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AssigneesDolby Laboratories Licensing Corporation, Dolby International AB
InventorsHeiko Purnhagen, Leif Sehlstrom, Lars Villemoes, Glenn N. Dickins, Mark S Vinton
Estimating the term…
An audio communication endpoint receives a bitstream containing spectral components representing spectral content of an audio signal, wherein the spectral components relate to a first range extending up to a first break frequency, above which any spectral components are unassigned. The endpoint adapts the received bitstream in accordance with a second range extending up to a second break frequency by removing spectral components or adding neutral-valued spectral components relating to a range between the first and second break frequencies. The endpoint then attenuates spectral content in a neighbourhood of the least of the first and second break frequencies for thereby achieving a gradual spectral decay. After this, reconstructing the audio signal is reconstructed by an inverse transform operating on spectral components relating to said second range in the adapted and attenuated received bitstream. At small computational expense, the endpoint may to adapt to different sample rates in received bitstreams.
A method of exchanging bitstreams, comprising:
A system comprising:
A non-transitory computer-readable medium storing instructions that, upon execution by a server including one or more processors, cause the one or more processors to perform operations comprising:
Dependencies are inferred from the claim text.