Patent ID: 9495974
Filing Date: 2016-11-15
CPC Classification: G10L,H04R

Claim Text:
1. A method of processing a sound track, comprising the steps of: (1) providing a low frequency threshold and a high frequency threshold of an audible frequency range; (2) selecting a low-pitch sound band from a lowest frequency of an original sound track to the low frequency threshold and raising the low-pitch sound band by a predetermined frequency shift to a modified low-pitch sound band, or selecting a high-pitch sound band from the high frequency threshold to the highest frequency of the original sound track and lower the high-pitch sound band by a predetermined frequency shift to a modified high-pitch sound band; and (3) combining the original sound track and the modified low-pitch sound band or combining the original sound track and the modified high-pitch sound band, wherein the low frequency threshold and the high frequency threshold are not correlated, and the predetermined frequency shift is one or multiple octaves, or the predetermined frequency shift is 2