3D surround sound effect dealing

labview 锁相放大器，基于相关检测原理设计了一种数字锁相放大器，重点研究了采样频率与相关运算结果的关系。发现参考信号为方波而采样频率与信号频率成一定关系时，系统相关运算存在固有误差。为减少该误差，首次将动态采样法引入数字锁相放大器设计中，运算发现动态采样的采样频率数越多，奇点产生的误差越少。基于LabVIEW 软件对所设计的检测系统进行了仿真 测试，测试结果表明该数字锁定放大器在信号幅度为5 V、噪声标准差小于等于50 时( SNR = －34． 04 dB) ，能有效地检测出频 率为500 kHz 以下的信号，系统检测结果与理论计算值的相对误差基本不超过2%。可以用于

很好的声学工具箱，有matlab和c文件-Very good audio tools, include Matlab,C files.

i writing an free losless audio coder, faster on old 486 than flac or ape decoding on pentium 233 MHz !!! the program working, and compression ratio is equal to flac / ape ... On pentium 233 MHz flac decompress time is 26 sec of enya_.wav . ape is more than 45 sec... :) approx 14 sec coding enya.wav with pkzip, and my routines not have completed. My hope is 4 sec compression time, if completing, and decompressing a 16 bit stereo 44100 Hz is real time on 80286 cpu !!! PLEASE HELP ME ! i am an hungarian programmer, and i cannot wrtite in english perfectly. i not have time for write code for incoming 16 bit variable contents ! i want variable bit size putting into 8 bit foam. the 16 bit variable containing e.g. 7 bit valuable data, and 8 of this data must be storing into 8 bit datas. (code need 24 .. 2 bit incoming packing into 8 bit data.)-i writing an free losless audio coder, faster on old 486 than flac or ape dec

aac+sbr，对arm优化。最新版本 。-hx

wave2mid - Audio Midi Conversion - Version 0.2.15-wave2mid-Audio Midi Conversion-Version 0.2.15

基于matlab的小波图像融合算法，效果明显。-Matlab wavelet-based image fusion algorithm, an evident result.

matalb听觉处理工具箱,很多关于听觉和语音信号处理的有用函数,值得参考.-matalb auditory processing toolbox, a lot of hearing and speech signal processing useful function, a good reference.

linux音频编程，介绍了在linux下的有关对声卡操作，声卡驱动程序介绍以及介绍有关对声卡录放语音编程的具体步骤。-linux audio programming, introduced in linux under the right sound card operation, sound card driver on the right and on audio recorders voice to the specific programming steps.

C++编译mp3编解码的源代码，有助于学习掌握基本的mp3技术。 值得学习和参考。-C++ Compiler mp3 codec source code, help learning basic skills of mp3 technology. Worthy of study and reference.

对AAC的音频文件进行分析并输出各种音频格式的源代码，十分难得！-Of AAC audio files to analyze and export a variety of audio formats, source code, is very rare!