3 files changed, 14 insertions, 12 deletions
diff --git a/drumgizmo/output/alsa/alsa.cc b/drumgizmo/output/alsa/alsa.cc
index dc2ac73..71e0c3d 100644
--- a/drumgizmo/output/alsa/alsa.cc
+++ b/drumgizmo/output/alsa/alsa.cc
@@ -52,15 +52,15 @@ public:
   size_t samplerate();
 
 private:
-  snd_pcm_t *handle;
-  snd_pcm_hw_params_t *params;
-  sample_t *data;
-  size_t channels;
+	snd_pcm_t *handle{nullptr};
+	snd_pcm_hw_params_t *params{nullptr};
+	sample_t *data{nullptr};
+	size_t channels{0};
 
   // Parameters
   std::string device;
-  unsigned int srate;
-  snd_pcm_uframes_t frames;
+	unsigned int srate{0};
+	snd_pcm_uframes_t frames{0};
 };
 
 Alsa::Alsa()
diff --git a/drumgizmo/output/jackaudio/jackaudio.cc b/drumgizmo/output/jackaudio/jackaudio.cc
index 5c04146..511c145 100644
--- a/drumgizmo/output/jackaudio/jackaudio.cc
+++ b/drumgizmo/output/jackaudio/jackaudio.cc
@@ -57,10 +57,10 @@ public:
   size_t samplerate();
 
 private:
-  JackClient *jackclient;
-  jack_port_t *output_port[64];
-  size_t nchannels;
-  sample_t **channels;
+	JackClient *jackclient{nullptr};
+	jack_port_t *output_port[64] = {};
+	size_t nchannels{0};
+	sample_t **channels{nullptr};
   Semaphore sem;
 };
 
diff --git a/drumgizmo/output/wavfile/wavfile.cc b/drumgizmo/output/wavfile/wavfile.cc
index fa4128e..8401f80 100644
--- a/drumgizmo/output/wavfile/wavfile.cc
+++ b/drumgizmo/output/wavfile/wavfile.cc
@@ -28,6 +28,7 @@
 
 #include <audiotypes.h>
 #include <string>
+#include <memory.h>
 
 #include <sndfile.h>
 
@@ -48,8 +49,8 @@ public:
 
 private:
   SF_INFO sf_info;
-  SNDFILE **fh;
-  size_t channels;
+	SNDFILE **fh{nullptr};
+	size_t channels{0};
 
   // Parameters
   std::string filename;
@@ -60,6 +61,7 @@ WavFile::WavFile()
   fh = NULL;
   filename = "output";
 
+  memset(&sf_info, 0, sizeof(sf_info));
   sf_info.channels = 1;//channels;
   sf_info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT;
   sf_info.samplerate = 44100;