Efficient Coding of Excitation Patterns Combined with a Transform Audio Coder
Niemeyer O, Edler B (2005)
Publication Type: Conference contribution
Publication year: 2005
Pages Range: Preprint 6466
Conference Proceedings Title: 118th AES Convention
URI: https://aes2.org/publications/elibrary-page/?id=13182
Abstract
An efficient encoding of excitation patterns designed for bit rates between 4 and 10 kbit/s is presented. It is based on a two dimensional transform of the excitation patterns in frequency and time direction, followed by a bit plane encoding of the resulting transform coefficients. The bit plane encoding ensures, that all significant coefficients are captured, both for excitation patterns resulting from more tonal and transient like audio signals. In such a way, coded excitation patterns can be used in a scalable noise coder, but also can substitute the scale factors, which usually control the quantisation in subband/transform audio coders. A subband/transform audio coding scheme is presented, which combines these two applications in one system.
Authors with CRIS profile
Involved external institutions
Germany (DE)How to cite
APA:
Niemeyer, O., & Edler, B. (2005). Efficient Coding of Excitation Patterns Combined with a Transform Audio Coder. In 118th AES Convention (pp. Preprint 6466).
MLA:
Niemeyer, Oliver, and Bernd Edler. "Efficient Coding of Excitation Patterns Combined with a Transform Audio Coder." Proceedings of the 118th AES Convention 2005. Preprint 6466.
BibTeX: Download