/********************************** Main routine ************************************/
void main(){
buf= (double*)calloc(N+1, sizeof(double));
// initialize board and the audio port
init_hardware();
/* initialize hardware interrupts */
init_HWI();
/* loop indefinitely, waiting for interrupts */
while(1)
{};
}
/********************************** Main routine ************************************/
void main(){
// initialize board and the audio port
init_hardware();
/* initialize hardware interrupts */
init_HWI();
/* loop indefinitely, waiting for interrupts */
while(1)
{};
}
/********************************** Main routine ************************************/
void main()
{
int k, j; // used in various for loops
/* Initialize and zero fill arrays */
inbuffer = (float *) calloc(CIRCBUF, sizeof(float)); /* Input array */
outbuffer = (float *) calloc(CIRCBUF, sizeof(float)); /* Output array */
inframe = (float *) calloc(FFTLEN, sizeof(float)); /* Array for processing*/
outframe = (float *) calloc(FFTLEN, sizeof(float)); /* Array for processing*/
inwin = (float *) calloc(FFTLEN, sizeof(float)); /* Input window */
outwin = (float *) calloc(FFTLEN, sizeof(float)); /* Output window */
intermediate_frame = (complex *) calloc(FFTLEN, sizeof(complex)); /* Processing window */
intermediate_frame_cpy = (complex *) calloc(FFTLEN, sizeof(complex));
prevFrame = (complex *) calloc(FFTLEN, sizeof(complex));
nextFrame = (complex *) calloc(FFTLEN, sizeof(complex));
noise_est = (float *) calloc(OVERSAMP*FFTLEN, sizeof(float)); //Noise estimate. 2D array
min_noise_est = (float *) calloc(FFTLEN, sizeof(float));
/* initialize board and the audio port */
init_hardware();
/* initialize hardware interrupts */
init_HWI();
/* initialize algorithm constants */
for (k=0;k<FFTLEN;k++)
{
inwin[k] = sqrt((1.0-WINCONST*cos(PI*(2*k+1)/FFTLEN))/OVERSAMP);
outwin[k] = inwin[k];
}
ingain=INGAIN;
outgain=OUTGAIN;
//Initialise the M bins
for (k=0; k<OVERSAMP; k++)
for (j=0; j<FFTLEN; j++)
noise_est[k*FFTLEN+k] = 9999999999999999;
//Initialise K for enhancement1
K_pole = exp(-TFRAME/time_const);
K_pole_enh3 = exp(-TFRAME/time_const_enh3);
/* main loop, wait for interrupt */
while(1) process_frame();
}
/********************************** Main routine ************************************/
void main(){
root=(node*)malloc(sizeof(node));
root->next=NULL;
create_buffer();
// initialize board and the audio port
init_hardware();
/* initialize hardware interrupts */
init_HWI();
/* loop indefinitely, waiting for interrupts */
while(1)
{};
}
/********************************** Main routine ************************************/
void main()
{
/* setup arrays */
init_arrays();
/* initialize board and the audio port */
init_hardware();
/* initialize hardware interrupts */
init_HWI();
/* loop indefinitely, waiting for interrupts */
while(1)
{
wait_buffer();
};
}
/********************************** Main routine ************************************/
void main()
{
int k; // used in various for loops
/* Initialize and zero fill arrays */
inbuffer = (float *) calloc(CIRCBUF, sizeof(float)); /* Input array */
outbuffer = (float *) calloc(CIRCBUF, sizeof(float)); /* Output array */
inframe = (float *) calloc(FFTLEN, sizeof(float)); /* Array for processing*/
outframe = (float *) calloc(FFTLEN, sizeof(float)); /* Array for processing*/
inwin = (float *) calloc(FFTLEN, sizeof(float)); /* Input window */
outwin = (float *) calloc(FFTLEN, sizeof(float)); /* Output window */
M1 = (float *) calloc(FFTLEN, sizeof(float));
M2 = (float *) calloc(FFTLEN, sizeof(float));
M3 = (float *) calloc(FFTLEN, sizeof(float));
M4 = (float *) calloc(FFTLEN, sizeof(float));
N_i = (float *) calloc(FFTLEN, sizeof(float));
N = (float *) calloc(FFTLEN, sizeof(float));
P = (float *) calloc(FFTLEN, sizeof(float));
buffer = (complex *) calloc(FFTLEN, sizeof(complex));
/* initialize board and the audio port */
init_hardware();
/* initialize hardware interrupts */
init_HWI();
/* initialize algorithm constants */
for (k=0;k<FFTLEN;k++)
{
inwin[k] = sqrt((1.0-WINCONST*cos(PI*(2*k+1)/FFTLEN))/OVERSAMP);
outwin[k] = inwin[k];
}
ingain=INGAIN;
outgain=OUTGAIN;
/* main loop, wait for interrupt */
while(1) process_frame();
}
/********************************** Main routine ************************************/
void main()
{
int k; // used in various for loops
int ii; //used in 2d array init
//int tau = TAU; //time constant for input low pass filter --enhancement 1
/* Initialize and zero fill arrays */
inBuffer = (float *) calloc(CIRCBUFFLEN, sizeof(float)); /* Input array */
outBuffer = (float *) calloc(CIRCBUFFLEN, sizeof(float)); /* Output array */
inFrame = (float *) calloc(FFTLEN, sizeof(float)); /* Array for processing*/
outFrame = (float *) calloc(FFTLEN, sizeof(float)); /* Array for processing*/
inWin = (float *) calloc(FFTLEN, sizeof(float)); /* Input window */
outWin = (float *) calloc(FFTLEN, sizeof(float)); /* Output window */
fft_input = (complex*)calloc(FFTLEN, sizeof(complex)); //Freq components of input
lowPass = (float*)calloc(FFTLEN, sizeof(float)); //Low passed of freq components of input
// fftMag_noise = (float*)calloc(FFTLEN, sizeof(float)); //Mag of Freq components of best noise guess
fft_gain = (float*)calloc(FFTLEN, sizeof(float)); //What we multiply input with to subtract noise
/* intialise 2D array */
/*noiseBuffers = (noiseBufferStruct*)calloc(NBUFFLEN, sizeof(noiseBufferStruct*)); //an array of noiseBuffer struct
for(ii = 0; ii<NBUFFLEN; ii++){
noiseBuffers[ii].fSpectrum = (float*) calloc(NFREQ, sizeof(float));
noiseBuffers[ii].power = 0;
}*/
recentThreeFrames = (complex**)calloc(FFTLEN, sizeof(complex*)); //an array of compelex struct
for(ii = 0; ii<3; ii++){
recentThreeFrames[ii] = (complex*) calloc(FFTLEN, sizeof(complex));
}
inputLPF_k = exp(-TFRAME/tau);
noiseLPF_k = exp(-TFRAME/tau);
inputLPF4_k = exp(-TFRAME/tau4);
noiseLPF4_k = exp(-TFRAME/tau4);
M1 = (float *) calloc(FFTLEN, sizeof(float));
M2 = (float *) calloc(FFTLEN, sizeof(float));
M3 = (float *) calloc(FFTLEN, sizeof(float));
M4 = (float *) calloc(FFTLEN, sizeof(float));
minM= (float *) calloc(FFTLEN, sizeof(float));
/* noiseBuffer = calloc(OVERSAMP, sizeof(float *));
for(ii = 0; ii < NFREQ; ii++) {
noiseBuffer[ii] = calloc(NFREQ, sizeof(float));
} */
/* initialize board and the audio port */
init_hardware();
/* initialize hardware interrupts */
init_HWI();
/* initialize algorithm constants */
for (k=0;k<FFTLEN;k++){
inWin[k] = sqrt((1.0-WINCONST*cos(PI*(2*k+1)/FFTLEN))/OVERSAMP);
outWin[k] = inWin[k];
}
inGain=INGAIN;
outGain=OUTGAIN;
/* main loop, wait for interrupt */
while(1) process_frame();
}