REVIEW OF METHODS FOR EMBEDDING DIGITAL WATERMARKS FOR AUDIO FILE PROTECTION

The article presents an analysis of modern approaches to audio information protection using digital watermarks. It discusses various watermark embedding methods, including those based on the time, frequency, and timefrequency domains. Special attention is given to the characteristics of watermark robustness and imperceptibility, which are critical for ensuring high sound quality and reliable protection against attacks. Methods based on transformations, such as the discrete cosine transform (DCT), as well as adaptive approaches that take into account the properties of audio files, are analyzed. The article also provides an overview of criteria for evaluating the effectiveness of watermarking methods, such as signal-to-noise ratio (SNR) and detection probability. The conclusions of the study emphasize the need for careful selection of methods to achieve an optimal balance between protection, sound quality, and resistance to manipulation.