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[DSP program] AudioFIR

Description: 本程序基于瑞泰公司的ICETEK-DM642-EDUlabv1.2开发板，完成音频的FIR滤波。 用ccs打开。-procedures based on the company's Tritace ICETEK- DM642- EDUlabv1.2 development board complete audio FIR filter. Opened with ccs.
Platform: | Size: 322560 | Author: 王天麟 | Hits:

[Graph program] directshowExploitation

Description: * 书 名：《DirectShow开发指南》 * 作 者： 陆其明（著） 金邦飞（审校） * 内容提要： 本书以DirectX SDK 9.0版为蓝本，涉及的内容几乎涵盖了在Windows平台上使 用DirectShow进行C++编码的方方面面。全书共分4个部分。第1部分详细介绍了 DirectShow的基础知识。第2部分重点讨论了Filter的开发，以及DirectShow 应用程序的开发，包括目前非常流行的如音视频采集、数码摄像机的支持、非线性 编辑等应用。第3部深入分析了DirectShow SDK提供的部分典型源代码例子。第 4部分结合作者个人的一些开发实践，通过案例和开放源码分析，进一步介绍 DirectShow的实务应用。-* Title : "DirectShow Development Guide"* Author : Lu Qiming (a) JIN Bang fly (Revision)* Synopsis : The book is DirectX 9.0 SDK version, modeled The contents cover almost the Windows platform using DirectShow coding for the C side aspect. The book is divided into four parts. Part 1 introduced DirectShow basic knowledge. Part 2 focused on the development of Filter, and DirectShow application development, including the current very popular, such as audio and video collection, digital cameras, nonlinear editing application. No. 3-depth analysis of the DirectShow SDK source code for some typical examples. Part 4 of the individual authors combine some development practice through case and open-source analysis, further information on the practical application of DirectShow.
Platform: | Size: 398336 | Author: long | Hits:

[Streaming Mpeg4] FilterASFStreaming

Description: 这是一个DirectShow Filter，有一个视频输入Pin和一个音频输入Pin，没有输出Pin。该 Filter的功能是，接收非压缩格式的音视频数据，然后使用Windows Media编码器进行压缩 编码，最后将编码后的数据在本机广播或推向另外一台Windows Media服务器。-This is a DirectShow Filter, with a video input and Pin Pin an audio input, no output Pin. The Filter function will be to receive non-compressed video and audio format, then use the Windows Media Encoder compression coding, Finally, the encoded data in the machine to the other broadcast or a Windows Media Server.
Platform: | Size: 33792 | Author: 古问天 | Hits:

[Streaming Mpeg4] FilterASFWriter

Description: 这是一个DirectShow Filter，用于将输入的音视频Sample写成Windows Media文件（内部 使用Windows Media编码器）。 -This is a DirectShow Filter, for the importation of the audio and video into Windows Media Sample (internal use Wind ows Media Encoder).
Platform: | Size: 28672 | Author: 古问天 | Hits:

[Audio program] AntiFltr

Description: Anti-Alias Filter Bypasser,257K Bytes 将声音文件重新采样并播放 -Anti-Alias Filter Bypasser. 257K Bytes will be re-sampled audio files and broadcasts
Platform: | Size: 264192 | Author: liuhua | Hits:

[Audio program] jrtpAudioFilter

Description:
Platform: | Size: 24576 | Author: 贾立好 | Hits:

[Streaming Mpeg4] FilterASFmuxr

Description: 这是一个DirectShow Filter，用于将输入的音视频Sample写成ASF文件（内部不使用任何 编码器）。-This is an DirectShow Filter, is used to input audio and video Sample written in ASF files (do not use any internal encoder).
Platform: | Size: 17408 | Author: 黄珣 | Hits:

[Mathimatics-Numerical algorithms] filter

Description: 能够读取wav格式的音频文件，并对读取的音频信号进行加窗，滤波，并显示滤波前后的波形-Can read wav format audio files, and read the audio signal to increase the window, filtering, and display the waveform before and after filtering
Platform: | Size: 1944576 | Author: | Hits:

[mpeg mp3] MPEG4

Description: MPEG-4音频编码 这是MPEG-4标准中采用的音频压缩技术之一：结构化音频压缩技术。 aacquant.h aacquant.c － 结构化音频量化 backpred.h backpred.c － 后向预测 channels.h channels.c － 音频信道 faac.h faac.c － 结构化音频压缩 fft.h fft.c － 快速Fourier变换 filtbank.h filtbank.c － 滤波器 frame.h frame.c － 音频帧定义 huffman.h huffman.c － Huffman编码 hufftab.h － Huffman编码码表 joint.h joint.c － 音频融合 ltp.h ltp.c － ltp加权因子 -MPEG-4 Audio Coding MPEG-4 This is the standard audio compression technology used in one of: the structure of audio compression technology. aacquant.h aacquant.c- structured audio quantization backpred.h backpred.c- after the prediction channels.h channels.c- audio channels faac.h faac.c- structured audio compression fft.h fft.c- Fast Fourier transform filtbank.h filtbank.c- Filter frame.h frame.c- definition of audio frames huffman.h huffman.c- Huffman coding hufftab.h- Huffman encoding code table joint.h joint.c- audio integration ltp.h ltp.c- ltp-weighted factor
Platform: | Size: 69632 | Author: lamching | Hits:

[DSP program] exp4-echo

Description: 电话通信中我们常会遇到回音,如何消除?本程序用自适应滤波器消除回音的方法来处理.(使用于音频信号处理)-Telephone communication, we often encounter echo, how to eliminate? This procedure using adaptive filter method to eliminate the echo treatment. (For use in audio signal processing)
Platform: | Size: 4096 | Author: | Hits:

[Windows Develop] MiniSourceFilter

Description: 这个最简单的DShow源过滤器,初学源过滤器的人或者隔了很长时间再做过滤器的人的好帮手,让你可以快速了解源过滤器的功能-This most simple dshow source filter, beginner source filter or separated for a very long time and then filter those who did a good helper, so you can quickly understand the source filter function
Platform: | Size: 67584 | Author: 罗清胜 | Hits:

[Streaming Mpeg4] MPEG4_sound

Description: MPEG-4音频编码 这是MPEG-4标准中采用的音频压缩技术之一：结构化音频压缩技术。 aacquant.h aacquant.c － 结构化音频量化 backpred.h backpred.c － 后向预测 channels.h channels.c － 音频信道 faac.h faac.c － 结构化音频压缩 fft.h fft.c － 快速Fourier变换 filtbank.h filtbank.c － 滤波器 frame.h frame.c － 音频帧定义 huffman.h huffman.c － Huffman编码 hufftab.h － Huffman编码码表 joint.h joint.c － 音频融合 ltp.h ltp.c － ltp加权因子-MPEG-4 Audio Coding MPEG-4 This is the standard audio compression technology used in one of: the structure of audio compression technology. aacquant.h aacquant.c- structured audio quantization backpred.h backpred.c- after the forecast channels.h channels.c- audio channels faac.h faac.c- structured audio compression fft.h fft.c- Fast Fourier transform filtbank.h filtbank.c- Filter frame.h frame.c- definition of audio frames huffman.h huffman.c- Huffman coding hufftab.h- Huffman encoding code table joint.h joint.c- audio integration ltp.h ltp.c- ltp-weighted factor
Platform: | Size: 57344 | Author: gzb | Hits:

[Other] 200Wdtypeamplifier

Description: 大功率音频放大器的设计，基于低通滤波器，H桥PWM技术-High-power audio amplifier design, based on the low-pass filter, H bridge PWM technology
Platform: | Size: 3111936 | Author: Yang hong | Hits:

[matlab] PCM16bit_to_PCM8bit

Description: 利用matlab实现语音输入、8bit PCM音频截短、滤波输出。用于将大于8bit的PCM语音截短为8bit的PCM语音。-Matlab realize the use of voice input, 8bit PCM audio truncated, filter output. Will be greater than for the PCM voice 8bit to 8bit truncated the PCM voice.
Platform: | Size: 1497088 | Author: hexd | Hits:

[DirextX] DirectShow

Description: * 内容提要： 本书以DirectX SDK 9.0版为蓝本，涉及的内容几乎涵盖了在Windows平台上使用DirectShow进行C++编码的方方面面。全书共分4个部分。第1部分详细介绍了DirectShow的基础知识。第2部分重点讨论了Filter的开发，以及DirectShow应用程序的开发，包括目前非常流行的如音视频采集、数码摄像机的支持、非线性编辑等应用。第3部深入分析了DirectShow SDK提供的部分典型源代码例子。第4部分结合作者个人的一些开发实践，通过案例和开放源码分析，进一步介绍DirectShow的实务应用。-* Summary: The book version of DirectX SDK 9.0 is based on, involving almost covered in the Windows platform using DirectShow for C++ All aspects of coding. Book is divided into four parts. Part 1 details the basic knowledge of DirectShow. Part 2 focused on the development of Filter, as well as the DirectShow application development, including the very popular collection, such as audio and video, digital camera support, non-linear editing applications. No. 3-depth analysis of some of the DirectShow SDK source code for a typical example. Part 4 the author combines some of the development of personal practice, through case analysis and open source, and further introduce the practical application of DirectShow.
Platform: | Size: 41665536 | Author: 马敏 | Hits:

[matlab] interpolator

Description: 插值滤波器,用于音频解码调制解调,滤波器系数用移位相加实现-Interpolation filter, audio decoder for modulation and demodulation, filter coefficient shift combined with the realization of
Platform: | Size: 966656 | Author: 蔡友 | Hits:

[BREW] TM320C54x(v2a.asm)

Description: ECE345, Visual-to-Audio Electronic Travel Aid Code for TM320C54x (v2a.asm) download This project involves the design and implementation of a audio synthesis device that converts moving images into audio signals. The system is built on a TM320C54x DSP with interface to an IMAQ camera module via the serial port on a PC. Brief description: A LabVIEW VI acquires an image from the IMAQ camera module. It quantizes the image into a 5x5, 3-bit image, and sends the data to the TM320C54x DSP via a serial port. The TM320C54x DSP constructs a 64-tap FIR by combining a series of 64-tap head related transfer functions (HRTF) according to the incoming data, and then filters an input audio signal with this FIR filter, in effect creating a correspondence between the filtered signal and the original image. -ECE345, Visual-to-Audio Electronic Travel Aid Code for TM320C54x (v2a.asm) download This project involves the design and implementation of a audio synthesis device that converts moving images into audio signals. The system is built on a TM320C54x DSP with interface to an IMAQ camera module via the serial port on a PC. Brief description: A LabVIEW VI acquires an image from the IMAQ camera module. It quantizes the image into a 5x5, 3-bit image, and sends the data to the TM320C54x DSP via a serial port. The TM320C54x DSP constructs a 64-tap FIR by combining a series of 64-tap head related transfer functions (HRTF) according to the incoming data, and then filters an input audio signal with this FIR filter, in effect creating a correspondence between the filtered signal and the original image.
Platform: | Size: 3072 | Author: zhouyu | Hits:

[Multimedia Develop] HDX4AACDecoder

Description: AAC 音频解码,DirectShow Filter-AAC audio codecs, DirectShow Filter
Platform: | Size: 65536 | Author: denggenggen | Hits:

[matlab] ADDAwatermarking

Description: 用MATLAB实现了该算法，并对所实现方法进行了验证，在步骤（3）中则给出了求出滤波器类型及参数的方案，并进行验证，在步骤（4）中通过MATLAB的AWGN函数等相关知识实现了AWGN信道的仿真。 本文首先介绍数字水印和音频水印的相关概念和发展概况，接着介绍了完成仿真工作所需的基础知识，之后提出DA/AD变换的仿真实现，-Using MATLAB realization of the algorithm, and the realization method of authentication, in step (3) in the given filter type and parameters to derive the program and verify, in step (4) through MATLAB-AWGN function and other relevant knowledge to achieve the AWGN channel simulation. This paper first introduces the digital watermarking and audio watermarking-related concepts and developments, and then introduced a complete simulation of the basic knowledge required, after the DA/AD conversion of the simulation,
Platform: | Size: 3072 | Author: byleimin | Hits:

[Multimedia program] wav

Description: 使用Direct Show进行音频捕捉。在进行音频捕捉时需要设计过滤图表，这样会使开发程序简单很多。-Use Direct Show to capture audio. When necessary during the design of audio capture filter graph, it would be easy to develop a lot of procedures.
Platform: | Size: 591872 | Author: 丁磊 | Hits:
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