Audio-watermarking with stereo signals
In this paper, we propose a non-blind audiowatermarking scheme based on compression-expansion of stereo signals. We also demonstrate the general methods for embedding binary code in single channel signals and stereo signals even though there is only one possible state change. The proposed audi...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2009
|
| Online Access: | https://hdl.handle.net/10356/90927 http://hdl.handle.net/10220/4688 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | In this paper, we propose a non-blind audiowatermarking scheme based on compression-expansion of stereo
signals. We also demonstrate the general methods for embedding binary code in single channel signals and stereo signals even
though there is only one possible state change. The proposed audio-watermarking method makes use of compression-expansion of adjacent frames of samples of the
audio signal. Some frames of the signal are thus ‘distorted’. The distorted frames can be readily identified by comparing them
with the original signal. The distorted frames can be used to embed hidden information. By applying psychoacoustic model in the compression-expansion process, it is found that the distortion
is hardly discernable. The performance of the method under several types of
attacks is assessed. It is found that when stereo signals are used, higher percentage of recovery can be achieved than when single
channel signals. |
|---|