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| author | unknown <dm2515@eews303a-004.ic.ac.uk> | 2018-03-05 11:32:57 +0000 |
|---|---|---|
| committer | unknown <dm2515@eews303a-004.ic.ac.uk> | 2018-03-05 11:32:57 +0000 |
| commit | fcaf88ac27152cf3c553fb5976ce2aed3b64f6f2 (patch) | |
| tree | 8acaa55d8bae3429c446f68f9f3fc0670404a207 /Project/RTDSP/frame.c | |
| parent | 940fc1e52823dfdeb635e07fa161d98ab283bc0b (diff) | |
| download | NoiseSilencer-fcaf88ac27152cf3c553fb5976ce2aed3b64f6f2.tar.gz NoiseSilencer-fcaf88ac27152cf3c553fb5976ce2aed3b64f6f2.zip | |
EX2 code
Diffstat (limited to 'Project/RTDSP/frame.c')
| -rw-r--r-- | Project/RTDSP/frame.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/Project/RTDSP/frame.c b/Project/RTDSP/frame.c index a8fd350..1db240e 100644 --- a/Project/RTDSP/frame.c +++ b/Project/RTDSP/frame.c @@ -78,6 +78,8 @@ float *input; float *intermediate; float *output; volatile int index = 0; +float* mag; +complex C[BUFLEN]; /******************************* Function prototypes *******************************/ @@ -181,7 +183,7 @@ void ISR_AIC(void) void wait_buffer(void) { float *p; - + int i; /* wait for array index to be set to zero by ISR */ while(index); @@ -191,10 +193,19 @@ void wait_buffer(void) output = intermediate; intermediate = p; + /************************* DO PROCESSING OF FRAME HERE **************************/ - - - /*please add your code */ + + // Copy data elements to complex + for (i = 0; i < BUFLEN; ++i) + C[i].r = intermediate[i]; + + fft(BUFLEN, C); + + // Calculate the magnitude of the complex numbers + for (i = 0; i < BUFLEN; ++i) + mag[i] = cabs(C[i]); + /**********************************************************************************/ |