G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/02 (2006.01) G10L 21/02 (2006.01)
Patent
CA 2718865
A method for optimization of rate-distortion for Advanced Audio Coding (AAC). The method provides for the identification of quantized spectral coefficient sequences for optimization of rate-distortion. The method also provides joint optimization of scale factors, Huffman codebooks and quantized spectral coefficient sequences for minimization of a rate-distortion cost. The method provides an iterative rate-distortion optimization algorithm for AAC encoding. In each iteration, the method first finds the optimal scale factors and quantized spectral coefficients when Huffman codebooks are fixed, then updates Huffman codebooks and quantized spectral coefficients given the optimized scale factors. The iterations may be applied until a predetermined threshold is attained.
Wang Longji
Wu Guixing
Yang En-Hui
Research In Motion Limited
Ridout & Maybee Llp
LandOfFree
Rate-distortion optimization for advanced audio coding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rate-distortion optimization for advanced audio coding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rate-distortion optimization for advanced audio coding will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1864216