diff --git a/TOOLS/audio-block2.c b/TOOLS/audio-block2.c
index c3e29fc4b5..6da0cf46cf 100644
--- a/TOOLS/audio-block2.c
+++ b/TOOLS/audio-block2.c
@@ -1,7 +1,8 @@
 // This small util discovers your audio driver's behaviour
 
-#define OUTBURST 512
+//#define OUTBURST 512
 //#define OUTBURST 4096
+#define MAX_OUTBURST 32768
 
 
 #include <stdio.h>
@@ -24,7 +25,7 @@ unsigned int GetTimer(){
   return (tv.tv_sec*1000000+tv.tv_usec);
 }  
 
-static unsigned char a_buffer[OUTBURST];
+static unsigned char a_buffer[MAX_OUTBURST];
 
 void inline print_info(int audio_fd){
 #if 1
@@ -42,6 +43,7 @@ int main(){
   int audio_fd;
   char *dsp="/dev/dsp";
   unsigned int t0,t1,t2;
+  int outburst;
 
   audio_fd=open(dsp, O_WRONLY);
   if(audio_fd<0){
@@ -60,6 +62,7 @@ int main(){
 
   r=0; ioctl (audio_fd, SNDCTL_DSP_GETBLKSIZE, &r);
   printf("fragment size = %d\n",r);
+  outburst=r; if(outburst>4096) outburst=4096;
 
   print_info(audio_fd);
 
@@ -71,17 +74,19 @@ while(xxx-->0){
       struct timeval tv;
       FD_ZERO(&rfds); FD_SET(audio_fd,&rfds);
       tv.tv_sec=0; tv.tv_usec = 0;
-      if(select(audio_fd+1, NULL, &rfds, NULL, &tv)) c=' ';
+//      if(select(audio_fd+1, NULL, &rfds, NULL, &tv)) c=' ';
 
-//    print_info(audio_fd);
+    print_info(audio_fd);
 
-    r=write(audio_fd,a_buffer,OUTBURST);
+    r=0; ioctl (audio_fd, SNDCTL_DSP_GETODELAY, &r); printf("delay = %d\n",r);
+
+    r=write(audio_fd,a_buffer,outburst);
     t2=GetTimer();
     if(r<0) printf("Error writting to device\n"); else
     if(r==0) printf("EOF writting to device???\n"); else {
       printf("%c %6.3f %6.3f  [%6d] writting %3d of %3d bytes in %7d us\n",c,
         (float)audio_buffer_size/(44100.0f*4.0f),(float)(t1-t0)*0.000001f,
-        audio_buffer_size,r,OUTBURST,t2-t1);
+        audio_buffer_size,r,outburst,t2-t1);
       audio_buffer_size+=r;
     }
     t1=t2;