diff --git a/src/mixer.c b/src/mixer.c
index 01f3637..d24367b 100644
--- a/src/mixer.c
+++ b/src/mixer.c
@@ -27,10 +27,6 @@ static int16_t       data[SOUNDBLASTER_SAMPLES_PER_BUFFER] = {0};
 static bool          canmix                                = true;
 
 
-void mixer_init(void) {
-}
-
-
 int16_t const * mixer_getNextBlock(void) {
   canmix = true;
   return data;
diff --git a/src/mixer.h b/src/mixer.h
index da955b9..f442956 100644
--- a/src/mixer.h
+++ b/src/mixer.h
@@ -11,8 +11,6 @@
 #include <stdint.h>
 #include "source.h"
 
-void mixer_init(void);
-void mixer_deinit(void);
 int16_t const* mixer_getNextBlock(void);
 void mixer_play(source_t const *source);
 void mixer_mix(void);
diff --git a/src/source.c b/src/source.c
index 22eef58..9b56c9e 100644
--- a/src/source.c
+++ b/src/source.c
@@ -13,13 +13,6 @@
 #include "wavefile.h"
 
 
-int source_initSilence(source_t *self, int samples) {
-  self->sampleCount = samples;
-  self->samples = (int16_t*)dmt_malloc(samples * sizeof(int16_t));
-  return 0;
-}
-
-
 char const* source_init(source_t *self, char const* filename) {
   return wavefile_load(self, filename);
 }
diff --git a/src/source.h b/src/source.h
index 470887f..9282265 100644
--- a/src/source.h
+++ b/src/source.h
@@ -15,7 +15,6 @@ typedef struct  {
   int16_t *samples;
 } source_t;
 
-int source_initSilence(source_t *self, int samples);
 char const* source_init(source_t *self, char const* filename);
 void source_deinit(source_t *self);