Patent ID: 11894007
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. The method of claim 2, further comprising calculating the average normalized pitch correlation as:

Voicing=[R1(P1)+R2(P2)+R3(P3)+R4(P4)]/4,

wherein Voicing is the average normalized pitch correlation, wherein R1(P1), R2(P2), R3(P3), and R4(P4) are four normalized pitch correlations calculated for four subframes of the current frame, wherein P1, P2, P3, and P4 are four pitch candidates found in a pitch range from PIT_MIN to PIT_MAX and respectively corresponding to R1(P1), R2(P2), R3(P3), wherein PIT_MIN is the first minimum pitch limitation, and wherein PIT_MAX is a pitch limitation greater than the first minimum pitch limitation.