DOLBY INTERNATIONAL AB (20250124934). MULTI-LAG FORMAT FOR AUDIO CODING
MULTI-LAG FORMAT FOR AUDIO CODING
Organization Name
Inventor(s)
Lars Villemoes of Stockholm SE
Heidi-Maria Lehtonen of Stockholm SE
Heiko Purnhagen of Sundbyberg SE
Per Henrik Hedelin of Göteborg SE
MULTI-LAG FORMAT FOR AUDIO CODING
This abstract first appeared for US patent application 20250124934 titled 'MULTI-LAG FORMAT FOR AUDIO CODING
Original Abstract Submitted
described herein is a method of encoding an audio signal. the method comprises: generating a plurality of subband audio signals based on the audio signal; determining a spectral envelope of the audio signal; for each subband audio signal, determining autocorrelation information for the subband audio signal based on an autocorrelation function of the subband audio signal; and generating an encoded representation of the audio signal, the encoded representation comprising a representation of the spectral envelope of the audio signal and a representation of the autocorrelation information for the plurality of subband audio signals. further described are methods of decoding the audio signal from the encoded representation, as well as corresponding encoders, decoders, computer programs, and computer-readable recording media.