diff --git a/qsynth-0.3.8-default_pulseaudio.patch b/qsynth-0.3.8-default_pulseaudio.patch
deleted file mode 100644
index b399ffc..0000000
--- a/qsynth-0.3.8-default_pulseaudio.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -Nru qsynth-0.3.6.orig/src/qsynthOptions.cpp qsynth-0.3.6/src/qsynthOptions.cpp
---- qsynth-0.3.6.orig/src/qsynthOptions.cpp	2012-06-12 18:48:46.340291361 +0200
-+++ qsynth-0.3.6/src/qsynthOptions.cpp	2012-06-12 18:51:07.838932135 +0200
-@@ -485,7 +485,7 @@
- 	pSetup->iAudioBufCount   = m_settings.value("/AudioBufCount", 8).toInt();
- #else
- 	pSetup->sMidiDriver      = m_settings.value("/MidiDriver", "alsa_seq").toString();
--	pSetup->sAudioDriver     = m_settings.value("/AudioDriver", "jack").toString();
-+	pSetup->sAudioDriver     = m_settings.value("/AudioDriver", "alsa").toString();
- 	pSetup->iAudioBufSize    = m_settings.value("/AudioBufSize", 64).toInt();
- 	pSetup->iAudioBufCount   = m_settings.value("/AudioBufCount", 2).toInt();
- #endif
diff --git a/qsynth-0.5.7-default_pulseaudio.patch b/qsynth-0.5.7-default_pulseaudio.patch
new file mode 100644
index 0000000..2e0e6fb
--- /dev/null
+++ b/qsynth-0.5.7-default_pulseaudio.patch
@@ -0,0 +1,11 @@
+--- qsynth-0.5.7/src/qsynthOptions.cpp.orig	2019-08-18 13:37:43.405000000 +0200
++++ qsynth-0.5.7/src/qsynthOptions.cpp	2019-08-18 13:38:05.245000000 +0200
+@@ -496,7 +496,7 @@
+ 	pSetup->sAudioDriver     = m_settings.value("/AudioDriver", "dsound").toString();
+ #else
+ 	pSetup->sMidiDriver      = m_settings.value("/MidiDriver", "alsa_seq").toString();
+-	pSetup->sAudioDriver     = m_settings.value("/AudioDriver", "jack").toString();
++	pSetup->sAudioDriver     = m_settings.value("/AudioDriver", "alsa").toString();
+ #endif
+ #if defined(__WIN32__) || defined(_WIN32) || defined(WIN32)
+ 	pSetup->iAudioBufSize    = m_settings.value("/AudioBufSize", 512).toInt();
diff --git a/qsynth.spec b/qsynth.spec
index 36dd7e9..399fda6 100644
--- a/qsynth.spec
+++ b/qsynth.spec
@@ -1,5 +1,5 @@
 Name:          qsynth
-Version:       0.5.6
+Version:       0.5.7
 Release:       1mamba
 Summary:       A fluidsynth GUI front-end application written in C++ around the Qt3 toolkit
 Group:         Graphical Desktop/Applications/Multimedia
@@ -11,7 +11,7 @@ Source:        http://downloads.sourceforge.net/sourceforge/qsynth/%{name}-%{ver
 Patch0:        %{name}-0.2.4-wrongincludes.patch
 Patch1:        %{name}-0.3.1-soundfonts.patch
 Patch2:        %{name}-0.3.6-default_alsa.patch
-Patch3:        qsynth-0.3.8-default_pulseaudio.patch
+Patch3:        qsynth-0.5.7-default_pulseaudio.patch
 Patch4:        qsynth-0.4.1-gcc-6.1.0.patch
 License:       GPL
 BuildRoot:     %{_tmppath}/%{name}-%{version}-buildroot
@@ -95,6 +95,9 @@ fi
 #ChangeLog README README-OSX TODO
 
 %changelog
+* Sun Aug 18 2019 Automatic Build System <autodist@mambasoft.it> 0.5.7-1mamba
+- automatic version update by autodist
+
 * Thu Apr 11 2019 Automatic Build System <autodist@mambasoft.it> 0.5.6-1mamba
 - automatic version update by autodist