Added REDUCE_LOUDNESS_FACTOR for avoiding digital clipping.

.gitignore

@@ -30,3 +30,6 @@
 *.exe
 *.out
 *.app
+
+#
+*.swp

config.h

@@ -96,7 +96,8 @@
 #else
 #define AUDIO_MEM 384
 #endif
-#define REDUCE_LOUDNESS 2
+#define REDUCE_LOUDNESS 0
+#define REDUCE_LOUDNESS_FACTOR 0.65
 #else // IF TEENSY_AUDIO_BOARD
 #define SGTL5000_LINEOUT_LEVEL 29
 #if AUDIO_BLOCK_SAMPLES == 64

dexed.cpp

@@ -156,6 +156,9 @@ void Dexed::getSamples(uint16_t n_samples, int16_t* buffer)
 #endif
 
           float f = static_cast<float>(clip_val >> REDUCE_LOUDNESS) / 0x7fff;
+#if defined(REDUCE_LOUDNESS_FACTOR)
+          f *= REDUCE_LOUDNESS_FACTOR;
+#endif
           if (f > 1.0)
           {
             f = 1.0;