Zero-Bit Transmission of Adaptive Pre- and De-emphasis Filters for Speech and Audio Coding

Autor:	Piralideh, Niloofar Omidi, Gournay, Philippe, Lefebvre, Roch
Rok vydání:	2024
Předmět:	Electrical Engineering and Systems Science - Audio and Speech Processing Electrical Engineering and Systems Science - Signal Processing
Druh dokumentu:	Working Paper
DOI:	10.1109/TSP63128.2024.10605936
Popis:	This paper introduces a novel adaptation approach for first-order pre- and de-emphasis filters, an essential tool in many speech and audio codecs to increase coding efficiency and perceived quality. The proposed zero-bit self-adaptation approach differs from classical forward and backward adaptation approaches in that the de-emphasis coefficient is estimated at the receiver, from the decoded pre-emphasized signal. This eliminates the need to transmit information that arises from forward adaptation as well as the signal-filter lag that is inherent in backward adaptation. Evaluation results show that the de-emphasis coefficient can be estimated accurately from the decoded pre-emphasized signal and that the proposed zero-bit self-adaptation approach provides comparable subjective improvement to forward adaptation. Comment: This paper has been accepted by the 47th International Conference on Telecommunications and Signal Processing (TSP 2024)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2407.02672 Zobrazit plný text záznamu View this record from Arxiv