搜索资源列表
ffmpeg-1.2.tar
- 最新的FFMPEG编解码库，适合多种音视频文件的编解码-ffmpeg is a very fast video and audio converter that can also grab from a live audio/video source. It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter.
5.4_AudioFilter
- 基于SystemGenerator的音频滤波器，实现后可以在SPARTAN6中运行。-Based on the audio SystemGenerator filter implemented in SPARTAN6 run.
xinhaolvbao
- 数字音频信号滤波：读取音频文件，加入噪声，设计合理的带阻滤波器，滤除噪音，并给出所有音频的频谱以及播放试听所有声音。-Digital audio signal filtering: read audio files, add noise, the rational design of band-stop filter to filter out noise, and given all the audio spectrum and play to listen to all voices.
mp3
- stc12 pwm 加二阶滤波 播放wav音频-stc12 pwm wav audio playback plus second-order filter
yuyin
- stc12 pwm 加二阶滤波 播放wav音频-stc12 pwm wav audio playback plus second-order filter
hilberttest
- 基于FIR设计了一个希尔伯特变换滤波器，并把该滤波器用于音频信号的解调。-FIR-based design of a Hilbert transform filter, and to the filter for audio signal demodulation.
PCMChangeSample
- C++ filter 开发 通过ACM函数 实现音频采样率变换-C++ Dshow Changing the Audio samplerate through the ACM API
noise
- 用matlab处理音频, 对一段音频加入噪声然后滤除噪声还原, 绘制过程中的频谱图-Matlab deal with audio, for adding some audio noise reduction and filter noise, rendering the process of spectrum
AVChat_Compress
- directshow视频音频传输。AVChat更改，里面有个参数设置声音的采样时间，使与视频同步。加入了压缩filter。还有direct用9.0b的200多M的那个包-directshow video and audio transmission. AVChat change, there are sound arguments set sampling time, so that the video synchronization. Join the compression filter.
eight
- Audio signal modelling containing a sequence of 2 identical chirp signals with an addition to filtering an image using simple low-pass 1-D filter.
project4
- 维纳滤波，有非常齐全的源代码、测试文件，针对不同的SNR均有比较，代码测试通过-Wiener filter ,including complete source file ,testing audio files,and comparing different SNRs.The project has passed through edition
yinyue
- 单片机读取SD卡音乐直接利用SPWM波滤播放，在播放前需要将音频文件转化为PCM格式。-Microcontroller reads the SD card music playback directly use the SPWM wave filter in front of playing audio files need to be converted to PCM format.
BICO_irid
- This function calculates a room s impulse response for an arbitrarily positioned sound source in a rbitrarily dimensioned rectangular room, as it would be heard at an arbitrary position. The output of RIR.m is a vector and can be used as an FIR filte
FIR_LPF
- 给音频叠加一个20dB的噪声，再通过一个滤波器滤除噪声-Give a 20 db of noise added to the audio, to filter out noise through a filter
ControlVolume
- 通过filter控制PCM音频音量的大小 输入输出PCM格式-The filter used to control the volume of the audio
rcosflt_Jamming
- 1、根据干扰总功率要求，在PSK调制信号带宽内产生单音干扰和多音干扰信号，并叠加到产生的信号源上。 2、将收到干扰的信号进行频率搬移到基带，然后通过匹配滤波器以及解调过程得到信息，统计误码率并与真实信息的解调误码率进行对比，评估音频干扰对PSK信号的干扰效果。 -1, according to the total power requirement of interference generated tone signal interference and multi-tone inte
FilterAnalyse
- 分析video / audio 数据流的pts以及每个数据包长度，以便处理不同步问题-paser pts for audio/video filter, help to handle sync problems
watermarking
- watermark，很全很基础的数字音频水印处理，盲检测和非盲检测，经过滤波器处理后的检测-Watermark, digital audio watermarking are all very basic, blind detection and non blind detection, the detection filter after treatment
mp3
- mp3，mp3压缩过程，感知域音频编码，滤波器处理，信噪比-Watermark, digital audio watermarking are all very basic, blind detection and non blind detection, the detection filter after treatment
Voice_frequence
- 这是一个利用DSPIC33FJ64MC802芯片进行音频AD采样以及FFT变换（得到功率谱）并将得到的数据进行串口发送的程序。该程序用于一个声音功率谱分析的设计中。 使用时需要配合外围的放大，滤波，加法器，以及电源等其他电路。并结合自编的上位机软件进行显示。 在Microchip给出的FFT函数中，256点FFT变换存在问题，无法得到正常数据。这是由于旋转因子表的错误造成的。本程序已经对其作出了修正。同时在功率谱计算的函数中，也作出了一些优化，在测量较小的幅值时，结果会更加理想。 本