理之后的波形进行分析。-DSP5416 hardware development board to achieve a real-time audio filtering effect, experimental validation through. Audio from the audio input port can be heard in the headphone output after filtering effects, and recorded on a computer after the processing of the waveform analysis. Platform: |
Size: 124928 |
Author:马墨林 |
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Description: 由于科学技术的飞速发展，使银行卡的使用范围不断扩大，因而出现银行卡用卡安全问题 。本文主要介绍了银行卡密码泄露漏洞，对利用录音设备对手机、电话等按键式密码输入终端进录音盗取银行卡密码的不法行为进行技术分析，利用MATLAB软件编程对按键式密码输入终端的按键音进行音频分析，基于短时能量和过零率对所采集的音频文件进行端点检测，提取出单个拨号音，然后对处理后的音频进行频谱分析、对比，从而识别按键式密码输入终端的按键音。-Due to the rapid development of science and technology, the use of bank cards continued to expand, and thus to a bank card with a card security issues. This paper describes the bank card password disclosure vulnerability on the use of recording equipment on the phone, telephone touchtone input terminal password into the recording steal bank card passwords wrongful conduct technical analysis using MATLAB software programming for touchtone input terminal password keys sound audio analysis, based on short-term energy and zero-crossing rate of the acquired endpoint detection audio files, extract single dial tone, and then processed audio spectrum analysis, comparison, to identify key touchtone input terminal password sound. Platform: |
Size: 4096 |
Author:张校非 |
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Search - audio input analysis