diff -urN midi_prog-/Makefile midi_prog/Makefile
--- midi_prog-/Makefile	2015-08-13 00:00:00.000000000 +0900
+++ midi_prog/Makefile	2015-08-25 00:00:00.000000000 +0900
@@ -10,8 +10,9 @@
 VOCO_OBJS = voco.o vco.o wave.o in.o filter.o out.o util.o
 MIDTXT_OBJS = midtxt.o rd.o wrt.o util.o
 TOOL_OBJS = tool.o in.o out.o util.o buf.o pitch.o pitdet.o
+RAWMIX2_OBJS = rawmix2.o in.o out.o util.o
 
-all: $(TARG) vcd voco midtxt tool
+all: $(TARG) vcd voco midtxt tool rawmix2
 
 $(TARG): $(OBJS)
 	$(CC) -o $@ $(OBJS) $(LIB)
@@ -28,10 +29,14 @@
 tool: $(TOOL_OBJS)
 	$(CC) -o $@ $(TOOL_OBJS) -lm
 
+rawmix2: $(RAWMIX2_OBJS)
+	$(CC) -o $@ $(RAWMIX2_OBJS)
+
 clean:
 	rm -f $(TARG) $(OBJS) *~
 	rm -f vcd $(VCD_OBJS) voco $(VOCO_OBJS)
 	rm -f midtxt $(MIDTXT_OBJS)
 	rm -f tool $(TOOL_OBJS)
+	rm -f rawmix2 $(RAWMIX2_OBJS)
 
 # EOF
diff -urN midi_prog-/buf.c midi_prog/buf.c
--- midi_prog-/buf.c	2015-08-10 00:00:00.000000000 +0900
+++ midi_prog/buf.c	2015-08-26 00:34:39.000000000 +0900
@@ -152,6 +152,12 @@
 	return v + (rbuf_get_arr_cpx(rb, arr_idx((si + 1), rb->n)) - v) * d;
 }
 
+void
+rbuf_set_dbl(struct rbuf *rb, int si, double v)
+{
+	rbuf_set_arr_dbl(rb, arr_idx(si, rb->n), v);
+}
+
 
 /* tbuf */
 
@@ -229,6 +235,13 @@
 	return rbuf_get_cpx(&tb->rb, sridx);
 }
 
+void
+tbuf_set_dbl(struct tbuf *tb, double sec, double v)
+{
+	double sridx = tbuf_sec_to_sridx(tb, sec);
+	rbuf_set_dbl(&tb->rb, (int)sridx, v);
+}
+
 
 /* sbuf */
 
diff -urN midi_prog-/buf.h midi_prog/buf.h
--- midi_prog-/buf.h	2015-08-10 00:00:00.000000000 +0900
+++ midi_prog/buf.h	2015-08-26 00:34:19.000000000 +0900
@@ -36,6 +36,8 @@
 double rbuf_get_dbl(struct rbuf *rb, double sridx);
 double complex rbuf_get_cpx(struct rbuf *rb, double sridx);
 
+void rbuf_set_dbl(struct rbuf *rb, int si, double v);
+
 
 struct tbuf{
 	struct rbuf rb;
@@ -60,6 +62,8 @@
 double tbuf_get_dbl(struct tbuf *tb, double sec);
 double complex tbuf_get_cpx(struct tbuf *tb, double sec);
 
+void tbuf_set_dbl(struct tbuf *tb, double sec, double v);
+
 
 struct sbuf{
 	struct tbuf tb;
diff -urN midi_prog-/note.c midi_prog/note.c
--- midi_prog-/note.c	2015-06-25 00:00:00.000000000 +0900
+++ midi_prog/note.c	2015-08-25 00:00:00.000000000 +0900
@@ -6,6 +6,7 @@
 static int note_pure = 0, note_base = -1, note_pure_cent = 25;
 static int pure_enable[MIDI_CH_N];
 static double note_base_freq;
+static int adj_cent = 0;
 
 static struct{
 	int h, l;
@@ -30,6 +31,8 @@
 	int ch, v;
 	char *s;
 
+	adj_cent = opt_int("-adj_cent", ac, av, 0);
+
 	note_pure = opt_idx("-pure", ac, av) >= 0;
 	note_pure_cent = opt_int("-pure_cent", ac, av, note_pure_cent);
 
@@ -102,13 +105,13 @@
 static double
 note_to_freq(int note)
 {
-	return 440 * pow(2, (note - 69) / 12.0);
+	return 440 * pow(2, (note - 69 + adj_cent *0.01) / 12.0);
 }
 
 static double
 freq_to_note(double freq)
 {
-	return (log(freq / 440) / log(2)) * 12 + 69;
+	return (log(freq / 440) / log(2)) * 12 + 69 - adj_cent * 0.01;
 }
 
 static int
diff -urN midi_prog-/pitdet.c midi_prog/pitdet.c
--- midi_prog-/pitdet.c	2015-08-22 00:00:00.000000000 +0900
+++ midi_prog/pitdet.c	2015-08-25 00:00:00.000000000 +0900
@@ -14,7 +14,7 @@
 
 void
 pitdet_init(struct pitdet *pd, double smp_freq, int adj_cent,
-	    int div, double abuf_wsec)
+	    int div, double abuf_wsec, double thres)
 {
 	int j;
 
@@ -39,6 +39,61 @@
 	pd->newest.update = 0;
 
 	pd->max_v = -1;
+	pd->thres = thres;
+
+	if((pd->wk = malloc(sizeof(*pd->wk) * pd->m)) == NULL) ERR("No Mem");
+}
+
+static void
+shadow_cut(struct pitdet *pd, double sec)
+{
+	int j;
+
+	for(j=0; j<pd->m; j++){
+		double v;
+		int onoff = pitdet_onoff(pd, sec, j, &v);
+		pd->wk[j].stat = onoff ? 0 : -1;
+		if(onoff) pd->wk[j].v = v;
+	}
+
+	while(1){
+		int t = -1;
+		double v_max = 0;
+		for(j=0; j<pd->m; j++){
+			if(pd->wk[j].stat != 0) continue;
+			if(t < 0 || pd->wk[j].v > v_max){
+				t = j;
+				v_max = pd->wk[j].v;
+			}
+		}
+		if(t < 0) break;
+		pd->wk[t].stat++;
+
+		for(j=0; j<pd->m; j++){
+			double a, x, k;
+
+			if(pd->wk[j].stat != 0) continue;
+
+			/*			
+			wn/(2*freq) = (wn+a)/(2*freq[j])
+			a = wn*freq[j]/freq - wn
+			  = wn*(freq[j]/freq - 1)
+			*/
+			a = pd->arr[t].wn * (pd->arr[j].freq / pd->arr[t].freq - 1);
+			x = a * M_PI;
+			k = sin(x) / x;
+			k = ABS(k);
+
+			pd->wk[j].v -= pd->wk[t].v * k;
+			if(!pitdet_onoff_judge(pd, pd->wk[j].v)) pd->wk[j].stat = -1;
+		}
+	}
+
+	for(j=0; j<pd->m; j++){
+		struct pitch *p = &pd->arr[j];
+		double v = pd->wk[j].stat >= 0 ? pd->wk[j].v : -1;
+		tbuf_set_dbl(&p->ab.tb, sec, v);
+	}
 }
 
 void
@@ -63,4 +118,27 @@
 	}
 	if((pd->oldest.update = (pd->oldest.sec != osec)) != 0) pd->oldest.sec = osec;
 	if((pd->newest.update = (pd->newest.sec != nsec)) != 0) pd->newest.sec = nsec;
+
+	if(pd->oldest.update && pd->oldest.sec >= 0) shadow_cut(pd, pd->oldest.sec);
+}
+
+int
+pitdet_sec_to_tick(struct pitdet *pd, double sec)
+{
+	struct tbuf *tb = &pd->arr[0].ab.tb;
+	return (int) tbuf_sec_to_sridx(tb, sec);
+}
+
+int
+pitdet_onoff_judge(struct pitdet *pd, double v)
+{
+	return v / pd->max_v >= pd->thres;
+}
+
+int
+pitdet_onoff(struct pitdet *pd, double sec, int j, double *ret_v)
+{
+	double v = tbuf_get_dbl(&pd->arr[j].ab.tb, sec);
+	if(ret_v) *ret_v = v;
+	return pitdet_onoff_judge(pd, v);
 }
diff -urN midi_prog-/pitdet.h midi_prog/pitdet.h
--- midi_prog-/pitdet.h	2015-08-22 00:00:00.000000000 +0900
+++ midi_prog/pitdet.h	2015-08-25 00:00:00.000000000 +0900
@@ -15,14 +15,24 @@
 	} oldest, newest;
 
 	double max_v;
+	double thres;
+
+	struct{
+		int stat;
+		double v;
+	} *wk;
 };
 
 double pitdet_note_to_freq(struct pitdet *pd, double note);
 double pitdet_freq_to_note(struct pitdet *pd, double freq);
 
 void pitdet_init(struct pitdet *pd, double smp_freq, int adj_cent,
-		 int div, double abuf_wsec);
+		 int div, double abuf_wsec, double thres);
 
 void pitdet_add(struct pitdet *pd, double v);
 
+int pitdet_sec_to_tick(struct pitdet *pd, double sec);
+int pitdet_onoff_judge(struct pitdet *pd, double v);
+int pitdet_onoff(struct pitdet *pd, double sec, int j, double *ret_v);
+
 #endif
diff -urN midi_prog-/rawmix2.c midi_prog/rawmix2.c
--- midi_prog-/rawmix2.c	1970-01-01 09:00:00.000000000 +0900
+++ midi_prog/rawmix2.c	2015-08-25 00:00:00.000000000 +0900
@@ -0,0 +1,37 @@
+#include "util.h"
+#include "in.h"
+#include "out.h"
+
+int
+main(int ac, char **av)
+{
+	FILE *fp_l = fp_get("-l", ac, av, "-", "r");
+	FILE *fp_r = fp_get("-r", ac, av, "-", "r");
+	FILE *fp_o = fp_get("-o", ac, av, "-", "w");
+	struct out_rec otr;
+	in_rec_t in_l, in_r;
+
+	if(fp_l == NULL || fp_r == NULL || fp_o == NULL) ERR("Can't open");
+
+	out_init(&otr, ac, av);
+	otr.fp = fp_o;
+
+	in_init(&in_l, ac, av);
+	in_l.fp = fp_l;
+	in_l.ch_num = 1;
+
+	in_init(&in_r, ac, av);
+	in_r.fp = fp_r;
+	in_r.ch_num = 1;
+
+	while(1){
+		double v[2];
+		if(in_do(&in_l, &v[0]) == EOF) break;
+		if(in_do(&in_r, &v[1]) == EOF) break;
+		out_do2(&otr, v);
+	}
+
+	fclose(fp_l);
+	fclose(fp_r);
+	return 0;
+}
diff -urN midi_prog-/tool.c midi_prog/tool.c
--- midi_prog-/tool.c	2015-08-22 00:00:00.000000000 +0900
+++ midi_prog/tool.c	2015-08-25 00:00:00.000000000 +0900
@@ -55,51 +55,6 @@
 	int j, js, je;
 	char s[32];
 	double sec = pd->oldest.sec;
-	int test_off = opt_idx("-test_off", ac, av) > 0;
-	struct{
-		int stat;
-		double v;
-	} *wk;
-
-	if((wk = malloc(sizeof(*wk) * pd->m)) == NULL) ERR("No Mem");
-
-	for(j=0; j<pd->m; j++){
-		struct pitch *p = &pd->arr[j];
-		wk[j].stat = 0;
-		wk[j].v = tbuf_get_dbl(&p->ab.tb, sec);
-	}
-
-	while(!test_off){
-		int t = -1, j;
-		double v_max = 0;
-		for(j=0; j<pd->m; j++){
-			if(wk[j].stat != 0) continue;
-			if(t < 0 || wk[j].v > v_max){
-				t = j;
-				v_max = wk[j].v;
-			}
-		}
-		if(t < 0) break;
-		wk[t].stat++;
-		
-		for(j=0; j<pd->m; j++){
-			double a, x, k;
-
-			if(wk[j].stat != 0) continue;
-
-			/*			
-			wn/(2*freq) = (wn+a)/(2*freq[j])
-			a = wn*freq[j]/freq - wn
-			  = wn*(freq[j]/freq - 1)
-			*/
-			a = pd->arr[t].wn * (pd->arr[j].freq / pd->arr[t].freq - 1);
-			x = a * M_PI;
-			k = sin(x) / x;
-			k = k < 0 ? -k : k;
-
-			wk[j].v -= wk[t].v * k;
-		}
-	}
 
 	sprintf(s, "sec=%f ", sec);
 	printf("%s", s);
@@ -107,7 +62,8 @@
 	show_spectre_modify_area(pd, ac, av, s, &js, &je);
 
 	for(j=js; j<je; j++){
-		double v = wk[j].v;
+		struct pitch *p = &pd->arr[j];
+		double v = tbuf_get_dbl(&p->ab.tb, sec);
 		int iv = (int)(10 * v / pd->max_v);
 
 		if(iv < 0) iv = -1;
@@ -117,8 +73,65 @@
 		if(pd->div > 1 && j % pd->div == pd->div-1 && j != je-1) putchar(' ');
 	}
 	putchar('\n');
+}
+
+#define NOTE_N		128
 
-	free(wk);
+struct chatt{
+	double lmt_sec, sec, chg_try_sec;
+	int onoff;
+} chatt[ NOTE_N ];
+
+void
+chatt_init(struct chatt *ct, double lmt_sec)
+{
+	ct->lmt_sec = lmt_sec;
+	ct->sec = 0;
+	ct->chg_try_sec = -1;
+	ct->onoff = 0;
+}
+
+int
+chatt_add(struct chatt *ct, double sec, int onoff)
+{
+	if(onoff == ct->onoff){
+		ct->chg_try_sec = -1;
+		return 0;
+	}
+	if(sec - ct->sec < ct->lmt_sec) return 0;
+
+	if(ct->chg_try_sec < 0){
+		ct->chg_try_sec = sec;
+		return 0;
+	}
+	if(sec - ct->chg_try_sec < ct->lmt_sec) return 0;	
+
+	ct->sec = ct->chg_try_sec;
+	ct->onoff = onoff;
+	ct->chg_try_sec = -1;
+	return 1;
+}
+
+static void
+midi_out(struct pitdet *pd)
+{
+	double sec = pd->oldest.sec;
+	int i, k;
+	int tick, ch = 0, velo = 100;
+
+	for(i=0; i<NOTE_N; i++){
+		int onoff = 0;
+		for(k=0; k<pd->div; k++){
+			int j = i * pd->div + k;
+			onoff |= pitdet_onoff(pd, sec, j, NULL);
+		}
+		if(!chatt_add(&chatt[i], sec, onoff)) continue;
+
+		tick = pitdet_sec_to_tick(pd, chatt[i].sec);
+		printf("abs=%08d %s ch=%d note=%d velo=%d\n",
+		       tick, chatt[i].onoff ? "on " : "off", ch, i, velo);
+		fflush(stdout);
+	}
 }
 
 int
@@ -126,20 +139,36 @@
 {
 	in_rec_t in;
 	double v;
+	int i;
 
 	struct pitdet pd;
 	int adj_cent = opt_int("-adj_cent", ac, av, 0);
 	int div = opt_int("-div", ac, av, 1);
 	double abuf_wsec = opt_double("-abuf_wsec", ac, av, 2.5);
+	int show = opt_idx("-show", ac, av) > 0;
+	int midi = opt_idx("-midi", ac, av) > 0;
+	double lmt_sec = opt_double("-lmt_sec", ac, av, 2.0/32);
+	double thres = opt_double("-thres", ac, av, 0.1);
+	int sec, s;
+
+	for(i=0; i<NOTE_N; i++) chatt_init(&chatt[i], lmt_sec);
 
 	in_init(&in, ac, av);
-	pitdet_init(&pd, in.smp_freq, adj_cent, div, abuf_wsec);
+	pitdet_init(&pd, in.smp_freq, adj_cent, div, abuf_wsec, thres);
 
 	while(in_do_mono(&in, &v) != EOF){
 		pitdet_add(&pd, v);
 		if(!pd.oldest.update) continue;
+
+		if((s = (int)pd.oldest.sec) != sec){
+			sec = s;
+			fprintf(stderr, "%d sec   \r", sec);
+		}
+
 		if(pd.oldest.sec < 0) continue;
-		show_spectre(&pd, ac, av);
+
+		if(show) show_spectre(&pd, ac, av);
+		if(midi) midi_out(&pd);
 	}
 	return 0;
 }
diff -urN midi_prog-/util.c midi_prog/util.c
--- midi_prog-/util.c	2015-06-21 00:00:00.000000000 +0900
+++ midi_prog/util.c	2015-08-25 00:00:00.000000000 +0900
@@ -126,4 +126,31 @@
 	return arr;
 }
 
+int
+dbl_max_idx(double *p, int next_bytes, int n, double *ret_v)
+{
+	int idx = 0, i;
+	double max_v = *p, v;
+	p = (double *)( (char *)p + next_bytes );
+	for(i=1; i<n; i++){
+		v = *p;
+		if(v > max_v){
+			max_v = v;
+			idx = i;
+		}
+		p = (double *)( (char *)p + next_bytes );
+	}
+	if(ret_v) *ret_v = max_v;
+	return idx;
+}
+
+FILE *
+fp_get(char *key, int ac, char **av, char *def_fn, char *mode)
+{
+	char *fn = opt_str(key, ac, av, def_fn);
+	if(fn == NULL) return NULL;
+	if(strcmp(fn, "-") == 0) return strcmp(mode, "r") == 0 ? stdin : stdout;
+	return fopen(fn, mode);
+}
+
 /* EOF */
diff -urN midi_prog-/util.h midi_prog/util.h
--- midi_prog-/util.h	2015-06-21 00:00:00.000000000 +0900
+++ midi_prog/util.h	2015-08-25 00:00:00.000000000 +0900
@@ -16,6 +16,9 @@
 
 #define ARR_N(arr)		( sizeof (arr) / sizeof *(arr) )
 #define MIX(a, b, rate)		( (a) * (1 - (rate)) + (b) * (rate) )
+#define ABS(v)			( (v) < 0 ? -(v) : (v) )
+#define MAX(a, b)		( (a) > (b) ? (a) : (b) )
+#define MIN(a, b)		( (a) < (b) ? (a) : (b) )
 
 int opt_idx(char *key, int ac, char **av);
 char *opt_str(char *key, int ac, char **av, char *def);
@@ -40,4 +43,8 @@
 int stklst_allsize(struct stklst *p);
 void *stklst_to_arr(struct stklst *p);
 
+int dbl_max_idx(double *p, int next_bytes, int n, double *ret_v);
+
+FILE *fp_get(char *key, int ac, char **av, char *def_fn, char *mode);
+
 #endif
diff -urN midi_prog-/voco.c midi_prog/voco.c
--- midi_prog-/voco.c	2015-06-09 00:00:00.000000000 +0900
+++ midi_prog/voco.c	2015-08-25 00:00:00.000000000 +0900
@@ -18,15 +18,6 @@
 	double v_c[2], v_v[2];
 } *voco_inf;
 
-FILE *
-fp_get(char *key, int ac, char **av, char *def_fn, char *mode)
-{
-	char *fn = opt_str(key, ac, av, def_fn);
-	if(fn == NULL) return NULL;
-	if(strcmp(fn, "-") == 0) return strcmp(mode, "r") == 0 ? stdin : stdout;
-	return fopen(fn, mode);
-}
-
 double *
 adj_vol_init(int ac, char **av)
 {