diff options
Diffstat (limited to 'Project/RTDSP/enhance.c')
| -rw-r--r-- | Project/RTDSP/enhance.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/Project/RTDSP/enhance.c b/Project/RTDSP/enhance.c index 9829c00..fc058fe 100644 --- a/Project/RTDSP/enhance.c +++ b/Project/RTDSP/enhance.c @@ -50,7 +50,7 @@ #define FRAMEINC (FFTLEN/OVERSAMP) /* Frame increment */ #define CIRCBUF (FFTLEN+FRAMEINC) /* length of I/O buffers */ #define FRAME_TIME 2.5 -#define MAX_COUNT 1000 +#define MAX_COUNT 20000 #define MAX_FLOAT 3.4E+38 #define OUTGAIN 16000.0 /* Output gain for DAC */ #define INGAIN (1.0/16000.0) /* Input gain for ADC */ @@ -247,11 +247,10 @@ void process_frame(void) if(frame_ctr > MAX_COUNT-1) { int i; frame_ctr = 0; - free(M[NUM_M-1].spec); - for(k = NUM_M-1; k > 0; ++k) { + M[0].spec = M[NUM_M-1].spec; + for(k = NUM_M-1; k > 0; --k) { M[k] = M[k-1]; } - M[0].spec = (complex *) malloc(FFTLEN * sizeof(complex)); M[0].mag_avg = MAX_FLOAT; for(i = 0; i < FFTLEN; ++i) { M[0].spec[i].r = MAX_FLOAT; @@ -287,7 +286,6 @@ void ISR_AIC(void) { short sample; /* Read and write the ADC and DAC using inbuffer and outbuffer */ - frame_ctr++; sample = mono_read_16Bit(); inbuffer[io_ptr] = ((float)sample)*ingain; /* write new output data */ @@ -296,6 +294,7 @@ void ISR_AIC(void) /* update io_ptr and check for buffer wraparound */ if (++io_ptr >= CIRCBUF) io_ptr=0; + frame_ctr++; } /************************************************************************************/ |