diff --git a/mediastreamer2 b/mediastreamer2
index e9b2d8d4e..f86735388 160000
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit e9b2d8d4e1ce790f72b1c02c3d3242651f22672d
+Subproject commit f867353887f9091d6b16958c3a859be5523ba9f7
diff --git a/tester/call_tester.c b/tester/call_tester.c
index 3deeb560c..55169701a 100644
--- a/tester/call_tester.c
+++ b/tester/call_tester.c
@@ -2415,7 +2415,7 @@ static void call_with_file_player(void) {
 		end_call(marie, pauline);
 		/*cannot run on iphone simulator because locks main loop beyond permitted time (should run
 		on another thread) */
-		BC_ASSERT_EQUAL(ms_audio_diff(hellopath,recordpath,&similar,audio_cmp_max_shift,NULL,NULL), 0, int, "%d");
+		BC_ASSERT_EQUAL(ms_audio_diff(hellopath,recordpath,&similar,&audio_cmp_params,NULL,NULL), 0, int, "%d");
 		if (similar>=threshold)
 			break;
 	}
@@ -2492,7 +2492,7 @@ static void call_with_mkv_file_player(void) {
 	}
 	end_call(marie, pauline);
 #ifdef DO_AUDIO_CMP
-	BC_ASSERT_EQUAL(ms_audio_diff(hellowav,recordpath,&similar,audio_cmp_max_shift,NULL,NULL),0,int,"%d");
+	BC_ASSERT_EQUAL(ms_audio_diff(hellowav,recordpath,&similar,&audio_cmp_params,NULL,NULL),0,int,"%d");
 	BC_ASSERT_GREATER(similar,threshold,double,"%f");
 	BC_ASSERT_LOWER(similar,1.0,double,"%f");
 	if(similar>threshold && similar<=1.0) {
@@ -4326,7 +4326,7 @@ static void simple_stereo_call(const char *codec_name, int clock_rate, int bitra
 			min_threshold = .4f;
 			max_threshold = .6f;
 		}
-		BC_ASSERT_EQUAL(ms_audio_diff(recordpath, stereo_file,&similar,audio_cmp_max_shift,completion_cb,NULL), 0, int, "%d");
+		BC_ASSERT_EQUAL(ms_audio_diff(stereo_file, recordpath,&similar,&audio_cmp_params,completion_cb,NULL), 0, int, "%d");
 		BC_ASSERT_GREATER(similar, min_threshold, double, "%g");
 		BC_ASSERT_LOWER(similar, max_threshold, double, "%g");
 		if (similar<min_threshold || similar>max_threshold){
@@ -4544,7 +4544,7 @@ static void call_with_rtp_io_mode(void) {
 		wait_for_until(pauline->lc,marie->lc,NULL,0,1000);
 		end_call(pauline,marie);
 
-		BC_ASSERT_EQUAL(ms_audio_diff(hellopath, recordpath, &similar, audio_cmp_max_shift, NULL, NULL), 0, int, "%d");
+		BC_ASSERT_EQUAL(ms_audio_diff(hellopath, recordpath, &similar, &audio_cmp_params, NULL, NULL), 0, int, "%d");
 		if (similar>=threshold) break;
 	}
 	BC_ASSERT_GREATER(similar, threshold, double, "%g");
@@ -4819,7 +4819,7 @@ static void custom_rtp_modifier(bool_t pauseResumeTest, bool_t recordTest) {
 		end_call(pauline, marie);
 		
 		// Now we compute a similarity factor between the original file and the one we recorded on the callee side
-		BC_ASSERT_EQUAL(ms_audio_diff(hellopath, recordpath, &similar, audio_cmp_max_shift, NULL, NULL), 0, int, "%d");
+		BC_ASSERT_EQUAL(ms_audio_diff(hellopath, recordpath, &similar, &audio_cmp_params, NULL, NULL), 0, int, "%d");
 		
 		BC_ASSERT_GREATER(similar, threshold, double, "%g");
 		BC_ASSERT_LOWER(similar, 1.0, double, "%g");
diff --git a/tester/liblinphone_tester.h b/tester/liblinphone_tester.h
index c3db2bf5e..264ddf580 100644
--- a/tester/liblinphone_tester.h
+++ b/tester/liblinphone_tester.h
@@ -24,6 +24,7 @@
 
 #include "bc_tester_utils.h"
 #include "linphonecore.h"
+#include <mediastreamer2/msutils.h>
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -320,7 +321,7 @@ bool_t pause_call_1(LinphoneCoreManager* mgr_1,LinphoneCall* call_1,LinphoneCore
 bool_t compare_files(const char *path1, const char *path2);
 void check_media_direction(LinphoneCoreManager* mgr, LinphoneCall *call, MSList* lcs,LinphoneMediaDirection audio_dir, LinphoneMediaDirection video_dir);
 
-static const int audio_cmp_max_shift=10;
+extern const MSAudioDiffParams audio_cmp_params;
 
 /*
  * this function return max value in the last 3 seconds*/
diff --git a/tester/tester.c b/tester/tester.c
index eded255ed..c7a6db8bf 100644
--- a/tester/tester.c
+++ b/tester/tester.c
@@ -37,6 +37,8 @@ static int liblinphone_tester_keep_accounts_flag = 0;
 static int liblinphone_tester_keep_record_files = FALSE;
 int manager_count = 0;
 
+const MSAudioDiffParams audio_cmp_params = {10,2000};
+
 const char* test_domain="sipopen.example.org";
 const char* auth_domain="sip.example.org";
 const char* test_username="liblinphone_tester";