diff options
| author | ymherklotz <ymherklotz@gmail.com> | 2018-03-08 10:40:12 +0000 |
|---|---|---|
| committer | ymherklotz <ymherklotz@gmail.com> | 2018-03-08 10:40:12 +0000 |
| commit | 710cee614e158cc69b80bf9f82a3989f7c9c6bdf (patch) | |
| tree | 0e78913fa9896b7e06be4504196c166f406a6f99 | |
| parent | fd66f91b4b04f45a9c36864f73988b8881ce7692 (diff) | |
| download | NoiseSilencer-710cee614e158cc69b80bf9f82a3989f7c9c6bdf.tar.gz NoiseSilencer-710cee614e158cc69b80bf9f82a3989f7c9c6bdf.zip | |
Adding k
| -rw-r--r-- | Project/RTDSP/enhance.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/Project/RTDSP/enhance.c b/Project/RTDSP/enhance.c index 0ee84ff..095bb48 100644 --- a/Project/RTDSP/enhance.c +++ b/Project/RTDSP/enhance.c @@ -80,11 +80,6 @@ DSK6713_AIC23_Config Config = { \ /**********************************************************************/ }; -typedef struct { - complex *spec; - float mag_avg; -} Spectrum; - // Codec handle:- a variable used to identify audio interface DSK6713_AIC23_CodecHandle H_Codec; @@ -101,7 +96,9 @@ volatile int frame_ctr =0; volatile float lambda = 0.05; volatile float alpha = 20; double avg = 0; -Spectrum M[NUM_M]; +float *M[NUM_M]; +float K; +float time_constant = 50E-6; /* Time constant in ms */ /******************************* Function prototypes *******************************/ void init_hardware(void); /* Initialize codec */ void init_HWI(void); /* Initialize hardware interrupts */ @@ -138,7 +135,7 @@ void main() outwin[k] = inwin[k]; } ingain=INGAIN; - outgain=OUTGAIN; + outgain=OUTGAIN; for (k = 0; k < NUM_M; ++k) { @@ -150,6 +147,9 @@ void main() M[k].spec[i].i = MAX_FLOAT; } } + + // initializing the value to estimate the low pass filter + K = exp(- TFRAME / time_constant); /* main loop, wait for interrupt */ |