AUDIO ENCODER, AUDIO DECODER, SYSTEM, METHOD, AND COMPUTER PROGRAM USING INCREASED TEMPERATURE RESOLUTION IN TEMPERATURE PROXIMITY OF ON-SET OR OFFSET OF FLUSION OR BRUSTING

摘要

An audio encoder for providing audio information encoded based on input audio information, a bandwidth extension information providing unit configured to provide bandwidth extension information using variable time resolution, and a friction sound or And a detection unit configured to detect onset of the rupture sound. The audio encoder is at least a predetermined period prior to the point at which a frictional or smashing onset is detected, and a predetermined period following the point at which a squeaking or smashing onset is detected. It is configured to adjust the time resolution used by the bandwidth extension information provider so that the bandwidth extension information is provided with an increased time resolution. Alternatively or additionally, the bandwidth extension information is provided with an increased time resolution of the bandwidth extension information in response to detection of a frictional sound or a crushing offset. Audio encoders and methods make use of corresponding concepts. [Selection] Figure 1