Year: 2005
Type: other
Abstract: Embedded lossless audio coding is a technique for embedding a perceptual audio coding bitstream within a lossless audio coding bitstream. This paper provides an investigation into a lossless embedded audio coder based on the AAC coder and utilising both backward Linear Predictive Coding (LPC) and cascade coding. Cascade coding is a technique for entropy coding of large dynamic range integer sequences that has the advantage of simple implementation and low complexity. Results show that employing LPC in an embedded architecture achieves approximately an 8% decrease in the coding rate. The overall compression performance of cascade coding closely follows Rice coding, a popular entropy coding method for lossless audio. It is also shown that performance can be further improved by incorporating a start of the art lossless coder into the proposed embedded coder.
Authors: Kevin Adistambha (20117340), Christian Ritz (19582933), Jason Lukasiak (20159460)
Language: English
Subfield: Computer Vision and Pattern Recognition
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7000125416