Please use this identifier to cite or link to this item:
http://dspace.cityu.edu.hk/handle/2031/5318Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Lau, Leong Yuen | en_US |
| dc.date.accessioned | 2008-12-10T01:23:56Z | |
| dc.date.accessioned | 2017-09-19T09:11:01Z | |
| dc.date.accessioned | 2019-02-12T07:28:09Z | - |
| dc.date.available | 2008-12-10T01:23:56Z | |
| dc.date.available | 2017-09-19T09:11:01Z | |
| dc.date.available | 2019-02-12T07:28:09Z | - |
| dc.date.issued | 2008 | en_US |
| dc.identifier.other | 2008eelly678 | en_US |
| dc.identifier.uri | http://144.214.8.231/handle/2031/5318 | - |
| dc.description.abstract | This project is to investigate and embed a mechanism to the MP3 encoder, so that the watermark information can be added in a MP3 file. In addition, this mechanism can detect the watermark information in the MP3 decoder. To complete this project, source codes (C program) of the MP3 encoder and decoder are needed. Then, in the encoder, the quantized MDCT frequency samples in the iteration loop are selected out. Signal to noise ratio (SNR) are calculated using those frequency samples. By the comparisons of SNR and quantization bits in two consecutive MP3 frames. Watermark information is added to certain samples. This report contained the brief idea on this watermark adding method. In addition, the concepts behind this method are also discussed. Then, the sound qualities of MP3 files (with watermark) are analyzed. At last, the watermark security of this mechanism is discussed. | en_US |
| dc.rights | This work is protected by copyright. Reproduction or distribution of the work in any format is prohibited without written permission of the copyright owner. | en_US |
| dc.rights | Access is restricted to CityU users. | en_US |
| dc.title | Audio watermarking | en_US |
| dc.contributor.department | Department of Electronic Engineering | en_US |
| dc.description.supervisor | Supervisor: Dr. Chan, Stanley C F.; Assessor: Dr. Cheng, L M | en_US |
| Appears in Collections: | Electrical Engineering - Undergraduate Final Year Projects | |
Files in This Item:
| File | Size | Format | |
|---|---|---|---|
| fulltext.html | 146 B | HTML | View/Open |
Items in Digital CityU Collections are protected by copyright, with all rights reserved, unless otherwise indicated.