US 12,335,679 B2
Audio signal processing method, terminal device and storage medium
Zongxia Zhu, Shandong (CN); Kang An, Shandong (CN); Jie Wu, Shandong (CN); Kaifa Shu, Shandong (CN); Feifei Han, Shandong (CN); Zheng Yang, Shandong (CN); and Dingyun Li, Shandong (CN)
Assigned to GOERTEK INC., Weifang (CN)
Appl. No. 18/044,921
Filed by GOERTEK INC., Shandong (CN)
PCT Filed Oct. 31, 2020, PCT No. PCT/CN2020/125633
§ 371(c)(1), (2) Date Mar. 10, 2023,
PCT Pub. No. WO2022/052256, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 202010953528.6 (CN), filed on Sep. 10, 2020.
Prior Publication US 2023/0276165 A1, Aug. 31, 2023
Int. Cl. H04R 25/00 (2006.01); G10L 15/02 (2006.01); H04R 1/10 (2006.01); H04R 1/22 (2006.01)
CPC H04R 1/1091 (2013.01) [G10L 15/02 (2013.01); H04R 1/222 (2013.01); H04R 2460/13 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An audio signal processing method, wherein, the audio signal processing method comprises:
acquiring a bone conduction audio signal collected by a bone conduction vibration pickup device;
acquiring a low frequency transfer function which matches the bone conduction audio signal and a high frequency transfer function corresponding to the low frequency transfer function, wherein the low frequency transfer function and the high frequency transfer function are corresponding transfer functions between the bone conduction audio signal and an air conduction audio signal which correspond to the same voice; and
performing frequency domain extension on the bone conduction audio signal on the basis of the low frequency transfer function and the high frequency transfer function, and taking the extended initial audio as output audio.