Matlab_MPEG

所属分类:模式识别(视觉/语音等)
开发工具:matlab
文件大小:26KB
下载次数:72
上传日期:2006-03-29 09:48:30
上 传 者vivian03
说明:  matlab的MPEG编程程序,简单明了,容易理解和上手操作。
(Matlab programming, simple, easy to understand and operate the business.)

文件列表:
Analysis_subband_filter.m (2802, 2001-07-07)
Common.m (1939, 2001-07-07)
Decimation.m (5098, 2001-07-07)
FFT_Analysis.m (3024, 2001-07-07)
Find_tonal_components.m (5784, 2003-08-11)
Global_masking_threshold.m (2546, 2001-07-07)
Individual_masking_thresholds.m (4851, 2002-07-18)
Minimum_masking_threshold.m (1947, 2001-07-07)
Mod.m (422, 2001-07-07)
Scale_factors.m (3298, 2001-07-07)
Sound_pressure_level.m (2268, 2001-07-07)
Table_absolute_threshold.m (6627, 2001-07-07)
Table_analysis_window.m (12832, 2001-07-07)
Table_critical_band_boundaries.m (1919, 2001-07-07)
Test_MPEG.m (3625, 2001-07-07)

MPEG psychoacoustic model I for MATLAB - Version 1.2.8 ------------------------------------------------------ Fabien A. P. Petitcolas University of Cambridge, England. w+fapp2@cl.cam.ac.uk, www.cl.cam.ac.uk/~fapp2/ This is an implementation of the MPEG psychoacoustic model 1, layer I, for MATLAB. It has been tested on MATLAB 5.2 running on Windows NT. All you have to do is to copy the “.m” files into a directory and call the “Test_MPEG” routine from MATLAB. Feel free to modify this routine in order to use your own sample signal. The “Common.m” file contains some global variables used by other functions. In particular you can set or reset the “DRAW” variable which tells whether graphs should be displayed at each steps of the process; this is very useful if you want to _see_ how MPEG works. This implementation is based on Information technology -- Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s -- Part 3: audio. British Standard, BSI, London. First edition 1993-08-01. October 1993. Implementation of ISO/IEC 11172-3:1993. ISBN 0-580-22594-1 This implementation is available from: www.cl.cam.ac.uk/~fapp2/software/mpeg/ --- Acknowledgements: - When this software was first written, the author was a Ph.D student supported by the Intel Corporation under the grant “robustness of information hiding”. - Michael Arnold (arnold@igd.fhg.de), Fraunhofer Institute for Computer Graphics (IGD), for reviewing the code and pointing out several errors. - Kiryung Lee (kiryung@etri.re.kr), Electronics and Telecommunications Research Institute, Korea. - Jonas Ekman (jonas@cutting-room.se) - Ashok Raj Kumaran Mariappan (kumaran@ipsi.fhg.de) --- Copyright (c) 19***--2003, Fabien A. P. Petitcolas, University of Cambridge, England. Redistribution and use in source and binary forms, with or without modification, are permitted for non commercial research and academic use only, provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Each individual file must retain its own copyright notice. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions, the following disclaimer and the list of contributors in the documentation and/or other materials provided with the distribution. - Modification of the program or portion of it is allowed provided that the modified files carry prominent notices stating where and when they have been changed. If you do modify this program you should send to the contributors a general description of the changes and send them a copy of your changes at their request. By sending any changes to this program to the contributors, you are granting a license on such changes under the same terms and conditions as provided in this license agreement. However, the contributors are under no obligation to accept your changes. - If you use this software for your research, please cite: Fabien A. P. Petitcolas, MPEG psychoacoustic model I for MATLAB, www.cl.cam.ac.uk/~fapp2/software/mpeg/ THIS SOFTWARE IS NOT INTENDED FOR ANY COMMERCIAL APPLICATION AND IS PROVIDED ‘AS IS’, WITH ALL FAULTS AND ANY EXPRESS OR IMPLIED REPRESENTATIONS OR WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. This computer program is based on ISO/IEC 11172-3:1993, Information technology -- Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s -- Part 3: Audio, with the permission of ISO. Copies of this standards can be purchased from the British Standards Institution, 389 Chiswick High Road, GB-London W4 4AL, Telephone:+ 44 181 996 90 00, Telefax:+ 44 181 996 74 00 or from ISO, postal box 56, CH-1211 Geneva 20, Telephone +41 22 749 0111, Telefax +4122 734 1079. Copyright remains with ISO. Last modified: 11 August 2003

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