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[Communication] OFDM_simu_code

Description: 可以仿真一个OFDM的传输.其中imagetx.m生成OFDM信号,保存为一个WAM文件.可以支持声卡播放.imagerx.m对保存的WAV文件解码.-OFDM transmission. Which imagetx.m OFDM signal generation, Save as a WAM document. audio players can support. imagerx.m to preserve the WAV files decoder .
Platform: | Size: 161655 | Author: 陈昕 | Hits:

[mpeg mp3] mpeg2dump.tar

Description: LibMPEG3 decodes several MPEG standards into uncompressed data suitable for editing and playback. libmpeg3 currently decodes: MPEG-2 video MPEG-1 video mp3 audio mp2 audio ac3 audio MPEG-2 transport streams MPEG-2 program streams MPEG-1 program streams IFO files The video output can be in many different color models and frame sizes. The audio output can be in twos compliment or floating point. Frame accurate seeking, normally impossible in transport streams, is possible in libmpeg3 through the use of a table of contents. MPEG-2 video in YUV-422 colorspace is decodable. Digital TV broadcasts and DVD s can be edited using libmpeg3. Libmpeg3 takes what is normally a last mile distribution format and makes it editable. Because of these and other features libmpeg3 is not intended for consumer applications but serves users who are interested in high quality editing and footage acquisition. -several LibMPEG3 decodes MPEG standards i nto uncompressed data suitable for editing and playback. libmpeg3 currently decodes : MPEG-2 video in MPEG-1 video mp3 audio mp2 audio ac 3 audio MPEG-2 transport streams MPEG-2 progr m streams MPEG-1 program streams IFO files The v ideo output can be in many different color model 's and frame sizes. The audio output can be in twos compliment or floating point. Frame's accurate eeking. normally impossible in transport streams. in libmpeg3 is possible through the use of a tabl e of contents. MPEG-2 video in YUV-422 colorspa ce is decodable. Digital TV broadcasts and DVD's can be edited using libmpeg3. Libmpeg3 takes wh at is normally a last mile a distribution format nd makes it editable. Because of these and other libmpeg3 features is n
Platform: | Size: 712446 | Author: robo | Hits:

[mpeg mp3] myplayer240

Description: 可播放MP3，MP2，，WMA，WMV，AVI，RM等影视音频文件，自己制作的，希望大家能多给指点-This programe can play MP3,MP2,WMA,WMV,AVI,RM and some other audio video format files. Self design.I hope that all will benefit me with some advice and valuable suggestions.
Platform: | Size: 201728 | Author: 朱陟山 | Hits:

[Program doc] OFDM_simu_code

Description: 可以仿真一个OFDM的传输.其中imagetx.m生成OFDM信号,保存为一个WAM文件.可以支持声卡播放.imagerx.m对保存的WAV文件解码.-OFDM transmission. Which imagetx.m OFDM signal generation, Save as a WAM document. audio players can support. imagerx.m to preserve the WAV files decoder .
Platform: | Size: 161792 | Author: | Hits:

[mpeg mp3] mpeg2dump.tar

Description: LibMPEG3 decodes several MPEG standards into uncompressed data suitable for editing and playback. libmpeg3 currently decodes: MPEG-2 video MPEG-1 video mp3 audio mp2 audio ac3 audio MPEG-2 transport streams MPEG-2 program streams MPEG-1 program streams IFO files The video output can be in many different color models and frame sizes. The audio output can be in twos compliment or floating point. Frame accurate seeking, normally impossible in transport streams, is possible in libmpeg3 through the use of a table of contents. MPEG-2 video in YUV-422 colorspace is decodable. Digital TV broadcasts and DVD s can be edited using libmpeg3. Libmpeg3 takes what is normally a last mile distribution format and makes it editable. Because of these and other features libmpeg3 is not intended for consumer applications but serves users who are interested in high quality editing and footage acquisition. -several LibMPEG3 decodes MPEG standards i nto uncompressed data suitable for editing and playback. libmpeg3 currently decodes : MPEG-2 video in MPEG-1 video mp3 audio mp2 audio ac 3 audio MPEG-2 transport streams MPEG-2 progr m streams MPEG-1 program streams IFO files The v ideo output can be in many different color model 's and frame sizes. The audio output can be in twos compliment or floating point. Frame's accurate eeking. normally impossible in transport streams. in libmpeg3 is possible through the use of a tabl e of contents. MPEG-2 video in YUV-422 colorspa ce is decodable. Digital TV broadcasts and DVD's can be edited using libmpeg3. Libmpeg3 takes wh at is normally a last mile a distribution format nd makes it editable. Because of these and other libmpeg3 features is n
Platform: | Size: 712704 | Author: robo | Hits:

[Speech/Voice recognition/combine] hao

Description: 里边包含了详细的代码及所需的音频文件,很详细,实现语音识别系统-Inside contains a detailed code and the required audio files, in great detail, the realization of speech recognition system
Platform: | Size: 1434624 | Author: zengliang | Hits:

[Audio program] SSC-matlab

Description: 实现正弦编解码（Sinusoidal coding)的matlab程序 sinusoidal_analysis.m文件定义了函数[A, F, P, fs] = sinusoidal_analysis(filename, framelen, frameshiftlen)，将*.wav音频文件提取出A, F, P这3个参数矩阵。 sinusoidal_synthesis.m文件定义了函数syspeech = sinusoidal_synthesis(A, F, P, fs, framelen, frameshiftlen, orispeech, filename)，通过A, F, P这3个参数矩阵合成*.wav音频文件-Achieve sinusoidal codec (Sinusoidal coding) the matlab procedure sinusoidal_analysis.m document defines a function [A, F, P, fs] = sinusoidal_analysis (filename, framelen, frameshiftlen), will be*. wav audio file to extract A, F, P This three parameter matrix. sinusoidal_synthesis.m document defines a function syspeech = sinusoidal_synthesis (A, F, P, fs, framelen, frameshiftlen, orispeech, filename), through A, F, P This 3 parameter matrix synthesis*. wav audio files
Platform: | Size: 4096 | Author: 凝空子 | Hits:

[mpeg mp3] mp3_toolbox_v2.0

Description: These are a couple of m-files to read and write mp3 audio files [i.e. files compressed using MPEG-Audio layer 3 encoding] under Matlab.在matlab中读写mp3，这是2.0版本-These are a couple of m-files to read and write mp3 audio files [i.e. files compressed using MPEG-Audio layer 3 encoding] under Matlab.
Platform: | Size: 475136 | Author: corner | Hits:

[Driver Develop] sound

Description: 在Centos和RedFlag6.0下实现播放wav格式的音频文件，仔细看代码，你需要自己修改一些参数，来播放其他的音频文件，因为我很懒，你自己修改源代码让它更好吧。-Under Centos and RedFlag6.0 the play wav format audio files, a close look at the code, you need to modify some parameters to play other audio files, because I' m lazy, you modify the source code to make it better.
Platform: | Size: 4306944 | Author: 黎连文 | Hits:

[Other] DSP

Description: 先采集一单声道音频信号（.wav）并用WAVREAD文件采样读取，并对其进行频谱分析。分别用窗函数法和双线性变换法设计低通、高通、带通三种FIR滤波器和IIR滤波器。用M文件使信号通过滤波器并对输出信号进行时域和频域分析。-First acquisition of a mono audio signal (. Wav) files with sampling WAVREAD read, and their spectral analysis. Window function, respectively and the design of bilinear transform low-pass, high pass, band-pass FIR filters and IIR three filters. M document with the signal through the filter and the output signal in time domain and frequency domain analysis.
Platform: | Size: 197632 | Author: 宋立泉 | Hits:

[Other] audiowatermark

Description: 音频水印算法实现，其中包括水印的嵌入，音频水印常用攻击，以及检测算法的实现。-Audio watermarking algorithms, including the watermark embedding, audio watermarking common attacks, and the detection algorithm.
Platform: | Size: 2048 | Author: 王景 | Hits:

[Audio program] noisetracking

Description: 包含M文件，培训和跟踪落实的噪音中描述的算法： [1] J.S.厄克伦斯和R. Heusdens，“非平稳噪声跟踪基于数据驱动的递归噪声功率的估计”，IEEE期刊。音频，语音卷。 16，第6页。1112年至1123年，2008年8月。 见Description.doc在zip文件。-Contains m-files to train and implement the noise tracking algorithm described in: [1] J.S. Erkelens and R. Heusdens, "Tracking of nonstationary noise based on data-driven recursive noise power estimation", IEEE Trans. Audio, Speech & Lang. Proc., Vol. 16, No. 6, pp. 1112-1123, August 2008. See Description.doc in the zip-file.
Platform: | Size: 128000 | Author: zaaa | Hits:

[matlab] MATLAB

Description: .M黨共5個~~ 都是GUI設計界面之設計~~ 音訊檔處理之介面~~ -. M ~ ~ Party of 5 is GUI design interface design audio files ~ ~ ~ ~ processing interface
Platform: | Size: 2048 | Author: 謝秉寰 | Hits:

[Multimedia Develop] juce_1_53

Description: JUCE最突出的特点是其对音频的特殊支持。JUCE原本是作为Tracktion audiosequencer的一部分而开发的，但后来脱离出来成为了一个独立的工程。JUCE支持音频和MIDI回放，复音合成器，对多种音频格式文件的读取。同时，JUCE还封装了诸如VST、RTAS、AU等技术的代码，能够开发各种音源、效果插件。众多音频厂商如Imageline、M-AUDIO、cycling74、KORG、Presonus、TC Group等等都是JUCE的使用者。-JUCE most prominent feature is its special support for audio. JUCE was originally developed as the Tracktion audiosequencer part of, but later spun off into a separate project. JUCE support for audio and MIDI playback, polyphonic synthesizer, read a variety of audio format files. At the same time, JUCE also encapsulate code technologies such as VST, RTAS, AU, to develop a variety of audio effects plug-ins. Wide range of audio manufacturers users as Imageline, M-AUDIO, cycling74, KORG, Presonus, TC Group, etc. are JUCE
Platform: | Size: 7623680 | Author: Andy | Hits:

[mpeg mp3] Mp3

Description: 文件压缩技术的日新月异使得MP3成为时下最烫手的音乐格式，优质的音乐随着0与1的排列迅速散布到世界各地，撼动人心。何谓MP3？MP3的全称是MPEG Audio Layer 3，它是一种高效的计算机音频编码方案，它以较大的压缩比将音频文件转换成较小的扩展名为.MP3的文件，基本保持原文件的音质。MP3是 ISO/MPEG标准的一部分，ISO/MPEG标准描述了使用高性能感知编码方案的音频压缩，此标准一直在不断更新以满足“质高量小”的追求，现已形成 MPEG Layer 1、Layer 2、Layer 3三个音频编码解码方案。MPEG Layer 3压缩率可达1:10至1:12，1M的MP3文件可播放1分钟，而1分钟CD音质的WAV文件（44100Hz，16bit，双声道，60秒）要占用 10M空间，这样算来，一张650M的MP3光盘播放时间应在10小时以上，而同样容量的一张CD盘播放时间在70分钟左右。MP3的优势是CD难以比拟的。-File compression technology with each passing day makes the MP3 music format to become among the most hot, high-quality music quickly spread with the arrangement of 0 and 1 around the world, to stir the hearts. What is MP3? The full name of the MP3 is MPEG Audio Layer 3, it is a highly effective computer audio coding scheme, a larger compression than audio files into smaller extension. MP3 file, keeping the sound quality of the original file. MP3 is part of the ISO/MPEG standard, ISO/MPEG standard describes the use of high performance perceptual coding scheme audio compression, this standard has been continuously updated to meet the high-quality small amount of pursuit, has been the formation of the MPEG Layer 1, Layer 2, Layer 3, three audio encoding and decoding programs. MPEG Layer 3 compression ratio up to 1:10 to 1:12,1 M MP3 files can be played one minute, one minute of CD-quality WAV file (44100Hz, 16bit, dual-channel, 60 seconds) to take up 10M of space, so calculation, a 650M
Platform: | Size: 18432 | Author: 魔将 | Hits:

[mpeg mp3] MPEG1-Layer-3

Description: 文件压缩技术的日新月异使得MP3成为时下最烫手的音乐格式，优质的音乐随着0与1的排列迅速散布到世界各地，撼动人心。何谓MP3？MP3的全称是MPEG Audio Layer 3，它是一种高效的计算机音频编码方案，它以较大的压缩比将音频文件转换成较小的扩展名为.MP3的文件，基本保持原文件的音质。MP3是 ISO/MPEG标准的一部分，ISO/MPEG标准描述了使用高性能感知编码方案的音频压缩，此标准一直在不断更新以满足“质高量小”的追求，现已形成 MPEG Layer 1、Layer 2、Layer 3三个音频编码解码方案。MPEG Layer 3压缩率可达1:10至1:12，1M的MP3文件可播放1分钟，而1分钟CD音质的WAV文件（44100Hz，16bit，双声道，60秒）要占用 10M空间，这样算来，一张650M的MP3光盘播放时间应在10小时以上，而同样容量的一张CD盘播放时间在70分钟左右。MP3的优势是CD难以比拟的。-File compression technology with each passing day makes the MP3 music format to become among the most hot, high-quality music quickly spread with the arrangement of 0 and 1 around the world, to stir the hearts. What is MP3? The full name of the MP3 is MPEG Audio Layer 3, it is a highly effective computer audio coding scheme, a larger compression than audio files into smaller extension. MP3 file, keeping the sound quality of the original file. MP3 is part of the ISO/MPEG standard, ISO/MPEG standard describes the use of high performance perceptual coding scheme audio compression, this standard has been continuously updated to meet the high-quality small amount of pursuit, has been the formation of the MPEG Layer 1, Layer 2, Layer 3, three audio encoding and decoding programs. MPEG Layer 3 compression ratio up to 1:10 to 1:12,1 M MP3 files can be played one minute, one minute of CD-quality WAV file (44100Hz, 16bit, dual-channel, 60 seconds) to take up 10M of space, so calculation, a 650M
Platform: | Size: 92160 | Author: 魔将 | Hits:

[Speech/Voice recognition/combine] speechfeaextra1

Description: Short introduction to speech feature extraction code: Step 1: Create speech features: If you have a one stereo file with each speaker in one channel use: features = speech_features_stereo( demo.wav ) If you are using several mono audio files use (the audio files have to be synchronized): speech_features_separate_files({ file1.wav , file2.wav , file3.wav }) Both functions are wrappers to process the individual audio streams. The main purpose is to calculate the overall rms (wavrms.m) as input for the actual features extraction.-Short introduction to speech feature extraction code: Step 1: Create speech features: If you have a one stereo file with each speaker in one channel use: features = speech_features_stereo( demo.wav ) If you are using several mono audio files use (the audio files have to be synchronized): speech_features_separate_files({ file1.wav , file2.wav , file3.wav }) Both functions are wrappers to process the individual audio streams. The main purpose is to calculate the overall rms (wavrms.m) as input for the actual features extraction.
Platform: | Size: 3072 | Author: nadeem | Hits:

[Other] music

Description: *表示最高音 h表示高音 m表示中音 l表示低音 与其控制的音符构成音高，决定发音频率，音高的后面是音长，可以用整数或小数输入以控制时间，但中间必须用空各隔开。 乐谱文件的得最前面是一个整数，白噢是音长基数，一般为300 600 900 1200ms；乐谱文件最后世结束符 “##” ，以表示乐谱文件的结束。 程序对读入的乐谱进行翻译， 确定每个乐音的频率和声长， 每个音的音长=音长基数*节拍数，其中技术是乐谱文件的第一个字符。 由于DOS下用来发声的sound函数只能以频率作为参数，所以要完成音符到频率的翻译，没个音的音频可用以模拟频率值输入。-* said top note H says soprano M says alto L said bass Instead of controlling the notes form pitch, decided to sound frequency, pitch is behind the duration, can use the integer or decimal input to control the time, but must be separated with empty each in the middle. Music files to the front is an integer, white base, oh is duration generally is 300 600 300 1200 ms Music file finally the terminator \"##\", to indicate the end of the music files. For translation program to read music, make sure each tone frequency harmonic long, the length of each sound = length base* ticks, the first character technology is music files. Due to DOS can only be used for voice sound function with frequency as parameter, so to complete the notes to the frequency of the translation, not a sound audio input can be used to simulate the frequency value.
Platform: | Size: 1024 | Author: | Hits:

[matlab] Audio-denoising-deepa

Description: 1. Extract files and run Audio_denoise_main.m file folder... 2. Click on Load & play Audio file and Original sound.wav file 3. Then using slider AWGN (White gauusion noise)...it is vary 1 to 10 set it to 10.. 4. now click on Add Noise and play... 5. u can save noisy signal by save noisy signal tab... 6. now wavelet... 7. thresholding.. 8. now click on Denoise and play....wait for some time...this will take 25 sec time 9. now save that denoised signal...and record all output parameters... 10. now click on clear all and exit-1. Extract files and run Audio_denoise_main.m file folder... 2. Click on Load & play Audio file and Original sound.wav file 3. Then using slider AWGN (White gauusion noise)...it is vary 1 to 10 set it to 10.. 4. now click on Add Noise and play... 5. u can save noisy signal by save noisy signal tab... 6. now wavelet... 7. thresholding.. 8. now click on Denoise and play....wait for some time...this will take 25 sec time 9. now save that denoised signal...and record all output parameters... 10. now click on clear all and exit
Platform: | Size: 1990656 | Author: arjun | Hits:

[Audio program] Linear-Predictive-Coder-master

Description: Linear-Predictive-Coder MATLAB Implementation of LPC algorithm for speech signal # Why LPC? In communication systems it is often necessary to transmit audio(speech) signal in compressed or encoded form because of bandwidth limitation of the channel. In this regard, ‘Linear predictive coding(LPC)’ is an effctive method of speech coding at a low bit-rate. # Features ** Analysis/Encoding phase,Synthesis/Decoding phase. **Human voice modelled with all-pole filter. ** LPC parameters(filter coefficients, pitch, gain etc) extraction at the decoding phase. ** Non-overlapping frames of 30 milliseconds in duration # How To Run ** Make sure MATLAB(latest version) is installed ** Put both files(LPC.m with .mp3 file) in the same folder ** Open LPC.m file and run it. ## Comments Different audio (.mp3) files can be coded/decoded by changing the input file name in the code.
Platform: | Size: 2048 | Author: japaoli | Hits:
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