diff --git a/src/libespeak-ng/event.c b/src/libespeak-ng/event.c
index 488b47b7..9cbbc40c 100644
--- a/src/libespeak-ng/event.c
+++ b/src/libespeak-ng/event.c
@@ -478,3 +478,30 @@ void event_terminate()
 		thread_inited = 0;
 	}
 }
+
+enum { ONE_BILLION = 1000000000 };
+
+void clock_gettime2(struct timespec *ts)
+{
+	struct timeval tv;
+
+	if (!ts)
+		return;
+
+	assert(gettimeofday(&tv, NULL) != -1);
+	ts->tv_sec = tv.tv_sec;
+	ts->tv_nsec = tv.tv_usec*1000;
+}
+
+void add_time_in_ms(struct timespec *ts, int time_in_ms)
+{
+	if (!ts)
+		return;
+
+	uint64_t t_ns = (uint64_t)ts->tv_nsec + 1000000 * (uint64_t)time_in_ms;
+	while (t_ns >= ONE_BILLION) {
+		ts->tv_sec += 1;
+		t_ns -= ONE_BILLION;
+	}
+	ts->tv_nsec = (long int)t_ns;
+}
diff --git a/src/libespeak-ng/wave.c b/src/libespeak-ng/wave.c
index 9d19895c..dc76cb14 100644
--- a/src/libespeak-ng/wave.c
+++ b/src/libespeak-ng/wave.c
@@ -46,8 +46,6 @@ struct timespec {
 };
 #endif
 
-enum { ONE_BILLION = 1000000000 };
-
 #ifdef USE_PORTAUDIO
 #include "portaudio.h"
 
@@ -905,28 +903,3 @@ int wave_get_remaining_time(uint32_t sample, uint32_t *time)
 }
 
 #endif
-
-void clock_gettime2(struct timespec *ts)
-{
-	struct timeval tv;
-
-	if (!ts)
-		return;
-
-	assert(gettimeofday(&tv, NULL) != -1);
-	ts->tv_sec = tv.tv_sec;
-	ts->tv_nsec = tv.tv_usec*1000;
-}
-
-void add_time_in_ms(struct timespec *ts, int time_in_ms)
-{
-	if (!ts)
-		return;
-
-	uint64_t t_ns = (uint64_t)ts->tv_nsec + 1000000 * (uint64_t)time_in_ms;
-	while (t_ns >= ONE_BILLION) {
-		ts->tv_sec += 1;
-		t_ns -= ONE_BILLION;
-	}
-	ts->tv_nsec = (long int)t_ns;
-}
diff --git a/src/libespeak-ng/wave_pulse.c b/src/libespeak-ng/wave_pulse.c
index cb3a1e19..96d1a92f 100644
--- a/src/libespeak-ng/wave_pulse.c
+++ b/src/libespeak-ng/wave_pulse.c
@@ -44,8 +44,6 @@
 #endif
 #include "wave.h"
 
-enum { ONE_BILLION = 1000000000 };
-
 enum {
 	/* return value */
 	PULSE_OK = 0,
@@ -669,32 +667,3 @@ void *wave_test_get_write_buffer()
 }
 
 #endif
-
-#ifndef USE_PORTAUDIO
-
-void clock_gettime2(struct timespec *ts)
-{
-	struct timeval tv;
-
-	if (!ts)
-		return;
-
-	assert(gettimeofday(&tv, NULL) != -1);
-	ts->tv_sec = tv.tv_sec;
-	ts->tv_nsec = tv.tv_usec*1000;
-}
-
-void add_time_in_ms(struct timespec *ts, int time_in_ms)
-{
-	if (!ts)
-		return;
-
-	uint64_t t_ns = (uint64_t)ts->tv_nsec + 1000000 * (uint64_t)time_in_ms;
-	while (t_ns >= ONE_BILLION) {
-		ts->tv_sec += 1;
-		t_ns -= ONE_BILLION;
-	}
-	ts->tv_nsec = (long int)t_ns;
-}
-
-#endif
diff --git a/src/libespeak-ng/wave_sada.c b/src/libespeak-ng/wave_sada.c
index 452fb6e9..5d416407 100644
--- a/src/libespeak-ng/wave_sada.c
+++ b/src/libespeak-ng/wave_sada.c
@@ -32,7 +32,6 @@
 
 #include "wave.h"
 
-enum { ONE_BILLION = 1000000000 };
 #define SAMPLE_RATE 22050
 #define SAMPLE_SIZE 16
 
@@ -422,28 +421,3 @@ int wave_get_remaining_time(uint32_t sample, uint32_t *time)
 }
 
 #endif
-
-void clock_gettime2(struct timespec *ts)
-{
-	struct timeval tv;
-
-	if (!ts)
-		return;
-
-	assert(gettimeofday(&tv, NULL) != -1);
-	ts->tv_sec = tv.tv_sec;
-	ts->tv_nsec = tv.tv_usec*1000;
-}
-
-void add_time_in_ms(struct timespec *ts, int time_in_ms)
-{
-	if (!ts)
-		return;
-
-	uint64_t t_ns = (uint64_t)ts->tv_nsec + 1000000 * (uint64_t)time_in_ms;
-	while (t_ns >= ONE_BILLION) {
-		ts->tv_sec += 1;
-		t_ns -= ONE_BILLION;
-	}
-	ts->tv_nsec = (long int)t_ns;
-}