From ba45cfe089c6430ab80bc8652dc88a837a59fc9a Mon Sep 17 00:00:00 2001
From: XANTRONIX Development
Date: Tue, 8 Mar 2022 20:28:13 -0500
Subject: Fix duty cycle term in square wave synthesis

---
 src/synth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/synth.c b/src/synth.c
index 0be572d..9c974e5 100644
--- a/src/synth.c
+++ b/src/synth.c
@@ -30,7 +30,7 @@ static int16_t sample_square(xas_synth *synth) {
     float duty = synth->duty;
 
     if (synth->state == XAS_SYNTH_ACTIVE) {
-        ret = ((duty * synth->phase) - M_PI) > 0.0?
+        ret = (synth->phase - (duty * tau)) > 0.0?
             (int16_t)roundf(synth->gain * (INT16_MAX / 4)):
             (int16_t)roundf(synth->gain * (INT16_MIN / 4));
 
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