Investigation of Improved Masking Noise for the Speech Privacy

DSpace/Manakin Repository

Investigation of Improved Masking Noise for the Speech Privacy

Show full item record

Title: Investigation of Improved Masking Noise for the Speech Privacy
Author(s):
Cho, Allen;
0000-0002-0307-3331
Advisor: Panahi, Issa M. S.
Date Created: 2016-12
Format: Thesis
Keywords: Auditory masking
Psychoacoustics
Privacy
Speech processing systems
Abstract: Many sound masking products for the purpose of achieving speech privacy have emerged on the market in recent years. Over the time, quality of the masking noise has been improved a lot and still is studied for a better method. This thesis introduces a new way of generating masking noise which outperforms the commonly used methods. Using Adaptive Linear Predictive Coding (LPC) we can derive the model for various target sound and create a new masking signal which has exactly the same spectral envelope of the target sound and different phase. Two important aspects in evaluating the performance quality of the masking noise are masking capability and pleasantness. By testing these criteria in objective and subjective ways, we show superior performance of the proposed adaptive method in comparison with several existing techniques.
Degree Name: MSCS
Degree Level: Masters
Persistent Link: http://hdl.handle.net/107351/5352
Type : text
Degree Program: Computer Science

Files in this item

Files Size Format View
CHO-THESIS-2016.pdf 1.500Mb PDF View/Open

This item appears in the following Collection(s)


Show full item record