Fidelity Estimation of Watermarked Audio Signals According to the ITU-R BS.1116-1 Standard |
| Z. Piotrowski and P. Gajewski
Telecommunications Institute, Military University of Technology, gen. S. Kaliskiego 2, 00-908 Warsaw, Poland |
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| The paper describes the method that enables to measure acoustic fidelity of audio signals degraded with digital watermarks. Fidelity measurements of degraded acoustic signals is suitable for such applications as distinguishing whether the acoustic record is signed with a digital watermark (watermarked) or not as well as evaluation of the degradation degree affecting the host signal. The test of subjective assessment according to the recommendation ITU BS.1116-1 is the standard that served as the basis for implementation of a dedicated application within the Matlab environment and for development of the concept how to make this application available as an IP network service to enable assessment of degraded signal by a wider auditorium. |
| DOI: 10.12693/APhysPolA.121.A-82 PACS numbers: 43.75.Zz, 43.72.Uv, 43.66.-x, 43.66.+y |