Method and a decoder for attenuation of signal regions reconstructed with low accuracy

摘要

The embodiments of the present invention improves conventional attenuation schemes by replacing constant attenuation with an adaptive attenuation scheme that allows more aggressive attenuation, without introducing audible change of signal frequency characteristics.

主权项

1. A method for a decoder for attenuating an audio signal, the method comprising:
determining a width of a continuous spectral region, the continuous spectral region comprising spectral regions of the audio signal to be attenuated and coded with either a low number of bits or with no bits assigned; and attenuating the audio signal by applying an attenuation of the continuous spectral region adaptive to the width such that an increased width decreases the attenuation of the continuous spectral region.