--- ../cache/libao-1.2.2/src/plugins/pulse/ao_pulse.c	2016-11-14 16:03:30.000000000 +0800
+++ ./src/plugins/pulse/ao_pulse.c	2018-08-02 00:59:31.723282524 +0800
@@ -40,7 +40,7 @@
 #include <ao/ao.h>
 #include <ao/plugin.h>
 
-#define AO_PULSE_BUFFER_TIME 20000
+#define AO_PULSE_BUFFER_TIME 50000
 
 /* Unfortunately libao doesn't allow "const" for these structures... */
 static char * ao_pulse_options[] = {
@@ -255,12 +255,10 @@
     }
 
     /* buffering attributes */
-    battr.prebuf = battr.minreq = battr.fragsize = -1;
+    battr.prebuf = battr.minreq = battr.fragsize = battr.maxlength = -1;
 
-    battr.tlength = (int)(internal->buffer_time * format->rate) / 1000000 *
-      ((format->bits+7)/8) * device->output_channels;
-    battr.minreq = battr.tlength/4;
-    battr.maxlength = battr.tlength+battr.minreq;
+    battr.tlength = internal->buffer_time * format->rate / 1000000 *
+      (format->bits / 8) * device->output_channels;
 
     internal->simple = pa_simple_new(internal->server, t, PA_STREAM_PLAYBACK,
                                      internal->sink, t2, &ss,