diff --git i/jni/mdxmini/src/mdxmini.c w/jni/mdxmini/src/mdxmini.c
index a5bb8e3..dd7a89e 100755
--- i/jni/mdxmini/src/mdxmini.c
+++ w/jni/mdxmini/src/mdxmini.c
@@ -199,7 +199,7 @@ void mdx_set_dir ( t_mdxmini *data , char  * dir )
 
 void mdx_set_rate( int freq )
 {
-	dsp_speed = freq;
+	dsp_speed = freq > 192000 ? 192000 : freq;
 }
 
 void mdx_set_max_loop(t_mdxmini *data , int loop)
diff --git i/jni/mdxmini/src/pcm8.c w/jni/mdxmini/src/pcm8.c
index 940f90a..f7c8003 100755
--- i/jni/mdxmini/src/pcm8.c
+++ w/jni/mdxmini/src/pcm8.c
@@ -199,7 +199,7 @@ int pcm8_open( MDX_DATA *mdx, songdata *data )
   self->pcm_buffer = NULL;
 
 
-  self->sample_buffer_size = 1024;
+  self->sample_buffer_size = 13312;
   //  self->dsp_speed * PCM8_SYSTEM_RATE / 1000;
 
   if ( self->is_encoding_stereo == FLAG_TRUE ) {