System and method for variable decorrelation of audio signals

摘要

Various embodiments relate to a system and method for decorrelating an audio signal with a hybrid filter. The hybrid filter is generated by first generating a decorrelation filter. A frequency-dependent warping is applied to the decorrelation filter. The warped decorrelation filter is then mixed with a carrier filter to generate the hybrid filter. The carrier filter may include filters for spatial processing of an audio signal, filters for upmixing an audio signal, and/or filters for downmixing an audio signal.

主权项

1. A method for decorrelating an audio signal, comprising:
generating a decorrelation filter; applying a frequency-dependent warping to the decorrelation filter to generate a warped decorrelation filter, wherein the frequency-dependent warping applies a frequency-dependent weighting to the phase of the decorrelation filter; mixing the warped decorrelation filter with a carrier filter to generate a hybrid filter; and processing an audio signal with the hybrid filter.