fs.h
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上传日期:2021-12-16
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- /*
- 2.4 kbps MELP Proposed Federal Standard speech coder
- version 1.2
- Copyright (c) 1996, Texas Instruments, Inc.
- Texas Instruments has intellectual property rights on the MELP
- algorithm. The Texas Instruments contact for licensing issues for
- commercial and non-government use is William Gordon, Director,
- Government Contracts, Texas Instruments Incorporated, Semiconductor
- Group (phone 972 480 7442).
- */
- /*
-
- fs.h: Fourier series functions include file
- */
- void fft(float *datam1,int nn,int isign);
- void find_harm(float input[], float mag[],float pitch,int num_harm,int length);
- int findmax(float input[], int npts);
- void idft_real(float real[], float signal[], int length);