diff --git a/.gitignore b/.gitignore
index 1da11ec..ad2c623 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,5 @@ audio/*.wav
 ui/log.*
 ui/t
 
+Beep/alguabeep
+
diff --git a/Beep/Makefile b/Beep/Makefile
new file mode 100644
index 0000000..bc01e2e
--- /dev/null
+++ b/Beep/Makefile
@@ -0,0 +1,34 @@
+
+
+CC	= gcc
+CCOPT	= -Wall -O3 -g -DDEBUG_LEVEL=0 
+
+# -------------------------------------------------------
+
+all:	alguabeep
+
+# -------------------------------------------------------
+
+process.o:	process.c process.h Makefile
+	$(CC) $(CCOPT) -c $<
+
+funcs.o:	funcs.c funcs.h Makefile
+	$(CC) $(CCOPT) -c $<
+
+display.o:	display.c funcs.h Makefile
+	$(CC) $(CCOPT) -c $<
+
+controls.o:	controls.c controls.h Makefile
+	$(CC) $(CCOPT) -c $<
+
+alguabeep.o:	alguabeep.c process.h controls.h Makefile
+	$(CC) $(CCOPT) -c $<
+
+alguabeep:	process.o alguabeep.o funcs.o display.o controls.o
+	$(CC) $(CCOPT) $^ -lao -lv4l2 -lcurses -lm -lpthread -o $@	
+
+# -------------------------------------------------------
+
+
+
+
diff --git a/Beep/alguabeep.c b/Beep/alguabeep.c
new file mode 100644
index 0000000..19f0f0c
--- /dev/null
+++ b/Beep/alguabeep.c
@@ -0,0 +1,275 @@
+   /* V4L2 video picture grabber
+       Copyright (C) 2009 Mauro Carvalho Chehab <mchehab@infradead.org>
+
+       This program is free software; you can redistribute it and/or modify
+       it under the terms of the GNU General Public License as published by
+       the Free Software Foundation version 2 of the License.
+
+       This program is distributed in the hope that it will be useful,
+       but WITHOUT ANY WARRANTY; without even the implied warranty of
+       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+       GNU General Public License for more details.
+     */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include  <curses.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/mman.h>
+#include <linux/videodev2.h>
+#include <libv4l2.h>
+
+#define CLEAR(x) memset(&(x), 0, sizeof(x))
+
+#include  "process.h"
+#include  "funcs.h"
+#include  "controls.h"
+
+struct buffer {
+	void   *start;
+	size_t length;
+	};
+
+int		verbosity;
+
+/* --------------------------------------------------------------------- */
+double dtime(void)
+{
+struct timeval	tv;
+int		foo;
+
+foo = gettimeofday(&tv, NULL);
+if (foo) fprintf(stderr, "got %d in %s\n", foo, __func__);
+
+return (double)tv.tv_sec + (double)tv.tv_usec / 1e6;
+}
+/* --------------------------------------------------------------- */
+static void xioctl(int fh, int request, void *arg)
+{
+int r;
+
+do	{
+	r = v4l2_ioctl(fh, request, arg);
+	} while (r == -1 && ((errno == EINTR) || (errno == EAGAIN)));
+
+if (r == -1) {
+	fprintf(stderr, "error %d, %s\n", errno, strerror(errno));
+	exit(EXIT_FAILURE);
+	}
+}
+/* --------------------------------------------------------------------- */
+void help(int v)
+{
+puts("options :");
+puts("\t-d /dev/?\tselect video device");
+puts("\t-I\t\ttake pictures");
+puts("\t-K\t\tset the K parameter");
+puts("\t-n NNN\t\thow many frames ?");
+puts("\t-p NNN\t\tperiod in seconds");
+puts("\t-s WxH\t\tset capture size");
+puts("\t-v\t\tincrease verbosity");
+exit(0);
+}
+/* --------------------------------------------------------------------- */
+
+int main(int argc, char **argv)
+{
+struct v4l2_format              fmt;
+struct v4l2_buffer              buf;
+struct v4l2_requestbuffers      req;
+enum v4l2_buf_type              type;
+fd_set                          fds;
+struct timeval                  tv;
+int                             r, fd = -1;
+unsigned int                    i, n_buffers;
+char                            *dev_name = "/dev/video0";
+char                            out_name[256], chaine[100];
+FILE                            *fout;
+struct buffer                   *buffers;
+
+int		period = 0;		/* delai entre les captures */
+int		nbre_capt = 1;		/* nombre de captures */
+int		opt, foo;
+int		K = 100;
+int		mk_img = 0;
+int		width=640, height=480;
+
+double			t_debut, t_fin;
+
+while ((opt = getopt(argc, argv, "d:hIK:n:p:v")) != -1) {
+	switch(opt) {
+		case 'd':	dev_name = optarg;		break;
+		case 'h':	help(0);			break;
+		case 'I':	mk_img = 1;			break;
+		case 'K':	K = atoi(optarg);		break;
+		case 'n':	nbre_capt = atoi(optarg);	break;
+		case 'p':	period = atoi(optarg);		break;
+		case 'v':	verbosity++;			break;
+		}
+	}
+
+
+fprintf(stderr, "pid of %s is %d\n", argv[0], getpid());
+
+fd = v4l2_open(dev_name, O_RDWR | O_NONBLOCK, 0);
+if (fd < 0) {
+	perror("Cannot open device");
+	exit(EXIT_FAILURE);
+	}
+
+foo = set_controls(fd, 127, 127);
+fprintf(stderr, "reset controls -> %d\n", foo);
+
+foo = init_process(K);
+fprintf(stderr, "init process -> %d\n", foo);
+
+CLEAR(fmt);
+fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+fmt.fmt.pix.width       = 1920;
+fmt.fmt.pix.height      = 1080;
+fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB24;
+fmt.fmt.pix.field       = V4L2_FIELD_INTERLACED;
+xioctl(fd, VIDIOC_S_FMT, &fmt);
+if (fmt.fmt.pix.pixelformat != V4L2_PIX_FMT_RGB24) {
+	printf("Libv4l didn't accept RGB24 format. Can't proceed.\n");
+	exit(EXIT_FAILURE);
+	}
+
+if ((fmt.fmt.pix.width != 640) || (fmt.fmt.pix.height != 480)) {
+	fprintf(stderr, "Warning: driver is sending image at %dx%d\n",
+			    fmt.fmt.pix.width, fmt.fmt.pix.height);
+	}
+
+CLEAR(req);
+req.count = 2;
+req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+req.memory = V4L2_MEMORY_MMAP;
+xioctl(fd, VIDIOC_REQBUFS, &req);
+
+buffers = calloc(req.count, sizeof(*buffers));
+for (n_buffers = 0; n_buffers < req.count; ++n_buffers) {
+	CLEAR(buf);
+
+	buf.type        = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	buf.memory      = V4L2_MEMORY_MMAP;
+	buf.index       = n_buffers;
+
+	xioctl(fd, VIDIOC_QUERYBUF, &buf);
+
+	buffers[n_buffers].length = buf.length;
+	buffers[n_buffers].start = v4l2_mmap(NULL, buf.length,
+				PROT_READ | PROT_WRITE, MAP_SHARED,
+				fd, buf.m.offset);
+
+	if (MAP_FAILED == buffers[n_buffers].start) {
+		perror("mmap");
+		exit(EXIT_FAILURE);
+		}
+	}
+
+for (i = 0; i < n_buffers; ++i) {
+	CLEAR(buf);
+	buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	buf.memory = V4L2_MEMORY_MMAP;
+	buf.index = i;
+	xioctl(fd, VIDIOC_QBUF, &buf);
+	}
+
+if (nbre_capt)	fprintf(stderr, "running for %d frames\n", nbre_capt);
+else		fprintf(stderr, "just one shoot...\n");
+t_debut = dtime();
+
+foo = lancement_thread_son(0);
+
+initialise_ecran(0);
+
+type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+xioctl(fd, VIDIOC_STREAMON, &type);
+
+sprintf(chaine, "entering main loop, %d iters\n", nbre_capt);
+mvaddstr(1, 0, chaine);
+refresh();
+fprintf(stderr, "%s\n", chaine);
+
+
+for (i = 0; i < nbre_capt; i++) {
+	do	{
+		FD_ZERO(&fds);
+		FD_SET(fd, &fds);
+
+		/* Timeout. */
+		tv.tv_sec = 2;
+		tv.tv_usec = 0;
+
+		r = select(fd + 1, &fds, NULL, NULL, &tv);
+		} while ((r == -1 && (errno = EINTR)));
+
+	if (r == -1) {
+		perror("select");
+		return errno;
+		}
+
+	CLEAR(buf);
+	buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	buf.memory = V4L2_MEMORY_MMAP;
+	xioctl(fd, VIDIOC_DQBUF, &buf);
+#if DEBUG_LEVEL > 1
+	fprintf(stderr, "buf.bytesused %d\n", buf.bytesused);
+#endif
+
+	if ( period!=0 || 0==(i%10) ) {
+		sprintf(chaine, "frame %d  %8.1fs", i, dtime()-t_debut);
+		mvaddstr(1, 50, chaine);
+		}
+
+	foo = charcuteur(buffers[buf.index].start, 
+			fmt.fmt.pix.width, fmt.fmt.pix.height, K);
+
+//	foo = process(buffers[buf.index].start, 
+//			fmt.fmt.pix.width, fmt.fmt.pix.height, K);
+
+	if (mk_img) {
+		sprintf(out_name, "i/out%04d.ppm", i);
+		if (verbosity) fprintf(stderr, "--> %s\n", out_name);
+
+		fout = fopen(out_name, "w");
+		if (!fout) {
+			perror(out_name);
+			exit(EXIT_FAILURE);
+			}
+		fprintf(fout, "P6\n%d %d 255\n",
+			    fmt.fmt.pix.width, fmt.fmt.pix.height);
+		fwrite(buffers[buf.index].start, buf.bytesused, 1, fout);
+		fclose(fout);
+		}
+
+	if (nbre_capt > 1 && period) {
+		sleep(period);
+		}
+
+	xioctl(fd, VIDIOC_QBUF, &buf);
+}
+
+t_fin = dtime();
+
+if (nbre_capt > 0) {
+	fprintf(stderr, "%f frames per second\n",
+		(double)nbre_capt/(t_fin-t_debut));
+	}
+
+type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+xioctl(fd, VIDIOC_STREAMOFF, &type);
+for (i = 0; i < n_buffers; ++i) {
+	v4l2_munmap(buffers[i].start, buffers[i].length);
+	}
+
+endwin();
+v4l2_close(fd);
+
+return 0;
+}
diff --git a/Beep/controls.c b/Beep/controls.c
new file mode 100644
index 0000000..6a024d1
--- /dev/null
+++ b/Beep/controls.c
@@ -0,0 +1,71 @@
+
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <unistd.h>
+#include  <errno.h>
+#include <sys/ioctl.h>
+
+#include  <string.h>
+
+#include <linux/videodev2.h>
+#include <libv4l2.h>
+
+#include  "controls.h"
+
+extern int verbosity;
+
+int set_controls(int fd, int brightness, int contrast)
+{
+struct v4l2_queryctrl queryctrl;
+struct v4l2_control control;
+
+memset (&queryctrl, 0, sizeof (queryctrl));
+queryctrl.id = V4L2_CID_BRIGHTNESS;
+
+if (-1 == ioctl (fd, VIDIOC_QUERYCTRL, &queryctrl)) {
+	if (errno != EINVAL) {
+		perror ("VIDIOC_QUERYCTRL");
+		exit (EXIT_FAILURE);
+	} else {
+		printf ("V4L2_CID_BRIGHTNESS is not supported\n");
+	}
+} else if (queryctrl.flags & V4L2_CTRL_FLAG_DISABLED) {
+	printf ("V4L2_CID_BRIGHTNESS is not supported\n");
+} else {
+	memset (&control, 0, sizeof (control));
+	control.id = V4L2_CID_BRIGHTNESS;
+	control.value = queryctrl.default_value;
+
+	if (-1 == ioctl (fd, VIDIOC_S_CTRL, &control)) {
+		perror ("VIDIOC_S_CTRL");
+		exit (EXIT_FAILURE);
+	}
+}
+
+memset (&control, 0, sizeof (control));
+control.id = V4L2_CID_CONTRAST;
+
+if (0 == ioctl (fd, VIDIOC_G_CTRL, &control)) {
+	control.value += 1;
+
+	/* The driver may clamp the value or return ERANGE, ignored here */
+
+	if (-1 == ioctl (fd, VIDIOC_S_CTRL, &control)
+	    && errno != ERANGE) {
+		perror ("VIDIOC_S_CTRL");
+		exit (EXIT_FAILURE);
+	}
+/* Ignore if V4L2_CID_CONTRAST is unsupported */
+} else if (errno != EINVAL) {
+	perror ("VIDIOC_G_CTRL");
+	exit (EXIT_FAILURE);
+}
+
+control.id = V4L2_CID_AUDIO_MUTE;
+control.value = 1; /* silence */
+
+/* Errors ignored */
+ioctl (fd, VIDIOC_S_CTRL, &control);
+
+return 0;
+}
diff --git a/Beep/controls.h b/Beep/controls.h
new file mode 100644
index 0000000..504d1aa
--- /dev/null
+++ b/Beep/controls.h
@@ -0,0 +1,6 @@
+/*
+ *		various V4L2 functions
+ */
+
+		/* not very tested */
+int set_controls(int fd, int brightness, int contrast);
diff --git a/Beep/display.c b/Beep/display.c
new file mode 100644
index 0000000..31c246a
--- /dev/null
+++ b/Beep/display.c
@@ -0,0 +1,38 @@
+
+#include  <stdio.h>
+#include  <unistd.h>
+#include  <stdlib.h>
+
+#include  <curses.h>
+
+#include  "funcs.h"
+
+/* ---------------------------------------------------------------- */
+int initialise_ecran(int type)
+{
+char	chaine[100];
+
+initscr();
+nonl();         cbreak();       noecho();
+keypad(stdscr, TRUE);           /* acces aux touches 'curseur' */
+
+atexit(finish);
+
+sprintf(chaine, " alguabeep (%s %s) pid=%d \n", __DATE__, __TIME__,
+						getpid());
+standout(); mvaddstr(0, 0, chaine); standend();
+
+refresh();
+
+return 0;
+}
+/* ---------------------------------------------------------------- */
+void finish(void)
+{
+endwin();       
+fprintf(stderr, "end of pid %d\n", getpid());
+exit(0);
+}
+
+/* ---------------------------------------------------------------- */
+/* ---------------------------------------------------------------- */
diff --git a/Beep/funcs.c b/Beep/funcs.c
new file mode 100644
index 0000000..9d8db55
--- /dev/null
+++ b/Beep/funcs.c
@@ -0,0 +1,48 @@
+/*
+ *	algua beep module
+ */
+
+#include  <stdio.h>
+#include  <string.h>
+#include <unistd.h>
+
+#include  "funcs.h"
+
+/* --------------------------------------------------------------------- */
+/*
+ *
+ *	valeur retournee entre 0 et 255
+ */
+double niveau_zone(unsigned char *datas, int w, int h, Rect *rp)
+{
+unsigned char	*bptr;
+
+int		niveau = 0;
+
+int		lig, col;
+int		l2, c2, off;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %d %d %p )\n", __func__, datas, w, h, rp);
+fprintf(stderr, "  > x %d  y %d  w %d  h %d\n", rp->x, rp->y, rp->w, rp->h);
+#endif
+
+l2 = (rp->y+rp->h);
+c2 = (rp->x+rp->w);
+
+for (lig=rp->y; lig<l2; lig++) {
+	
+	off = (3*w*lig) + (3*rp->x);		/* WTF ? */
+	bptr = datas + off;
+
+	for (col=rp->x; col<c2; col++) {
+
+		niveau += *(bptr+2);	/* add value to sum */
+		bptr += 3;		/* next pixel */
+
+		}
+	}
+
+return (double)niveau / (double)(rp->w * rp->h);
+}
+/* --------------------------------------------------------------------- */
diff --git a/Beep/funcs.h b/Beep/funcs.h
new file mode 100644
index 0000000..ff0029b
--- /dev/null
+++ b/Beep/funcs.h
@@ -0,0 +1,20 @@
+/* --------------------------------------------------------------------- */
+
+typedef struct {
+	int	x, y, w, h;
+	} Rect;
+
+
+/* --------------------------------------------------------------------- */
+/*		image processing				*/
+
+double niveau_zone(unsigned char *datas, int w, int h, Rect *rp);
+
+/* --------------------------------------------------------------------- */
+/*		display module					*/
+
+int initialise_ecran(int type);
+void finish(void);
+
+/* --------------------------------------------------------------------- */
+
diff --git a/Beep/process.c b/Beep/process.c
new file mode 100644
index 0000000..dd753ef
--- /dev/null
+++ b/Beep/process.c
@@ -0,0 +1,302 @@
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <string.h>
+#include <unistd.h>
+#include  <math.h>
+#include <pthread.h>
+#include  <curses.h>
+#include <ao/ao.h>
+
+#include  "process.h"
+#include  "funcs.h"
+
+/* --------------------------------------------------------------------- */
+
+#define IMG_W		32
+#define NB_SLICES	32
+#define TBUFFER		IMG_W*NB_SLICES
+
+extern int		verbosity;
+
+short			samples[TBUFFER*2];
+static ao_device	*device;
+static ao_sample_format	format;
+static double		debut;
+
+/* --------------------------------------------------------------------- */
+int init_process(int K)
+{
+// int			foo;
+int                     default_driver;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %d )\n", __func__, K);
+#endif
+
+ao_initialize();
+default_driver = ao_default_driver_id();
+#if DEBUG_LEVEL
+fprintf(stderr, "%s : ao default driver #%d\n", __func__, default_driver);
+#endif
+
+memset(&format, 0, sizeof(format));
+format.bits = 16;
+format.channels = 2;
+format.rate = 44100;
+format.byte_format = AO_FMT_LITTLE;
+device = ao_open_live(default_driver, &format, NULL);
+if (device == NULL) {
+        fprintf(stderr, "Error opening AO device.\n");
+        return -1;
+        }
+
+memset(samples, 0, sizeof(samples));
+
+return 0;
+}
+/* --------------------------------------------------------------------- */
+/*	recherche de zones
+ */
+
+typedef struct	{
+	int		x, y;
+	double		v;
+	} Datum;
+
+static int cmp_datums(const void *a, const void *b)
+{
+Datum	*pa = (Datum *)a;
+Datum	*pb = (Datum *)b;
+return pa->v < pb->v;
+}
+
+static void pr_idx(int idx, int stand)
+{
+char		chaine[100];
+if (stand)	standout();
+sprintf(chaine, "[%03d]", idx);
+addstr(chaine);
+if (stand)	standend();
+}
+
+static double i2freq(int i)
+{
+i = 333+i*42;
+
+if (0==i)	abort();
+
+return 30.0* (1.0 / (double)i);
+}
+
+static int generate_samples(short *where, int size, Datum *datas)
+{
+int		loop;
+short		value;
+double		vol;
+char		chaine[100];
+
+#if DEBUG_LEVEL > 1
+fprintf(stderr, ">>> %s ( %p %d %p )\n", __func__,
+			where, size, datas);
+#endif
+
+for (loop=0; loop<size; loop++) {
+
+	/* LEFT */
+	vol = 10000.0 * pow(datas[0].v / 256.0, 2.0);
+	value = (short)(sin((double)loop*i2freq(datas[0].y)) * vol);
+	*where++ = value;
+
+	/* RIGHT */
+	vol = 10000.0 * pow(datas[1].v / 256.0, 2.0);
+	value = (short)(sin((double)loop*i2freq(datas[1].y)) * vol);
+	*where++ = value;
+
+	}
+
+sprintf(chaine, "sample %6.3f    = %7d", vol, value);
+mvaddstr(35, 0, chaine);
+
+return 0;
+}
+
+
+
+int charcuteur(unsigned char *datas, int w, int h, int K)
+{
+int		bigR, bigC, idx;
+int		nbR, nbC;
+double		value;
+Rect		rect;
+Datum		vals[5000];
+char		chaine[100];
+
+#define   W 80			/* size of rectangular AOIs */
+#define   H 40
+
+#define   SL 4			/* position of display */
+#define   SC 2
+#define   DL 1			/* displacement factor */
+#define   DC 5
+
+idx = 0;
+rect.h = H;		rect.w = W;
+nbR = h / H;		nbC = w / W;
+
+#if DEBUG_LEVEL
+sprintf(chaine, "%s   %4d %4d   %3d %3d\n", __func__, w, h, nbC, nbR);
+mvaddstr(2, 0, chaine); 
+#endif
+
+for (bigR=0; bigR<nbR; bigR++) {
+	rect.y = bigR * H;
+	for (bigC=0; bigC<nbC; bigC++) {
+
+		rect.x = bigC * W;
+		value = niveau_zone(datas, w, h, &rect);
+		vals[idx].x = bigC;	vals[idx].y = bigR;		
+		vals[idx].v = value;
+
+		sprintf(chaine, "%4.0f", value);
+		mvaddstr(SL+1+bigR*DL, SC+bigC*DC, chaine);
+		idx++;
+#if DEBUG_LEVEL
+		fprintf(stderr, "%s %6d %6d %6d\n", __func__, bigR, bigC, idx);
+#endif
+		}
+	}
+
+qsort(vals, nbR*nbC, sizeof(Datum), cmp_datums);
+
+for (idx=0; idx<16; idx++) {
+	sprintf(chaine, "%2d %2d  %6.2f", vals[idx].x, vals[idx].y,
+					vals[idx].v);
+	mvaddstr(5+idx, 130, chaine);
+	}
+
+/*		*** sound generator ***/
+generate_samples(samples, TBUFFER, vals);
+
+/* marquer les points les plus brillants */
+standout();
+sprintf(chaine, "%4.0f", vals[0].v);
+mvaddstr(SL+1+vals[0].y*DL, SC+vals[0].x*DC, chaine);
+sprintf(chaine, "%4.0f", vals[1].v);
+mvaddstr(SL+1+vals[1].y*DL, SC+vals[1].x*DC, chaine);
+standend(); move(0, 0); refresh();
+
+return -1;
+}
+/* --------------------------------------------------------------------- */
+/*
+ *	extraction de ligne - to be continued
+ */
+
+
+/* --------------------------------------------------------------------- */
+/*
+ *	entry point from the main loop
+ */
+int process(unsigned char *datas, int w, int h, int K)
+{
+short			*ptr, value;
+int			sl, foo,  minv, maxv;
+unsigned int		idata;
+double			kv;
+double			v_left, v_right;
+Rect			z_left, z_right;
+char			ligne[200];
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %dx%d %d )\n", __func__, datas, w, h, K);
+#endif
+
+minv = maxv = 0;
+kv = (double)K;
+
+z_left.x = 50;			z_left.y = 30;
+z_left.w = 500;			z_left.h = 100;
+v_left = kv * pow((niveau_zone(datas, w, h, &z_left) / 256.0), 2.0);
+
+z_right.x = 50;			z_right.y = 300;
+z_right.w = 500;		z_right.h = 100;
+v_right = kv * pow((niveau_zone(datas, w, h, &z_right) / 256.0), 2.0);
+
+sprintf(ligne, "values  %10.3f  %10.3f", v_left, v_right);
+mvaddstr(1, 43, ligne);
+
+refresh();
+
+ptr = samples;
+for (sl=0; sl<NB_SLICES; sl++) {
+	for (foo=0; foo<IMG_W; foo+=2)
+		{
+		/* calcul position dans l'image */
+		idata = (foo*3) + (w*3*100);
+
+		value = (short)(v_left  * ((double)datas[idata+1]-127.0));
+		if (value < minv)	minv = value;
+		else if (value > maxv)	maxv = value;
+		*ptr++ = value;
+
+		value = (short)(v_right * ((double)datas[idata+2]-127.0));
+		if (value < minv)	minv = value;
+		else if (value > maxv)	maxv = value;
+		*ptr++ = value;
+		}
+	}
+
+// puts("");
+
+if (verbosity) {
+	sprintf(ligne, "  min %6d max %6d\n", minv, maxv);
+	mvaddstr(11, 3, ligne);
+	refresh();
+	}
+
+return 0;
+}
+/* --------------------------------------------------------------------- */
+void * thr_action(void *ptr)
+{
+long		idx;
+// int		foo;
+
+// #if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p )\n", __func__, ptr);
+fprintf(stderr, "    value is %d\n", *(int *)ptr);
+// #endif
+
+while(1) {
+	if (verbosity > 1) {
+		fprintf(stderr, "%s t=%g\n", __func__, dtime() - debut);
+		}
+
+	for (idx=0; idx<100; idx++) {
+		ao_play(device, (char *)samples, TBUFFER*2);
+		}		
+	}
+
+return NULL;
+}
+/* --------------------------------------------------------------------- */
+int lancement_thread_son(int k)
+{
+static pthread_t        thread;
+static int		pid;
+int			foo;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %d )\n", __func__, k);
+#endif
+
+debut = dtime();
+
+/* lancement du thread de rendu sonore */
+pid = getpid();
+foo = pthread_create(&thread, NULL, thr_action, &pid);
+fprintf(stderr, "thread creation -> %d\n", foo);
+
+return 0;
+}
+/* --------------------------------------------------------------------- */
diff --git a/Beep/process.h b/Beep/process.h
new file mode 100644
index 0000000..d73c02f
--- /dev/null
+++ b/Beep/process.h
@@ -0,0 +1,12 @@
+
+double dtime(void);
+
+int init_process(int K);
+
+int charcuteur(unsigned char *datas, int w, int h, int K);
+
+int process(unsigned char *datas, int w, int h, int K);
+
+int lancement_thread_son(int k);
+
+
diff --git a/gnocchi/README.md b/gnocchi/README.md
deleted file mode 100644
index 5152bab..0000000
--- a/gnocchi/README.md
+++ /dev/null
@@ -1,22 +0,0 @@
-# Gnocchi
-
-## blabla commercial
-
-<<<<<<< HEAD
-
-
-_The problem that [Gnocchi](https://gnocchi.xyz/) solves is the storage and indexing of
-time series data and resources at a large scale.
-=======
-_The problem that [Gnocchi](https://gnocchi.xyz/) solves is the storage and
-indexing of time series data and resources at a large scale.
->>>>>>> b47e467d21cec6ee688b4407d3ec54fa33e67ba6
-This is useful in modern cloud platforms which are not only huge
-but also are dynamic and potentially multi-tenant.
-Gnocchi takes all of that into account._
-
-Bref, il faut essayer ce truc. Un de ces jours...
-
-`pip install gnocchi[postgresql,ceph,keystone]`
-bon, on va peut-être attendre :)
-
diff --git a/influxdb/README.md b/influxdb/README.md
deleted file mode 100644
index f949aa4..0000000
--- a/influxdb/README.md
+++ /dev/null
@@ -1,25 +0,0 @@
-## InfluxDB
-
-# Blabla commercial
-
-_Time Series Databases have to deal with specific workloads and requirements.
-They need to ingest millions of data points per second; to perform real-time
-queries across these large data sets in a non-blocking manner; to downsample
-and evict high-precision low-value data; to optimize data storage to reduce
-storage costs; and to perform complex time-bound queries to extract meaningful
-insight from the data. It is possible to meet these requirements only with a
-purpose-built platform that InfluxData provides._
-
-# On essaye ?
-
-Ok, c'est parti. Premier souci, la documentation est assez légère.
-
-
-On va tenter d'écrire un injecteur en Perl. Puis enchainer sur
-une visualisation dynamique des données en lancer de rayon.
-Projet ambitieux ? Non, la suite sera bien pire.
-
-
-
-
-
diff --git a/influxdb/create.sh b/influxdb/create.sh
deleted file mode 100755
index 40c6481..0000000
--- a/influxdb/create.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/bash
-
-#
-# create an inflix databasse
-#
-
-influx -host localhost -port 8086 << __EOC__
-
-settings
-CREATE DATABASE tests
-__EOC__
-
-lynx -head -dump http://localhost:8086/ping?verbose=true
\ No newline at end of file
diff --git a/influxdb/injecteur.pl b/influxdb/injecteur.pl
deleted file mode 100755
index 7a09954..0000000
--- a/influxdb/injecteur.pl
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/perl
-
-use strict;
-
-my $host = "localhost";
-my $port = 8086;
-
-print "injecteur v 0\n";
-
-0;
-
diff --git a/plot.sh b/plot.sh
index ebdea00..4cd1f1e 100755
--- a/plot.sh
+++ b/plot.sh
@@ -18,7 +18,7 @@ wc -l ${DATAFILE}
 tail -${nbsamp} < ${DATAFILE} > ${TMPFILE}
 
 gnuplot << __EOC__
-set term png 	size 1600,800
+set term png 	size 1000,600
 set output 	"${IMAGE}"
 set ytics	2
 set xtics	
diff --git a/storage/Makefile b/storage/Makefile
deleted file mode 100644
index 52142f6..0000000
--- a/storage/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-
-
-t:	t.c Makefile
-	gcc -Wall $< -o $@
diff --git a/storage/t.c b/storage/t.c
deleted file mode 100644
index 9a222b4..0000000
--- a/storage/t.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- *	phytotron - outil de gestion des datas
- */
-
-#include  <stdio.h>
-#include  <stdlib.h>
-#include <unistd.h>
-
-int	verbosity;
-
-/* --------------------------------------------------------------- */
-void help(int k)
-{
-puts("options : ");
-puts("\t-K\tset the K parameter.");
-puts("\t-v\tincrease verbosity.");
-
-exit(0);
-}
-
-/* --------------------------------------------------------------- */
-
-int main(int argc, char *argv[])
-{
-int		opt, foo;
-int		K = 0;
-// char		ligne[100];
-
-while ((opt = getopt(argc, argv, "hKv")) != -1) {
-	switch (opt) {
-		case 'h':	help(0);		break;
-		case 'K':	K = atoi(optarg);	break;
-		case 'v':	verbosity++;		break;
-		default:				break;
-		}
-	}
-
-fprintf(stderr, "*** storage tool   %s %s\n", __DATE__, __TIME__);
-
-return 0;
-}
-
-/* --------------------------------------------------------------- */
-