diff options
Diffstat (limited to 'gr-vocoder/lib/codec2/lpc.h')
| -rw-r--r-- | gr-vocoder/lib/codec2/lpc.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gr-vocoder/lib/codec2/lpc.h b/gr-vocoder/lib/codec2/lpc.h index 9125189d1b..482aa1fff5 100644 --- a/gr-vocoder/lib/codec2/lpc.h +++ b/gr-vocoder/lib/codec2/lpc.h @@ -9,7 +9,7 @@ \*---------------------------------------------------------------------------*/ /* - Copyright (C) 2009 David Rowe + Copyright (C) 2009-2012 David Rowe All rights reserved. @@ -30,9 +30,10 @@ #define LPC_MAX_ORDER 20 +void pre_emp(float Sn_pre[], float Sn[], float *mem, int Nsam); +void de_emp(float Sn_se[], float Sn[], float *mem, int Nsam); void hanning_window(float Sn[], float Wn[], int Nsam); void autocorrelate(float Sn[], float Rn[], int Nsam, int order); -void autocorrelate_freq(float Pw[], float w[], float R[], int Nsam, int order); void levinson_durbin(float R[], float lpcs[], int order); void inverse_filter(float Sn[], float a[], int Nsam, float res[], int order); void synthesis_filter(float res[], float a[], int Nsam, int order, float Sn_[]); |