Back to results
US 2018/0322886 A1Published application
Audio encoder and decoder
AssigneeDolby International AB
InventorsLars VILLEMOES, Janusz KLEJSA, Per HEDELIN
Life of this patent
Estimating the term…
Abstract
The present document relates an audio encoding and decoding system (referred to as an audio codec system). In particular, the present document relates to a audio codec system which is particularly well suited for voice encoding/decoding. A transform-based speech encoder is configured to encode a speech signal into a bitstream is described. A speech decoder configured to decode audio signals from a bitstream is further described.
Claims2
1) A method for decoding an encoded audio signal in a bitstream, the method comprising:
- determining prediction coefficients based on coefficient data comprised within the bitstream to determine quantized prediction coefficients;
- inversely quantizing the quantized prediction coefficients to determine dequantized prediction coefficients;
- and
- determining a plurality of spectral energy values for a corresponding plurality of frequency bands based on the dequantized prediction coefficients.
1 more element
Dependencies are inferred from the claim text.