采样率转换

这个设计范例展示了如何使用DE2-115 开发板以及一个PS/2 键盘和扬声器，来实现多音电子 键盘。 PS/2 键盘模拟钢琴键盘用于输入按键信息。DE2-115 上的FPGA 芯片用来实现音乐合成器， 生成不同音调的音频信号。连接到DE2-115 开发板上的VGA 显示器用来显示按键动作。

rt_lpc is a light-weight application that performs real-time LPC analysis and synthesis. It features the following: real-time LPC analysis real-time LPC synthesis visualization of original, predicted, and error waveforms visualization of vocal tract shape from LPC coefficients adjustable LPC analysis order adjustable synthesis pitch shift MIDI controlled pitch (hit m ) lots of other choices (pitch pulse source selection, emphasis filter) STFT plot modular LPC library available on MacOS X, Linux, and Windows under GPL part of the sndtools distribution

G.723.1优化代码 纯C代码优化，性能不错，编码解码算法都包含；有针对TI平台和windows的工程和测试用例

本程序是用MATLAB设计并实现一个简单的说话人识别系统,其主要功能模块包括语音信号的输入管理模块 ,语音的鉴别即特征提取块,语音的认证模块,程序很全. -this procedure is used MATLAB design and implement a simple speech recognition system, Its main function modules including voice signal input management module, voice identification or feature extraction block, Voice authentication module, the whole process is.

Windows MCI control-Windows MCI Control

应用背景delphi开发调用系统的TTS播报和生成语音文件  关键技术支持 文本转换语音文件及保存   语音播报及生成语音文件 wav 格式

Mpeg2_audio_decoder， 13818-3, 同时提供了很多音频处理小工具，spdif转换工具，mpeg demux工具-Mpeg2_audio_decoder, 13818-3. while a lot of small audio processing tools, SPDIF conversion tools mpeg demux tools, etc.

VC++编的audio文件格式转换程序。可将VOC文件转换成WAVE文件，也可将WAVE文件转换成VOC文件。-VC++ Made the audio file format conversion process. VOC files can be converted to WAVE file, can also be converted to WAVE file VOC file.

对16bit的WindowPCM的语音文件进行压缩为4BIT的文件,压缩率约为75％,可大幅缩减所占用的空间.-The WindowPCM of 16bit audio files for 4bit compressed files, compression rate is about 75, can be substantially reduced by the space occupied.

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