diff --git a/src/driver/audiodec/vis.cpp b/src/driver/audiodec/vis.cpp
deleted file mode 100644
index 3369be165..000000000
--- a/src/driver/audiodec/vis.cpp
+++ /dev/null
@@ -1,191 +0,0 @@
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <errno.h>
-#include <pthread.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include <math.h>
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <global.h>
-#include <neutrino.h>
-
-#if HAVE_CST_HARDWARE
-#include <driver/vfd.h>
-#endif
-
-#include "int_fft.c"
-
-typedef signed short gint16;
-typedef int gint;
-typedef float gfloat;
-typedef double gdouble;
-
-#define NUM_BANDS 16
-#define WIDTH (120/NUM_BANDS)
-#define HEIGHT 64
-#define FALL 2
-#define FALLOFF 1
-
-#if 0
-static int bar_heights[NUM_BANDS];
-static int falloffs[NUM_BANDS];
-static gdouble scale = 0;
-
-static gint xscale128[] = { 0, 1, 2, 3, 4, 6, 8, 9, 10, 14, 20, 27, 37, 50, 67, 94, 127 };
-static gint xscale256[] = { 0, 1, 2, 3, 5, 7, 10, 14, 20, 28, 40, 54, 74, 101, 137, 187, 255 };
-static gint xscale512[] = { 0, 2, 4, 6, 10, 14, 20, 28, 40, 56, 80, 108, 148, 202, 274, 374, 510 };
-#endif
-//#define DEBUG
-#if HAVE_DBOX2
-#define SAMPLES 256
-#define LOG 8
-#define xscale xscale128
-#else
-#define SAMPLES 512
-#define LOG 9
-#define xscale xscale256
-#endif
-
-#if 0
-static void do_fft(gint16 out_data[], gint16 in_data[])
-{
-	gint16 im[SAMPLES];
-
-	memset(im, 0, sizeof(im));
-	window(in_data, SAMPLES);
-	fix_fft(in_data, im, LOG, 0);
-	fix_loud(out_data, in_data, im, SAMPLES/2, 0);
-}
-#endif
-//static int threshold = -60;
-void sanalyzer_render_freq (gint16 /*in_data*/[])
-{
-#if 0
-  gint i, c;
-  gint y;
-  gint16 freq_data[1024];
-  static int fl = 0;
-
-#ifdef DEBUG
-struct timeval tv1, tv2;
-gettimeofday (&tv1, NULL);
-#endif
-  do_fft (freq_data, in_data);
-
-  CVFD::getInstance ()->Clear ();
-#ifdef DEBUG
-//gettimeofday (&tv1, NULL);
-#endif
-  for (i = 0; i < NUM_BANDS; i++) {
-	y = 0;
-
-#if 0 // using max value
-        for (c = xscale[i]; c < xscale[i + 1]; c++) {
-          if(freq_data[c] > threshold) {
-            int val = freq_data[c]-threshold;
-            if (val > y)
-                y = val;
-          }
-        }
-#else
-        int val = 0;
-        int cnt = 0;
-        for (c = xscale[i]; c < xscale[i + 1]; c++) {
-          if(freq_data[c] > threshold) {
-            val += freq_data[c]-threshold;
-            cnt++;
-          }
-        }
-        if(cnt) y = val/cnt;
-#endif
-
-	if (y > HEIGHT - 1)
-		y = HEIGHT - 1;
-
-	if (y > bar_heights[i])
-	  bar_heights[i] = y;
-	else if (bar_heights[i] > FALL)
-	  bar_heights[i] -= FALL;
-	else
-	  bar_heights[i] = 0;
-
-	if (y > falloffs[i])
-	  falloffs[i] = y;
-	else if (falloffs[i] > FALLOFF) {
-		fl ++;
-		if(fl > 2) {
-			fl = 0;
-			falloffs[i] -= FALLOFF;
-		}
-	}
-	else
-	  falloffs[i] = 0;
-  	CVFD::getInstance ()->drawBar (i*WIDTH, 64-falloffs[i]-5, WIDTH, 2);
-	y = bar_heights[i];
-  	CVFD::getInstance ()->drawBar (i*WIDTH, 64-y, WIDTH, y);
-  }
-
-#ifdef DEBUG
-gettimeofday (&tv2, NULL);
-printf("Calc takes %dns\n", (tv2.tv_sec - tv1.tv_sec) * 1000000 + (tv2.tv_usec - tv1.tv_usec));
-#endif
-  CVFD::getInstance ()->Update ();
-#endif
-}
-#if 0
-void sanalyzer_render_vu (gint16 in_data[2][512])
-{
-  long delay_value;
-  int a = 0,b = 0, c;
-  float max = 32767.50;
-  float db_min = (float) -91;
-  float channel_data[2] = { 0.0, 0.0};
-  static int olda = 0, oldb = 0;
-return;
-#ifdef DEBUG
-//struct timeval tv1, tv2;
-//gettimeofday (&tv1, NULL);
-#endif
-  for (c = 0; c < 512; c += 2) {
-	channel_data[0] += (float) (in_data[0][c] * in_data[0][c]);
-	channel_data[1] += (float) (in_data[1][c] * in_data[1][c]);
-  }
-  channel_data[0] = 20 * log10 (sqrt (channel_data[0] / 256.0) / max);
-  channel_data[1] = 20 * log10 (sqrt (channel_data[1] / 256.0) / max);
-
-  a = channel_data[0] + 91;
-  b = channel_data[1] + 91;
-//printf ("channel0: %d\n", a);
-//printf ("channel1: %d\n", b);
-#ifdef DEBUG
-//gettimeofday (&tv2, NULL);
-//printf("Calc takes %dms\n", (tv2.tv_sec - tv1.tv_sec) * 1000 + (tv2.tv_usec - tv1.tv_usec) / 1000);
-#endif
-  if(a != olda || b != oldb) {
-  	CVFD::getInstance ()->Clear ();
-  	CVFD::getInstance ()->drawBar (0, 8, a, 20);
-  	CVFD::getInstance ()->drawBar (0, 36, b, 20);
-#ifdef DEBUG
-//gettimeofday (&tv1, NULL);
-#endif
-  	CVFD::getInstance ()->Update ();
-#ifdef DEBUG
-//gettimeofday (&tv2, NULL);
-//int ms = (tv2.tv_sec - tv1.tv_sec) * 1000 + (tv2.tv_usec - tv1.tv_usec) / 1000;
-//if(ms) printf("Update takes %dms\n", ms);
-#endif
-  }
-  return;
-}
-#endif