The Internet Sound Restoration Service Based on the Perceptual Denoising Method

摘要

The Internet service was launched intended to on-demand restoration and publishing of audio content related to world's cultural heritage. A special way of acquiring, processing and publishing archive recordings was conceived in order to ensure a proper dissemination of the proposed service and its long-term maintenance. The sound enhancement method underlying the system operation employs the extended perceptual coding of audio material allowing for simultaneous noise reduction and sound compression. Moreover, the non-linear predictor employing neural networks was applied to the detection and removal of impulse distortions. The system is still in the development phase, thus both: system features implemented already and technical assumptions related to its further development are presented in the paper.