Patent ID: 9431020
Filing Date: 2016-08-30
CPC Classification: G10L

Claim Text:
1. Audio decoder for decoding an encoded original audio signal, the encoded original audio signal comprising a lowband signal and one or more coded spectral lines, comprising: a line decoder configured to decode the one or more coded spectral lines; a decoder for decoding the encoded original audio signal to produce the lowband signal; a high frequency reconstruction processor configured to perform a high frequency reconstruction processing by extrapolating the lowband signal to obtain a highband signal, wherein the decoded one or more spectral lines correspond to one or more differences between the original audio signal and the highband signal; and a combiner configured to combine the decoded one or more spectral lines, the highband signal, and the lowband signal to obtain a decoded audio signal; wherein one or more of the line decoder, the high frequency reconstruction processor, and the combiner are implemented, at least in part, by one or more hardware elements of the audio decoder.