volume and pan effects are now logarithmic closer to human hearing (#77)

2018-06-21 11:04:15 -07:00
parent f344e262e8
commit 72d15b9ed9
2 changed files with 6 additions and 3 deletions
@@ -2,6 +2,7 @@

 #include <QGridLayout>
 #include <QLabel>
+#include <QtMath>
 #include <cmath>

 #include "ui/labelslider.h"
@@ -52,7 +53,7 @@ void PanEffect::process_audio(quint8 *samples, int nb_bytes) {
            qint16 left_sample = (qint16) ((samples[i+1] << 8) | samples[i]);
            qint16 right_sample = (qint16) ((samples[i+3] << 8) | samples[i+2]);

-            float val = pan_val->value()*0.01f;
+            float val = qPow(pan_val->value()*0.01f, 3);
            if (val < 0) {
                // affect right channel
                right_sample *= (1-std::abs(val));