Codec2 simulation. Combines encoder and decoder and allows
switching in and out various algorithms and quantisation
- steps. Primary program for algorithm developments.
+ steps. Used for algorithm development.
\*---------------------------------------------------------------------------*/
#include "postfilter.h"
#include "interp.h"
-/*---------------------------------------------------------------------------*\
-
- switch_present()
-
- Searches the command line arguments for a "switch". If the switch is
- found, returns the command line argument where it ws found, else returns
- NULL.
-
-\*---------------------------------------------------------------------------*/
-
-int switch_present(sw,argc,argv)
-register char sw[]; /* switch in string form */
-register int argc; /* number of command line arguments */
-register char *argv[]; /* array of command line arguments in string form */
-{
- register int i; /* loop variable */
-
- for(i=1; i<argc; i++)
- if (!strcmp(sw,argv[i]))
- return(i);
-
- return 0;
-}
-
+int switch_present(char sw[],int argc, char *argv[]);
void synth_one_frame(short buf[], MODEL *model, float Sn_[], float Pn[]);
/*---------------------------------------------------------------------------*\
int main(int argc, char *argv[])
{
- FILE *fout; /* output speech file */
- FILE *fin; /* input speech file */
- short buf[N]; /* input/output buffer */
- float Sn[M]; /* float input speech samples */
- COMP Sw[FFT_ENC]; /* DFT of Sn[] */
- float w[M]; /* time domain hamming window */
- COMP W[FFT_ENC]; /* DFT of w[] */
- MODEL model;
- float Pn[2*N]; /* trapezoidal synthesis window */
- float Sn_[2*N]; /* synthesised speech */
- int i; /* loop variable */
- int frames;
- float prev_Wo, prev__Wo;
- float pitch;
- int voiced1 = 0;
-
- char out_file[MAX_STR];
- int arg;
- float snr;
- float sum_snr;
-
- int lpc_model, order = LPC_ORD;
- int lsp, lspd, lspvq, lsp_quantiser, lspres, lspdt, lspdt_mode;
- float ak[LPC_MAX];
- COMP Sw_[FFT_ENC];
- COMP Ew[FFT_ENC];
+ FILE *fout; /* output speech file */
+ FILE *fin; /* input speech file */
+ short buf[N]; /* input/output buffer */
+ float Sn[M]; /* float input speech samples */
+ COMP Sw[FFT_ENC]; /* DFT of Sn[] */
+ float w[M]; /* time domain hamming window */
+ COMP W[FFT_ENC]; /* DFT of w[] */
+ MODEL model;
+ float Pn[2*N]; /* trapezoidal synthesis window */
+ float Sn_[2*N]; /* synthesised speech */
+ int i; /* loop variable */
+ int frames;
+ float prev_Wo, prev__Wo;
+ float pitch;
+ int voiced1 = 0;
+
+ char out_file[MAX_STR];
+ int arg;
+ float snr;
+ float sum_snr;
+
+ int lpc_model, order = LPC_ORD;
+ int lsp, lspd, lspvq, lsp_quantiser, lspres, lspdt, lspdt_mode, dt;
+ float ak[LPC_MAX];
+ COMP Sw_[FFT_ENC];
+ COMP Ew[FFT_ENC];
- int dump;
+ int dump;
- int phase0;
- float ex_phase[MAX_AMP+1];
-
- int postfilt;
- float bg_est;
-
- int hand_voicing;
- FILE *fvoicing = 0;
-
- MODEL prev_model, interp_model;
- int decimate;
- float lsps[LPC_ORD];
- float prev_lsps[LPC_ORD];
- float lsps__prev[LPC_ORD];
- float lsps__prev2[LPC_ORD];
- float e, prev_e;
- float ak_interp[LPC_MAX];
-
- void *nlp_states;
- float hpf_states[2];
-
- for(i=0; i<M; i++)
- Sn[i] = 1.0;
- for(i=0; i<2*N; i++)
- Sn_[i] = 0;
-
- prev_Wo = TWO_PI/P_MAX;
-
- prev_model.Wo = TWO_PI/P_MIN;
- prev_model.L = floor(PI/prev_model.Wo);
- for(i=1; i<=prev_model.L; i++) {
- prev_model.A[i] = 0.0;
- prev_model.phi[i] = 0.0;
- }
- for(i=1; i<=MAX_AMP; i++) {
- ex_phase[i] = 0.0;
- }
- for(i=0; i<LPC_ORD; i++) {
- prev_lsps[i] = i*PI/(LPC_ORD+1);
- lsps__prev[i] = lsps__prev2[i] = i*PI/(LPC_ORD+1);
- }
- e = prev_e = 1;
- hpf_states[0] = hpf_states[1] = 0.0;
-
- nlp_states = nlp_create();
-
- if (argc < 2) {
- fprintf(stderr, "\nCodec2 - 2400 bit/s speech codec - Simulation Program\n"
- "\thttp://rowetel.com/codec2.html\n\n"
- "usage: %s InputFile [-o OutputFile]\n"
- "\t[--lpc Order]\n"
- "\t[--lsp]\n"
- "\t[--lspd]\n"
- "\t[--lspvq]\n"
- "\t[--lspres]\n"
- "\t[--lspdt]\n"
- "\t[--lspdt_mode all|high|low]\n"
- "\t[--phase0]\n"
- "\t[--postfilter]\n"
- "\t[--hand_voicing]\n"
- "\t[--dec]\n"
- "\t[--dump DumpFilePrefix]\n", argv[0]);
- exit(1);
- }
-
- /* Interpret command line arguments -------------------------------------*/
-
- /* Input file */
-
- if ((fin = fopen(argv[1],"rb")) == NULL) {
- fprintf(stderr, "Error opening input speech file: %s: %s.\n",
- argv[1], strerror(errno));
- exit(1);
- }
-
- /* Output file */
-
- if ((arg = switch_present("-o",argc,argv))) {
- if ((fout = fopen(argv[arg+1],"wb")) == NULL) {
- fprintf(stderr, "Error opening output speech file: %s: %s.\n",
- argv[arg+1], strerror(errno));
- exit(1);
+ int phase0;
+ float ex_phase[MAX_AMP+1];
+
+ int postfilt;
+ float bg_est;
+
+ int hand_voicing;
+ FILE *fvoicing = 0;
+
+ MODEL prev_model, interp_model;
+ int decimate;
+ float lsps[LPC_ORD];
+ float prev_lsps[LPC_ORD];
+ float lsps__prev[LPC_ORD];
+ float lsps__prev2[LPC_ORD];
+ float e, prev_e;
+ float ak_interp[LPC_MAX];
+
+ void *nlp_states;
+ float hpf_states[2];
+
+ for(i=0; i<M; i++)
+ Sn[i] = 1.0;
+ for(i=0; i<2*N; i++)
+ Sn_[i] = 0;
+
+ prev_Wo = prev__Wo = TWO_PI/P_MAX;
+
+ prev_model.Wo = TWO_PI/P_MIN;
+ prev_model.L = floor(PI/prev_model.Wo);
+ for(i=1; i<=prev_model.L; i++) {
+ prev_model.A[i] = 0.0;
+ prev_model.phi[i] = 0.0;
}
- strcpy(out_file,argv[arg+1]);
- }
- else
- fout = NULL;
-
- lpc_model = 0;
- if ((arg = switch_present("--lpc",argc,argv))) {
- lpc_model = 1;
- order = atoi(argv[arg+1]);
- if ((order < 4) || (order > 20)) {
- fprintf(stderr, "Error in lpc order: %d\n", order);
- exit(1);
- }
- }
-
- dump = switch_present("--dump",argc,argv);
+ for(i=1; i<=MAX_AMP; i++) {
+ ex_phase[i] = 0.0;
+ }
+ for(i=0; i<LPC_ORD; i++) {
+ prev_lsps[i] = i*PI/(LPC_ORD+1);
+ lsps__prev[i] = lsps__prev2[i] = i*PI/(LPC_ORD+1);
+ }
+ e = prev_e = 1;
+ hpf_states[0] = hpf_states[1] = 0.0;
+
+ nlp_states = nlp_create();
+
+ if (argc < 2) {
+ fprintf(stderr, "\nCodec2 - 2400 bit/s speech codec - Simulation Program\n"
+ "\thttp://rowetel.com/codec2.html\n\n"
+ "usage: %s InputFile [-o OutputFile]\n"
+ "\t[--lpc Order]\n"
+ "\t[--lsp]\n"
+ "\t[--lspd]\n"
+ "\t[--lspvq]\n"
+ "\t[--lspres]\n"
+ "\t[--lspdt]\n"
+ "\t[--lspdt_mode all|high|low]\n"
+ "\t[--phase0]\n"
+ "\t[--postfilter]\n"
+ "\t[--hand_voicing]\n"
+ "\t[--dec]\n"
+ "\t[--dt]\n"
+ "\t[--1400]\n"
+ "\t[--dump DumpFilePrefix]\n", argv[0]);
+ exit(1);
+ }
+
+ /* Interpret command line arguments -------------------------------------*/
+
+ /* Input file */
+
+ if ((fin = fopen(argv[1],"rb")) == NULL) {
+ fprintf(stderr, "Error opening input speech file: %s: %s.\n",
+ argv[1], strerror(errno));
+ exit(1);
+ }
+
+ /* Output file */
+
+ if ((arg = switch_present("-o",argc,argv))) {
+ if ((fout = fopen(argv[arg+1],"wb")) == NULL) {
+ fprintf(stderr, "Error opening output speech file: %s: %s.\n",
+ argv[arg+1], strerror(errno));
+ exit(1);
+ }
+ strcpy(out_file,argv[arg+1]);
+ }
+ else
+ fout = NULL;
+
+ lpc_model = 0;
+ if ((arg = switch_present("--lpc",argc,argv))) {
+ lpc_model = 1;
+ order = atoi(argv[arg+1]);
+ if ((order < 4) || (order > 20)) {
+ fprintf(stderr, "Error in lpc order: %d\n", order);
+ exit(1);
+ }
+ }
+
+ dump = switch_present("--dump",argc,argv);
#ifdef DUMP
- if (dump)
- dump_on(argv[dump+1]);
+ if (dump)
+ dump_on(argv[dump+1]);
#endif
- lsp = switch_present("--lsp",argc,argv);
- lsp_quantiser = 0;
- if (lsp)
- assert(order == LPC_ORD);
-
- lspd = switch_present("--lspd",argc,argv);
- if (lspd)
- assert(order == LPC_ORD);
-
- lspvq = switch_present("--lspvq",argc,argv);
- if (lspvq)
- assert(order == LPC_ORD);
-
- lspres = switch_present("--lspres",argc,argv);
-
- lspdt = switch_present("--lspdt",argc,argv);
- if ( (arg = switch_present("--lspdt_mode",argc,argv))) {
- if (strcmp(argv[arg+1],"all") == 0)
- lspdt_mode = LSPDT_ALL;
- else if (strcmp(argv[arg+1],"low") == 0)
- lspdt_mode = LSPDT_LOW;
- else if (strcmp(argv[arg+1],"high") == 0)
- lspdt_mode = LSPDT_HIGH;
- else {
- fprintf(stderr, "Error in lspdt_mode: %d\n", lspdt_mode);
- exit(1);
- }
- }
- else
- lspdt_mode = LSPDT_ALL;
-
- phase0 = switch_present("--phase0",argc,argv);
- if (phase0) {
- ex_phase[0] = 0;
- }
-
- hand_voicing = switch_present("--hand_voicing",argc,argv);
- if (hand_voicing) {
- fvoicing = fopen(argv[hand_voicing+1],"rt");
- assert(fvoicing != NULL);
- }
-
- bg_est = 0.0;
- postfilt = switch_present("--postfilter",argc,argv);
-
- decimate = switch_present("--dec",argc,argv);
-
- /* Initialise ------------------------------------------------------------*/
-
- make_analysis_window(w,W);
- make_synthesis_window(Pn);
- quantise_init();
-
- /* Main loop ------------------------------------------------------------*/
-
- frames = 0;
- sum_snr = 0;
- while(fread(buf,sizeof(short),N,fin)) {
- frames++;
- //printf("frame: %d", frames);
-
- /* Read input speech */
-
- for(i=0; i<M-N; i++)
- Sn[i] = Sn[i+N];
- for(i=0; i<N; i++)
- Sn[i+M-N] = buf[i];
+ lsp = switch_present("--lsp",argc,argv);
+ lsp_quantiser = 0;
+ if (lsp)
+ assert(order == LPC_ORD);
+
+ lspd = switch_present("--lspd",argc,argv);
+ if (lspd)
+ assert(order == LPC_ORD);
+
+ lspvq = switch_present("--lspvq",argc,argv);
+ if (lspvq)
+ assert(order == LPC_ORD);
+
+ lspres = switch_present("--lspres",argc,argv);
+
+ lspdt = switch_present("--lspdt",argc,argv);
+ if ( (arg = switch_present("--lspdt_mode",argc,argv))) {
+ if (strcmp(argv[arg+1],"all") == 0)
+ lspdt_mode = LSPDT_ALL;
+ else if (strcmp(argv[arg+1],"low") == 0)
+ lspdt_mode = LSPDT_LOW;
+ else if (strcmp(argv[arg+1],"high") == 0)
+ lspdt_mode = LSPDT_HIGH;
+ else {
+ fprintf(stderr, "Error in lspdt_mode: %d\n", lspdt_mode);
+ exit(1);
+ }
+ }
+ else
+ lspdt_mode = LSPDT_ALL;
+
+ phase0 = switch_present("--phase0",argc,argv);
+ if (phase0) {
+ ex_phase[0] = 0;
+ }
+
+ hand_voicing = switch_present("--hand_voicing",argc,argv);
+ if (hand_voicing) {
+ fvoicing = fopen(argv[hand_voicing+1],"rt");
+ assert(fvoicing != NULL);
+ }
+
+ bg_est = 0.0;
+ postfilt = switch_present("--postfilter",argc,argv);
+
+ decimate = switch_present("--dec",argc,argv);
+
+ dt = switch_present("--dt",argc,argv);
+
+ if (switch_present("--1400",argc,argv)) {
+ lpc_model = 1; order = 10;
+ lspdt = 1; lspdt_mode = LSPDT_LOW;
+ phase0 = 1;
+ postfilt = 1;
+ decimate = 1;
+ dt = 1;
+ }
+
+ /* Initialise ------------------------------------------------------------*/
+
+ make_analysis_window(w,W);
+ make_synthesis_window(Pn);
+ quantise_init();
+
+ /* Main Loop ------------------------------------------------------------*/
+
+ frames = 0;
+ sum_snr = 0;
+ while(fread(buf,sizeof(short),N,fin)) {
+ frames++;
+ //printf("frame: %d", frames);
+
+ /* Read input speech */
+
+ for(i=0; i<M-N; i++)
+ Sn[i] = Sn[i+N];
+ for(i=0; i<N; i++)
+ Sn[i+M-N] = buf[i];
- /* Estimate pitch */
+ /* Estimate pitch */
- nlp(nlp_states,Sn,N,M,P_MIN,P_MAX,&pitch,Sw,&prev_Wo);
- model.Wo = TWO_PI/pitch;
+ nlp(nlp_states,Sn,N,M,P_MIN,P_MAX,&pitch,Sw,&prev_Wo);
+ model.Wo = TWO_PI/pitch;
- /* estimate model parameters */
+ /* estimate model parameters --------------------------------------*/
- dft_speech(Sw, Sn, w);
- two_stage_pitch_refinement(&model, Sw);
- estimate_amplitudes(&model, Sw, W);
+ dft_speech(Sw, Sn, w);
+ two_stage_pitch_refinement(&model, Sw);
+ estimate_amplitudes(&model, Sw, W);
#ifdef DUMP
- dump_Sn(Sn); dump_Sw(Sw); dump_model(&model);
+ dump_Sn(Sn); dump_Sw(Sw); dump_model(&model);
#endif
- /* optional zero-phase modelling */
+ /* optional zero-phase modelling ----------------------------------*/
- if (phase0) {
- float Wn[M]; /* windowed speech samples */
- float Rk[LPC_MAX+1]; /* autocorrelation coeffs */
- int ret;
+ if (phase0) {
+ float Wn[M]; /* windowed speech samples */
+ float Rk[LPC_MAX+1]; /* autocorrelation coeffs */
+ int ret;
#ifdef DUMP
- dump_phase(&model.phi[0], model.L);
+ dump_phase(&model.phi[0], model.L);
#endif
- /* find aks here, these are overwritten if LPC modelling is enabled */
+ /* find aks here, these are overwritten if LPC modelling is enabled */
- for(i=0; i<M; i++)
- Wn[i] = Sn[i]*w[i];
- autocorrelate(Wn,Rk,M,order);
- levinson_durbin(Rk,ak,order);
+ for(i=0; i<M; i++)
+ Wn[i] = Sn[i]*w[i];
+ autocorrelate(Wn,Rk,M,order);
+ levinson_durbin(Rk,ak,order);
#ifdef DUMP
- dump_ak(ak, LPC_ORD);
+ dump_ak(ak, LPC_ORD);
#endif
- /* determine voicing */
+ /* determine voicing */
- snr = est_voicing_mbe(&model, Sw, W, Sw_, Ew, prev_Wo);
+ snr = est_voicing_mbe(&model, Sw, W, Sw_, Ew, prev_Wo);
#ifdef DUMP
- dump_Sw_(Sw_);
- dump_Ew(Ew);
- dump_snr(snr);
+ dump_Sw_(Sw_);
+ dump_Ew(Ew);
+ dump_snr(snr);
#endif
- /* just to make sure we are not cheating - kill all phases */
+ /* just to make sure we are not cheating - kill all phases */
- for(i=0; i<MAX_AMP; i++)
- model.phi[i] = 0;
+ for(i=0; i<MAX_AMP; i++)
+ model.phi[i] = 0;
- if (hand_voicing) {
- ret = fscanf(fvoicing,"%d\n",&model.voiced);
+ if (hand_voicing) {
+ ret = fscanf(fvoicing,"%d\n",&model.voiced);
+ }
}
- }
- /* optional LPC model amplitudes */
+ /* optional LPC model amplitudes and LSP quantisation -----------------*/
- if (lpc_model) {
- int lsp_indexes[LPC_MAX];
- float lsps_[LPC_ORD];
+ if (lpc_model) {
+ int lsp_indexes[LPC_MAX];
+ float lsps_[LPC_ORD];
- e = speech_to_uq_lsps(lsps, ak, Sn, w, order);
+ e = speech_to_uq_lsps(lsps, ak, Sn, w, order);
#ifdef DUMP
dump_lsp(lsps);
#endif
- if (lsp) {
- encode_lsps(lsp_indexes, lsps, LPC_ORD);
- decode_lsps(lsps_, lsp_indexes, LPC_ORD);
- bw_expand_lsps(lsps_, LPC_ORD);
- lsp_to_lpc(lsps_, ak, LPC_ORD);
- }
-
- if (lspd) {
- //locate_lsps_jnd_steps(lsps, LPC_ORD);
- lspd_quantise(lsps, lsps_, LPC_ORD);
- bw_expand_lsps(lsps_, LPC_ORD);
- lsp_to_lpc(lsps_, ak, LPC_ORD);
- }
-
- if (lspvq) {
- locate_lsps_jnd_steps(lsps, LPC_ORD);
- lspvq_quantise(lsps, lsps_, LPC_ORD);
- locate_lsps_jnd_steps(lsps_, LPC_ORD);
- lsp_to_lpc(lsps_, ak, LPC_ORD);
- }
+ /* various LSP quantisation schemes */
- if (lspres) {
- lspres_quantise(lsps, lsps_, LPC_ORD);
- locate_lsps_jnd_steps(lsps_, LPC_ORD);
- lsp_to_lpc(lsps_, ak, LPC_ORD);
- }
-
- /* we need lsp__prev[] for lspdt. If no other
- LSP quantisation is used we use original LSPs
- rather than quantised version. */
-
- if (!lsp && !lspd && !lspvq && !lspres)
- for(i=0; i<LPC_ORD; i++)
- lsps_[i] = lsps[i];
-
- /* Odd frames are generated by quantising the difference
- between the previous frames LSPs and this frames */
-
- if (lspdt && !decimate) {
- if (frames%2) {
- lspdt_quantise(lsps, lsps_, lsps__prev, lspdt_mode);
+ if (lsp) {
+ encode_lsps(lsp_indexes, lsps, LPC_ORD);
+ decode_lsps(lsps_, lsp_indexes, LPC_ORD);
bw_expand_lsps(lsps_, LPC_ORD);
lsp_to_lpc(lsps_, ak, LPC_ORD);
}
- for(i=0; i<LPC_ORD; i++)
- lsps__prev[i] = lsps_[i];
- }
- /*
- When decimation is enabled we only send LSPs to the decoder
- on odd frames. In the Delta-time LSPs case we encode every
- second odd frame (i.e. every 3rd frame) by quantising the
- difference between the 1st frames LSPs and this frames:
-
- 10ms, frame 1: send "full" LSP frame
- 20ms, frame 2: discard (interpolate at decoder)
- 30ms, frame 3: send LSPs differences between frame 3 and frame 1
- 40ms, frame 4: discard (interpolate at decoder)
- */
-
- if (lspdt && decimate) {
- if ((frames%4) == 3) {
- lspdt_quantise(lsps, lsps_, lsps__prev2, lspdt_mode);
+ if (lspd) {
+ //locate_lsps_jnd_steps(lsps, LPC_ORD);
+ lspd_quantise(lsps, lsps_, LPC_ORD);
bw_expand_lsps(lsps_, LPC_ORD);
lsp_to_lpc(lsps_, ak, LPC_ORD);
}
- for(i=0; i<LPC_ORD; i++) {
- lsps__prev2[i] = lsps__prev[i];
- lsps__prev[i] = lsps_[i];
+
+ if (lspvq) {
+ locate_lsps_jnd_steps(lsps, LPC_ORD);
+ lspvq_quantise(lsps, lsps_, LPC_ORD);
+ locate_lsps_jnd_steps(lsps_, LPC_ORD);
+ lsp_to_lpc(lsps_, ak, LPC_ORD);
}
- }
+ if (lspres) {
+ lspres_quantise(lsps, lsps_, LPC_ORD);
+ locate_lsps_jnd_steps(lsps_, LPC_ORD);
+ lsp_to_lpc(lsps_, ak, LPC_ORD);
+ }
+
+ /* we need lsp__prev[] for lspdt. If no other
+ LSP quantisation is used we use original LSPs
+ as there is no quantised version available. */
+
+ if (!lsp && !lspd && !lspvq && !lspres)
+ for(i=0; i<LPC_ORD; i++)
+ lsps_[i] = lsps[i];
+
+ /* Odd frames are generated by quantising the difference
+ between the previous frames LSPs and this frames */
+
+ if (lspdt && !decimate) {
+ if (frames%2) {
+ lspdt_quantise(lsps, lsps_, lsps__prev, lspdt_mode);
+ bw_expand_lsps(lsps_, LPC_ORD);
+ lsp_to_lpc(lsps_, ak, LPC_ORD);
+ }
+ for(i=0; i<LPC_ORD; i++)
+ lsps__prev[i] = lsps_[i];
+ }
+
+ /*
+ When decimation is enabled we only send LSPs to the
+ decoder on odd frames. In the Delta-time LSPs case we
+ encode every second odd frame (i.e. every 3rd frame out
+ of 4) by quantising the difference between the 1st
+ frames LSPs and the 3rd frames:
+
+ 10ms, frame 1: send "full" LSP frame
+ 20ms, frame 2: discard (interpolate at decoder)
+ 30ms, frame 3: send LSPs differences between frame 3 and frame 1
+ 40ms, frame 4: discard (interpolate at decoder)
+ */
+
+ if (lspdt && decimate) {
+ if ((frames%4) == 3) {
+ lspdt_quantise(lsps, lsps_, lsps__prev2, lspdt_mode);
+ bw_expand_lsps(lsps_, LPC_ORD);
+ lsp_to_lpc(lsps_, ak, LPC_ORD);
+ }
+ for(i=0; i<LPC_ORD; i++) {
+ lsps__prev2[i] = lsps__prev[i];
+ lsps__prev[i] = lsps_[i];
+ }
+ }
+
#ifdef DUMP
dump_lsp(lsps_);
#endif
- e = decode_energy(encode_energy(e));
- model.Wo = decode_Wo(encode_Wo(model.Wo));
+
+ /* We quantise energy and Wo when doing any form of LPC
+ modelling. This sounds transparent and saves an extra
+ command line switch to enable/disable. */
+
+ e = decode_energy(encode_energy(e));
- aks_to_M2(ak, order, &model, e, &snr, 1);
+ if (!decimate && dt && (frames % 2)) {
+ model.Wo = decode_Wo_dt(encode_Wo_dt(model.Wo, prev_Wo),prev_Wo);
+ model.L = PI/model.Wo;
+ }
+
+ if (decimate && dt && ((frames % 4) == 3)) {
+ model.Wo = decode_Wo_dt(encode_Wo_dt(model.Wo, prev__Wo),prev__Wo);
+ model.L = PI/model.Wo;
+ //printf("dWo");
+ }
+
+ if (!decimate && !dt)
+ model.Wo = decode_Wo(encode_Wo(model.Wo));
+
+ aks_to_M2(ak, order, &model, e, &snr, 1);
#ifdef DUMP
- dump_lpc_snr(snr);
+ dump_lpc_snr(snr);
#endif
- apply_lpc_correction(&model);
- sum_snr += snr;
+ apply_lpc_correction(&model);
+ sum_snr += snr;
#ifdef DUMP
- dump_quantised_model(&model);
+ dump_quantised_model(&model);
#endif
- }
+ }
#ifdef RESAMPLE
- /* optional resampling of model amplitudes */
+ /* optional resampling of model amplitudes */
- //printf("frames=%d\n", frames);
- if (resample) {
- snr = resample_amp_nl(&model, resample, AresdB_prev);
- sum_snr += snr;
+ //printf("frames=%d\n", frames);
+ if (resample) {
+ snr = resample_amp_nl(&model, resample, AresdB_prev);
+ sum_snr += snr;
#ifdef DUMP
- dump_quantised_model(&model);
+ dump_quantised_model(&model);
#endif
- }
+ }
#endif
- /* option decimation to 20ms rate, which enables interpolation
- routine to synthesise in between frame */
+ /* option decimation to 20ms rate, which enables interpolation
+ routine to synthesise in between frame ---------------------------*/
- if (decimate) {
- if (!phase0) {
- printf("needs --phase0 to resample phase for interpolated Wo\n");
- exit(0);
- }
- if (!lpc_model) {
- printf("needs --lpc 10 to resample amplitudes\n");
- exit(0);
- }
+ if (decimate) {
+ if (!phase0) {
+ printf("needs --phase0 to resample phase for interpolated Wo\n");
+ exit(0);
+ }
+ if (!lpc_model) {
+ printf("needs --lpc 10 to resample amplitudes\n");
+ exit(0);
+ }
- /*
- Each 20ms we synthesise two 10ms frames:
+ /*
+ Each 20ms we synthesise two 10ms frames:
- frame 1: interpolate frame 0 LSPs from frame -1 and frame 1
- synthesis frame 0 and frame 1 speech
- frame 2: discard except for voicing bit
- frame 3: interpolate frame 2 LSPs from frame 1 and frame 3
- synthesis frame 2 and frame 3 speech
- frame 4: discard except for voicing bit
- */
+ frame 1: interpolate frame 0 LSPs from frame -1 and frame 1
+ synthesise frame 0 and frame 1 speech
+ frame 2: discard except for voicing bit
+ frame 3: interpolate frame 2 LSPs from frame 1 and frame 3
+ synthesise frame 2 and frame 3 speech
+ frame 4: discard except for voicing bit
+ */
- if (frames%2) {
+ if (frames%2) {
+ //printf("interp\n");
- interp_model.voiced = voiced1;
+ /* decode interpolated frame */
- #ifdef LOG_LIN_INTERP
- interpolate(&interp_model, &prev_model, &model);
- #else
- interpolate_lsp(&interp_model, &prev_model, &model,
- prev_lsps, prev_e, lsps, e, ak_interp);
- apply_lpc_correction(&interp_model);
- #endif
-
- if (phase0)
- phase_synth_zero_order(&interp_model, ak_interp, ex_phase,
- order);
- if (postfilt)
- postfilter(&interp_model, &bg_est);
- synth_one_frame(buf, &interp_model, Sn_, Pn);
- if (fout != NULL) fwrite(buf,sizeof(short),N,fout);
+ interp_model.voiced = voiced1;
+#ifdef LOG_LIN_INTERP
+ interpolate(&interp_model, &prev_model, &model);
+#else
+ interpolate_lsp(&interp_model, &prev_model, &model,
+ prev_lsps, prev_e, lsps, e, ak_interp);
+ apply_lpc_correction(&interp_model);
+#endif
+
+ if (phase0)
+ phase_synth_zero_order(&interp_model, ak_interp, ex_phase,
+ order);
+ if (postfilt)
+ postfilter(&interp_model, &bg_est);
+ synth_one_frame(buf, &interp_model, Sn_, Pn);
+ if (fout != NULL)
+ fwrite(buf,sizeof(short),N,fout);
+
+ /* decode this frame */
+
+ if (phase0)
+ phase_synth_zero_order(&model, ak, ex_phase, order);
+ if (postfilt)
+ postfilter(&model, &bg_est);
+ synth_one_frame(buf, &model, Sn_, Pn);
+ if (fout != NULL)
+ fwrite(buf,sizeof(short),N,fout);
+
+ /* update states for next time */
+
+ prev_model = model;
+ for(i=0; i<LPC_ORD; i++)
+ prev_lsps[i] = lsps[i];
+ prev_e = e;
+ }
+ else {
+ voiced1 = model.voiced;
+ }
+ }
+ else {
if (phase0)
phase_synth_zero_order(&model, ak, ex_phase, order);
if (postfilt)
postfilter(&model, &bg_est);
synth_one_frame(buf, &model, Sn_, Pn);
if (fout != NULL) fwrite(buf,sizeof(short),N,fout);
-
- prev_model = model;
- for(i=0; i<LPC_ORD; i++)
- prev_lsps[i] = lsps[i];
- prev_e = e;
- }
- else {
- voiced1 = model.voiced;
}
+ prev__Wo = prev_Wo;
+ prev_Wo = TWO_PI/pitch;
}
- else {
- if (phase0)
- phase_synth_zero_order(&model, ak, ex_phase, order);
- if (postfilt)
- postfilter(&model, &bg_est);
- synth_one_frame(buf, &model, Sn_, Pn);
- if (fout != NULL) fwrite(buf,sizeof(short),N,fout);
- }
- prev_Wo = TWO_PI/pitch;
- prev__Wo = Wo;
- }
- fclose(fin);
- if (fout != NULL)
- fclose(fout);
+ /* End Main Loop -----------------------------------------------------*/
- if (lpc_model)
- printf("SNR av = %5.2f dB\n", sum_snr/frames);
+ fclose(fin);
+
+ if (fout != NULL)
+ fclose(fout);
+
+ if (lpc_model)
+ printf("SNR av = %5.2f dB\n", sum_snr/frames);
#ifdef DUMP
- if (dump)
- dump_off();
+ if (dump)
+ dump_off();
#endif
- if (hand_voicing)
- fclose(fvoicing);
+ if (hand_voicing)
+ fclose(fvoicing);
+
+ nlp_destroy(nlp_states);
+
+ return 0;
+}
+
+/*---------------------------------------------------------------------------*\
+
+ switch_present()
+
+ Searches the command line arguments for a "switch". If the switch is
+ found, returns the command line argument where it ws found, else returns
+ NULL.
+
+\*---------------------------------------------------------------------------*/
+
+int switch_present(
+ char sw[], /* switch in string form */
+ int argc, /* number of command line arguments */
+ char *argv[] /* array of command line arguments in string
+ form */
+ )
+{
+ int i;
- nlp_destroy(nlp_states);
+ for(i=1; i<argc; i++)
+ if (!strcmp(sw,argv[i]))
+ return(i);
- return 0;
+ return 0;
}
void synth_one_frame(short buf[], MODEL *model, float Sn_[], float Pn[])
am_genres_OBJECTS = genres.$(OBJEXT) lpc.$(OBJEXT)
genres_OBJECTS = $(am_genres_OBJECTS)
genres_DEPENDENCIES =
+am__objects_1 = codebook.$(OBJEXT) codebookd.$(OBJEXT) \
+ codebookvq.$(OBJEXT) codebookres.$(OBJEXT) \
+ codebookdt.$(OBJEXT)
am_tcodec2_OBJECTS = tcodec2.$(OBJEXT) quantise.$(OBJEXT) \
lpc.$(OBJEXT) lsp.$(OBJEXT) dump.$(OBJEXT) fft.$(OBJEXT) \
kiss_fft.$(OBJEXT) codec2.$(OBJEXT) sine.$(OBJEXT) \
nlp.$(OBJEXT) postfilter.$(OBJEXT) phase.$(OBJEXT) \
- interp.$(OBJEXT) codebook.$(OBJEXT) codebookd.$(OBJEXT) \
- codebookvq.$(OBJEXT) codebookres.$(OBJEXT) pack.$(OBJEXT)
+ interp.$(OBJEXT) pack.$(OBJEXT) $(am__objects_1)
tcodec2_OBJECTS = $(am_tcodec2_OBJECTS)
tcodec2_DEPENDENCIES =
am_tinterp_OBJECTS = tinterp.$(OBJEXT) sine.$(OBJEXT) fft.$(OBJEXT) \
kiss_fft.$(OBJEXT) interp.$(OBJEXT) lpc.$(OBJEXT) \
- lsp.$(OBJEXT) quantise.$(OBJEXT) codebook.$(OBJEXT) \
- codebookd.$(OBJEXT) codebookvq.$(OBJEXT) codebookres.$(OBJEXT) \
+ lsp.$(OBJEXT) quantise.$(OBJEXT) $(am__objects_1) \
dump.$(OBJEXT)
tinterp_OBJECTS = $(am_tinterp_OBJECTS)
tinterp_DEPENDENCIES =
tnlp_DEPENDENCIES =
am_tquant_OBJECTS = tquant.$(OBJEXT) quantise.$(OBJEXT) lpc.$(OBJEXT) \
lsp.$(OBJEXT) dump.$(OBJEXT) fft.$(OBJEXT) kiss_fft.$(OBJEXT) \
- codebook.$(OBJEXT) codebookd.$(OBJEXT) codebookvq.$(OBJEXT) \
- codebookres.$(OBJEXT)
+ $(am__objects_1)
tquant_OBJECTS = $(am_tquant_OBJECTS)
tquant_DEPENDENCIES =
am_vqtrain_OBJECTS = vqtrain.$(OBJEXT)
vqtrain_SOURCES = vqtrain.c
vqtrain_LDADD = $(lib_LTLIBRARIES)
vqtrain_LDFLAGS = $(LIBS)
+CODEBOOKS = ../src/codebook.c ../src/codebookd.c ../src/codebookvq.c ../src/codebookres.c ../src/codebookdt.c
tnlp_SOURCES = tnlp.c ../src/sine.c ../src/nlp.c ../src/fft.c ../src/kiss_fft.c ../src/dump.c
tnlp_LDADD = $(lib_LTLIBRARIES)
tnlp_LDFLAGS = $(LIBS)
-tinterp_SOURCES = tinterp.c ../src/sine.c ../src/fft.c ../src/kiss_fft.c ../src/interp.c ../src/lpc.c ../src/lsp.c ../src/quantise.c ../src/codebook.c ../src/codebookd.c ../src/codebookvq.c ../src/codebookres.c ../src/dump.c
+tinterp_SOURCES = tinterp.c ../src/sine.c ../src/fft.c ../src/kiss_fft.c ../src/interp.c ../src/lpc.c ../src/lsp.c ../src/quantise.c $(CODEBOOKS) ../src/dump.c
tinterp_LDADD = $(lib_LTLIBRARIES)
tinterp_LDFLAGS = $(LIBS)
-tquant_SOURCES = tquant.c ../src/quantise.c ../src/lpc.c ../src/lsp.c ../src/dump.c ../src/fft.c ../src/kiss_fft.c ../src/codebook.c ../src/codebookd.c ../src/codebookvq.c ../src/codebookres.c
+tquant_SOURCES = tquant.c ../src/quantise.c ../src/lpc.c ../src/lsp.c ../src/dump.c ../src/fft.c ../src/kiss_fft.c $(CODEBOOKS)
tquant_LDADD = $(lib_LTLIBRARIES)
tquant_LDFLAGS = $(LIBS)
tcodec2_SOURCES = tcodec2.c ../src/quantise.c ../src/lpc.c ../src/lsp.c ../src/dump.c ../src/fft.c ../src/kiss_fft.c \
-../src/codec2.c ../src/sine.c ../src/nlp.c ../src/postfilter.c ../src/phase.c ../src/interp.c \
-../src/codebook.c ../src/codebookd.c ../src/codebookvq.c ../src/codebookres.c ../src/pack.c
+../src/codec2.c ../src/sine.c ../src/nlp.c ../src/postfilter.c ../src/phase.c ../src/interp.c ../src/pack.c $(CODEBOOKS)
tcodec2_LDADD = $(lib_LTLIBRARIES)
tcodec2_LDFLAGS = $(LIBS)
genbands_SOURCES = genbands.c ../src/quantise.c ../src/lpc.c ../src/lsp.c ../src/dump.c ../src/fft.c ../src/kiss_fft.c \
-../src/codec2.c ../src/sine.c ../src/nlp.c ../src/postfilter.c ../src/phase.c ../src/interp.c \
-../src/codebook.c ../src/codebookd.c ../src/codebookvq.c ../src/pack.c
+../src/codec2.c ../src/sine.c ../src/nlp.c ../src/postfilter.c ../src/phase.c ../src/interp.c $(CODEBOOKS) ../src/pack.c
genbands_LDADD = $(lib_LTLIBRARIES)
genbands_LDFLAGS = $(LIBS)
vq_clip_test_SOURCES = vq_clip_test.c ../src/quantise.c ../src/lpc.c ../src/lsp.c ../src/dump.c ../src/fft.c ../src/kiss_fft.c \
-../src/codec2.c ../src/sine.c ../src/nlp.c ../src/postfilter.c ../src/phase.c ../src/interp.c \
-../src/codebook.c ../src/codebookd.c ../src/codebookvq.c ../src/codebookres.c ../src/pack.c
+../src/codec2.c ../src/sine.c ../src/nlp.c ../src/postfilter.c ../src/phase.c ../src/interp.c $(CODEBOOKS) ../src/pack.c
vq_clip_test_LDADD = $(lib_LTLIBRARIES)
vq_clip_test_LDFLAGS = $(LIBS)
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/codebook.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/codebookd.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/codebookdt.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/codebookres.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/codebookvq.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/codec2.Po@am__quote@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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+pack.o: ../src/pack.c
+@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pack.o -MD -MP -MF "$(DEPDIR)/pack.Tpo" -c -o pack.o `test -f '../src/pack.c' || echo '$(srcdir)/'`../src/pack.c; \
+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/pack.Tpo" "$(DEPDIR)/pack.Po"; else rm -f "$(DEPDIR)/pack.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='../src/pack.c' object='pack.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o pack.o `test -f '../src/pack.c' || echo '$(srcdir)/'`../src/pack.c
+
+pack.obj: ../src/pack.c
+@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pack.obj -MD -MP -MF "$(DEPDIR)/pack.Tpo" -c -o pack.obj `if test -f '../src/pack.c'; then $(CYGPATH_W) '../src/pack.c'; else $(CYGPATH_W) '$(srcdir)/../src/pack.c'; fi`; \
+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/pack.Tpo" "$(DEPDIR)/pack.Po"; else rm -f "$(DEPDIR)/pack.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='../src/pack.c' object='pack.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o pack.obj `if test -f '../src/pack.c'; then $(CYGPATH_W) '../src/pack.c'; else $(CYGPATH_W) '$(srcdir)/../src/pack.c'; fi`
+
codebook.o: ../src/codebook.c
@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT codebook.o -MD -MP -MF "$(DEPDIR)/codebook.Tpo" -c -o codebook.o `test -f '../src/codebook.c' || echo '$(srcdir)/'`../src/codebook.c; \
@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/codebook.Tpo" "$(DEPDIR)/codebook.Po"; else rm -f "$(DEPDIR)/codebook.Tpo"; exit 1; fi
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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-pack.o: ../src/pack.c
-@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pack.o -MD -MP -MF "$(DEPDIR)/pack.Tpo" -c -o pack.o `test -f '../src/pack.c' || echo '$(srcdir)/'`../src/pack.c; \
-@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/pack.Tpo" "$(DEPDIR)/pack.Po"; else rm -f "$(DEPDIR)/pack.Tpo"; exit 1; fi
-@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='../src/pack.c' object='pack.o' libtool=no @AMDEPBACKSLASH@
+codebookdt.o: ../src/codebookdt.c
+@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT codebookdt.o -MD -MP -MF "$(DEPDIR)/codebookdt.Tpo" -c -o codebookdt.o `test -f '../src/codebookdt.c' || echo '$(srcdir)/'`../src/codebookdt.c; \
+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/codebookdt.Tpo" "$(DEPDIR)/codebookdt.Po"; else rm -f "$(DEPDIR)/codebookdt.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='../src/codebookdt.c' object='codebookdt.o' libtool=no @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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+@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o codebookdt.o `test -f '../src/codebookdt.c' || echo '$(srcdir)/'`../src/codebookdt.c
-pack.obj: ../src/pack.c
-@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pack.obj -MD -MP -MF "$(DEPDIR)/pack.Tpo" -c -o pack.obj `if test -f '../src/pack.c'; then $(CYGPATH_W) '../src/pack.c'; else $(CYGPATH_W) '$(srcdir)/../src/pack.c'; fi`; \
-@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/pack.Tpo" "$(DEPDIR)/pack.Po"; else rm -f "$(DEPDIR)/pack.Tpo"; exit 1; fi
-@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='../src/pack.c' object='pack.obj' libtool=no @AMDEPBACKSLASH@
+codebookdt.obj: ../src/codebookdt.c
+@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT codebookdt.obj -MD -MP -MF "$(DEPDIR)/codebookdt.Tpo" -c -o codebookdt.obj `if test -f '../src/codebookdt.c'; then $(CYGPATH_W) '../src/codebookdt.c'; else $(CYGPATH_W) '$(srcdir)/../src/codebookdt.c'; fi`; \
+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/codebookdt.Tpo" "$(DEPDIR)/codebookdt.Po"; else rm -f "$(DEPDIR)/codebookdt.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='../src/codebookdt.c' object='codebookdt.obj' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o codebookdt.obj `if test -f '../src/codebookdt.c'; then $(CYGPATH_W) '../src/codebookdt.c'; else $(CYGPATH_W) '$(srcdir)/../src/codebookdt.c'; fi`
mostlyclean-libtool:
-rm -f *.lo
projects / freetel-svn-tracking.git / commitdiff