zynaddsubfx

commit fbf6ec00a674a16f7470b2d80967824610a91b54
parent 4237d18d735eb0176d71ae50cc3bf697290ad861
Author: Hans Petter Selasky <hps@selasky.org>
Date:   Sun,  5 Apr 2020 02:37:26 +0200

Make sure the first call to SynthNote::setFilterCutoff() makes the relfreq
value start at the current controller value. Else there will be a sudden
jump in the parameter causing audio discontinuity.

Signed-off-by: Hans Petter Selasky <hps@selasky.org>

Diffstat:
M
src/Synth/SynthNote.cpp
 | 
4
++++

1 file changed, 4 insertions(+), 0 deletions(-)
diff --git a/src/Synth/SynthNote.cpp b/src/Synth/SynthNote.cpp
@@ -176,6 +176,10 @@ void SynthNote::setPitch(float log2_freq_) {
 
 void SynthNote::setFilterCutoff(float value)
 {
+    /* set current value, if first time */
+    if (filtercutoff_relfreq.isSet() == false)
+        filtercutoff_relfreq = ctl.filtercutoff.relfreq;
+    /* update value */
     filtercutoff_relfreq =
         (value - 64.0f) * ctl.filtercutoff.depth / 4096.0f * 3.321928f;
 }