Logarithmic Adaptive Quantization Projection for Audio Watermarking

Adaptive Wavelet Quantization Index Modulation Technique for Audio Watermarking

The quantization index modulation (QIM) that is often used in watermarking can provide a tradeoff between robustness and transparency. In this paper, we propose a robust audio watermarking technique which adopts the wavelet QIM method with adaptive step sizes for blind watermark extraction. Since wavelet transform offers both temporal and frequency resolutions, it is suitable for audio signal p...

Adaptive quantization watermarking

In this paper we study the use of an adaptive quantization step size, instead of a fixed one, for the Scalar Costa Scheme. We propose an adaptation method based on Weber’s law. This allows for a more effective embedding, which is also shown to render the watermark robust against sample value scaling. A model for the bit error probability due to the estimation of the adaptive quantization step s...

Adaptive Audio Watermarking Scheme for Copyright Protection

Adaptive Quantization Index Modulation Audio Watermarking based on Fuzzy Inference System

Many of the adaptive watermarking schemes reported in the literature consider only local audio signal properties. Many schemes require complex computation along with manual parameter settings. In this paper, we propose a novel, fuzzy, adaptive audio watermarking algorithm based on both global and local audio signal properties. The algorithm performs well for dynamic range of audio signals witho...

An Audio Watermarking Algorithm using Encryption, Transformations and Quantization

The central idea of this paper is to propose a robust audio watermarking algorithm using statistical parameters and energy of the signal in the discrete wavelet domain and also using discrete cosine transform. The performance of the algorithm is provided by evaluating the performance parameters such as signal to noise ratio, normalized correlation, and bit error rate. In addition, the effects o...