diff -r -u esound-0.2.23.orig/esd.c esound-0.2.23/esd.c
--- esound-0.2.23.orig/esd.c	Sun Sep  9 19:56:36 2001
+++ esound-0.2.23/esd.c	Fri Jan 25 01:29:51 2002
@@ -487,7 +487,7 @@
 
     int first = 1;
 
-    int default_format = ESD_BITS16 | ESD_STEREO;
+    int default_format = ESD_BITS8 | ESD_MONO;
     /* end test scaffolding parameters */
 
     /* parse the command line args */
@@ -517,6 +517,9 @@
 	} else if ( !strcmp( argv[ arg ], "-b" ) ) {
 	    fprintf( stderr, "- server format: 8 bit samples\n" );
 	    default_format &= ~ESD_MASK_BITS; default_format |= ESD_BITS8;
+	} else if ( !strcmp( argv[ arg ], "-m" ) ) {
+	    fprintf( stderr, "- server format: mono samples\n" );
+	    default_format &= ~ESD_MASK_CHAN; default_format |= ESD_MONO;
 	} else if ( !strcmp( argv[ arg ], "-r" ) ) {
 	    if ( ++arg != argc ) {
 		default_rate = atoi( argv[ arg ] );
@@ -576,6 +579,7 @@
 	    fprintf( stderr, "Usage: esd [options]\n\n" );
 	    fprintf( stderr, "  -d DEVICE   force esd to use sound device DEVICE\n" );
 	    fprintf( stderr, "  -b          run server in 8 bit sound mode\n" );
+	    fprintf( stderr, "  -m          run server in mono sound mode\n" );
 	    fprintf( stderr, "  -r RATE     run server at sample rate of RATE\n" );
 	    fprintf( stderr, "  -as SECS    free audio device after SECS of inactivity\n" );
 	    fprintf( stderr, "  -unix       use unix domain sockets instead of tcp/ip\n" );
diff -r -u esound-0.2.23.orig/esd.h esound-0.2.23/esd.h
--- esound-0.2.23.orig/esd.h	Sun Nov  5 06:57:58 2000
+++ esound-0.2.23/esd.h	Fri Jan 25 01:29:51 2002
@@ -20,7 +20,7 @@
 #define ESD_DEFAULT_PORT (16001)
 
 /* default sample rate for the EsounD server */
-#define ESD_DEFAULT_RATE (44100)
+#define ESD_DEFAULT_RATE (22050)
 
 /* maximum length of a stream/sample name */
 #define ESD_NAME_MAX (128)
diff -r -u esound-0.2.23.orig/mix.c esound-0.2.23/mix.c
--- esound-0.2.23.orig/mix.c	Mon Sep 20 00:51:34 1999
+++ esound-0.2.23/mix.c	Fri Jan 25 01:29:51 2002
@@ -37,6 +37,7 @@
 
 void clip_mix_to_output_16s( signed short *output, int length );
 void clip_mix_to_output_8u( unsigned char *output, int length );
+void clip_mix_to_output_8u_mono( unsigned char *output, int length );
 
 /* TODO: straighten out the mix algorithm comment annotations */
 /* TOTO: i don't think we're in kansas anymore... */
@@ -870,6 +871,27 @@
 	}
     }
 }
+/*******************************************************************/
+/* takes mixed data, and clips data to the output buffer */
+void clip_mix_to_output_8u_mono( unsigned char *output, int length )
+{
+    signed int *mixed = mixed_buffer;
+    signed int *end = mixed_buffer + length/sizeof(signed short);
+
+    ESDBG_MIXER( printf( "clipping mix to output 8 bit mono (%d bytes)\n", 
+			 length ); );
+    
+    while ( mixed < end ) {
+	if (*mixed < SHRT_MIN) {
+	    *output++ = 0; mixed++;
+	} else if (*mixed > SHRT_MAX) {
+	    *output++ = 255; mixed++;
+	} else {
+	    *output++ = (*mixed++) / 256 + 128;
+	}
+  mixed++;
+    }
+}
 
 /*******************************************************************/
 /* takes all input players, and mixes them to the mixed_buffer */
@@ -919,11 +941,17 @@
 
     /* ESDBG_COMMS( printf( "maximum stream length = %d bytes\n", max ); ); */ 
 
-    if ( (esd_audio_format & ESD_MASK_BITS) == ESD_BITS16 ) 
-	clip_mix_to_output_16s( output, max );
+    if ( (esd_audio_format & ESD_MASK_CHAN) == ESD_STEREO ) {
+      if ( (esd_audio_format & ESD_MASK_BITS) == ESD_BITS16 ) 
+        clip_mix_to_output_16s( output, max );
+      else {
+        clip_mix_to_output_8u( output, max );
+        max /= 2; /* half as many samples as you'd think */
+      }
+    }
     else {
-	clip_mix_to_output_8u( output, max );
-	max /= 2; /* half as many samples as you'd think */
+      clip_mix_to_output_8u_mono( output, max );
+      max /= 4;
     }
 
     return max;
Only in esound-0.2.23: mix.c.orig