One frame of the speech signal (1024) of the sinusoidal signal to DCT DCT, comparative experiments FIG. Modify experimental code, set the threshold value, the absolute value is smaller than the threshold value is set to 0, then the inverse transform to see the waveform.

DCTxiangguan\exp05_dct\Exp-DCT-AD\cc_build_Debug.log
............\.........\..........\Debug\Exp-DCT-AD.obj
............\.........\..........\.....\Exp-DCT-AD.out
............\.........\..........\Debug.lkf
............\.........\..........\Debug.lkv
............\.........\..........\Exp-DCT-AD.paf
............\.........\..........\Exp-DCT-AD.pjt
............\.........\Exp-DCT-AD.c
............\.........\Exp-DCT-AD.cmd
............\.........\MATH.H
............\.........\MMRegs.h
............\.........\RTS.LIB
............\.........\TYPEDEF.H
............\....6_Correlation\Exp-COR-AD\cc_build_Debug.log
............\.................\..........\Debug\Exp-COR-AD.obj
............\.................\..........\.....\Exp-COR-AD.out
............\.................\..........\Debug.lkf
............\.................\..........\Debug.lkv
............\.................\..........\Exp-COR-AD.paf
............\.................\..........\Exp-COR-AD.pjt
............\.................\Exp-COR-AD.c
............\.................\Exp-COR-AD.cmd
............\.................\MATH.H
............\.................\MMRegs.h
............\.................\RTS.LIB
............\.................\TYPEDEF.H
............\....5_dct\Exp-DCT-AD\Debug
............\....6_Correlation\Exp-COR-AD\Debug
............\....5_dct\Exp-DCT-AD
............\....6_Correlation\Exp-COR-AD
............\exp05_dct
............\exp06_Correlation
DCTxiangguan

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