1 files changed, 6 insertions, 1 deletions
diff --git a/examples/test.c b/examples/test.c
index d03b8b2..36ba034 100644
--- a/examples/test.c
+++ b/examples/test.c
@@ -40,11 +40,16 @@ static void usage(int argc, char **argv, const char *message, ...) {
 
 static int16_t sine_sample(xas_synth *synth, synth_sine *sine) {
     int16_t ret;
+    static float tau = 2.0f * M_PI;
 
     if (sine->flags & SYNTH_STATUS_ON) {
         ret = (int16_t)roundf((INT16_MAX >> 2) * sinf(sine->phase));
 
-        sine->phase += (2.0f * M_PI) / (synth->sample_rate / sine->frequency);
+        sine->phase += tau / (synth->sample_rate / sine->frequency);
+
+        if (sine->phase > tau) {
+            sine->phase -= tau;
+        }
     } else {
         ret = 0;
     }