First working version of drum sampleplayer.

MicroDexed.ino

@@ -41,6 +41,9 @@
 #include "effect_freeverbf.h"
 #endif
 #include "UI.hpp"
+#if NUM_DRUMS > 0
+#include "drums.h"
+#endif
 
 // Audio engines
 AudioSynthDexed*                MicroDexed[NUM_DEXED];
@@ -84,6 +87,7 @@ AudioMixer4                     audio_thru_mixer_l;
 // Drumset
 #if NUM_DRUMS > 0
 AudioPlaySdRaw*                 Drum[NUM_DRUMS];
+AudioAmplifier*                 drum_volume[NUM_DRUMS];
 AudioEffectMonoStereo*          drum_mono2stereo[NUM_DRUMS];
 AudioMixer4                     drum_mixer_r;
 AudioMixer4                     drum_mixer_l;
@@ -175,11 +179,11 @@ AudioConnection          patchCord22(drum_mixer_l, 0, master_mixer_l, 2);
 //
 uint8_t nDynamic = 0;
 #if defined(USE_FX) && MOD_FILTER_OUTPUT != MOD_NO_FILTER_OUTPUT
-AudioConnection* dynamicConnections[NUM_DEXED * 16 + NUM_DRUMS * 3 ];
+AudioConnection* dynamicConnections[NUM_DEXED * 16 + NUM_DRUMS * 4 ];
 #elif defined(USE_FX) && MOD_FILTER_OUTPUT == MOD_NO_FILTER_OUTPUT
-AudioConnection* dynamicConnections[NUM_DEXED * 15 + NUM_DRUMS * 3];
+AudioConnection* dynamicConnections[NUM_DEXED * 15 + NUM_DRUMS * 4];
 #else
-AudioConnection* dynamicConnections[NUM_DEXED * 4 + NUM_DRUMS * 3];
+AudioConnection* dynamicConnections[NUM_DEXED * 4 + NUM_DRUMS * 4];
 #endif
 void create_audio_dexed_chain(uint8_t instance_id)
 {
@@ -237,9 +241,11 @@ void create_audio_dexed_chain(uint8_t instance_id)
 void create_audio_drum_chain(uint8_t instance_id)
 {
   Drum[instance_id] = new AudioPlaySdRaw();
+  drum_volume[instance_id] = new AudioAmplifier();
   drum_mono2stereo[instance_id] = new AudioEffectMonoStereo();
 
-  dynamicConnections[nDynamic++] = new AudioConnection(*Drum[instance_id], 0, *drum_mono2stereo[instance_id], 0);
+  dynamicConnections[nDynamic++] = new AudioConnection(*Drum[instance_id], 0, *drum_volume[instance_id], 0);
+  dynamicConnections[nDynamic++] = new AudioConnection(*drum_volume[instance_id], 0, *drum_mono2stereo[instance_id], 0);
   dynamicConnections[nDynamic++] = new AudioConnection(*drum_mono2stereo[instance_id], 0, drum_mixer_r, instance_id);
   dynamicConnections[nDynamic++] = new AudioConnection(*drum_mono2stereo[instance_id], 1, drum_mixer_l, instance_id);
 
@@ -303,10 +309,11 @@ int perform_release_mod[NUM_DEXED] = { 0 };
 // Allocate the delay lines for chorus
 int16_t delayline[NUM_DEXED][MOD_DELAY_SAMPLE_BUFFER];
 #endif
-#if NUM_DRUMS >1
+
-static uint8_t drum_counter;
+#if NUM_DRUMS > 1
-static uint8_t drum_type[NUM_DRUMS];
+extern uint8_t drum_counter;
-enum {DRUM_NONE, DRUM_BASS, DRUM_SNAREDRUM, DRUM_HIHAT, DRUM_HANDCLAP, DRUM_RIDE, DRUM_CHRASH, DRUM_LOWTOM, DRUM_MIDTOM, DRUM_HIGHTOM};
+extern uint8_t drum_type[NUM_DRUMS];
+extern drum_config_t drum_config[NUM_DRUMCONFIG];
 #endif
 
 #ifdef ENABLE_LCD_UI
@@ -709,6 +716,7 @@ void handleNoteOn(byte inChannel, byte inNumber, byte inVelocity)
         Serial.print(inChannel, DEC);
         Serial.println();
 #endif
+        return;
       }
     }
   }
@@ -729,38 +737,16 @@ void handleNoteOn(byte inChannel, byte inNumber, byte inVelocity)
     Serial.println(note_name);
 #endif
 
-    switch (inNumber - 48)
+    for (uint8_t d = 0; d < NUM_DRUMCONFIG; d++)
     {
-      case 0:
+      if (inNumber == drum_config[d].midinote)
-        Drum[drum_get_slot(DRUM_BASS)]->play("/DRM/BD01.RAW");
+      {
-        break;
+        uint8_t slot = drum_get_slot(drum_config[d].type);
-      case 1:
+        drum_volume[slot]->gain(drum_config[d].vol);
-        Drum[drum_get_slot(DRUM_HANDCLAP)]->play("/drm/cp02.raw");
+        drum_mono2stereo[slot]->panorama(drum_config[d].pan);
-        break;
+        Drum[slot]->play(drum_config[d].filename);
-      case 2:
-        Drum[drum_get_slot(DRUM_SNAREDRUM)]->play("/drm/sd15.raw");
-        break;
-      case 6:
-        Drum[drum_get_slot(DRUM_HIHAT)]->play("/drm/hh01.wav");
-        break;
-      case 8:
-        Drum[drum_get_slot(DRUM_HIHAT)]->play("/drm/hh02.wav");
-        break;
-      case 10:
-        Drum[drum_get_slot(DRUM_HIHAT)]->play("/drm/oh02.wav");
-        break;
-      case 5:
-        Drum[drum_get_slot(DRUM_LOWTOM)]->play("/drm/lt01.raw");
-        break;
-      case 7:
-        Drum[drum_get_slot(DRUM_HIGHTOM)]->play("/drm/ht01.raw");
-        break;
-      case 13:
-        Drum[drum_get_slot(DRUM_RIDE)]->play("/drm/rd01.raw");
-        break;
-      case 15:
-        Drum[drum_get_slot(DRUM_RIDE)]->play("/drm/rd02.raw");
         break;
+      }
     }
   }
 #endif

drums.h

@@ -0,0 +1,112 @@
+/*
+   Copyright (c) 2019-2021 H. Wirtz
+
+   Permission is hereby granted, free of charge, to any person obtaining a copy
+   of this software and associated documentation files (the "Software"), to deal
+   in the Software without restriction, including without limitation the rights
+   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+   copies of the Software, and to permit persons to whom the Software is
+   furnished to do so, subject to the following conditions:
+
+   The above copyright notice and this permission notice shall be included in
+   all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+   THE SOFTWARE.
+*/
+
+#pragma once
+
+#if NUM_DRUMS >1
+uint8_t drum_counter;
+uint8_t drum_type[NUM_DRUMS];
+
+enum {DRUM_NONE, DRUM_BASS, DRUM_SNARE, DRUM_HIHAT, DRUM_HANDCLAP, DRUM_RIDE, DRUM_CHRASH, DRUM_LOWTOM, DRUM_MIDTOM, DRUM_HIGHTOM};
+
+typedef struct drum_config_s {
+  uint8_t type;       // Type of drum
+  uint8_t midinote;   // Triggered by note
+  char filename[18];  // 44.1kHz mono LSB raw-sample to play
+  float32_t pan;      // Panorama (-1.0 - +1.0)
+  float32_t vol;      // Volume (0.0 - 1.0)
+} drum_config_t;
+
+#define NUM_DRUMCONFIG 10
+drum_config_t drum_config[NUM_DRUMCONFIG] = {
+  {
+    DRUM_BASS,
+    MIDI_C3,
+    "/drm/bd01.raw",
+    0.0,
+    0.8
+  },
+  {
+    DRUM_HANDCLAP,
+    MIDI_CIS3,
+    "/drm/cp02.raw",
+    -0.4,
+    0.6
+  },
+  {
+    DRUM_SNARE,
+    MIDI_D3,
+    "/drm/sd15.raw",
+    0.2,
+    0.8
+  },
+  {
+    DRUM_HIHAT,
+    MIDI_FIS3,
+    "/drm/hh01.raw",
+    0.8,
+    0.8
+  },
+  {
+    DRUM_HIHAT,
+    MIDI_GIS3,
+    "/drm/hh02.raw",
+    0.8,
+    0.8
+  },
+  {
+    DRUM_HIHAT,
+    MIDI_AIS3,
+    "/drm/oh02.raw",
+    0.8,
+    0.8
+  },
+  {
+    DRUM_LOWTOM,
+    MIDI_G3,
+    "/drm/lt01.raw",
+    -0.7,
+    0.8
+  },
+  {
+    DRUM_HIGHTOM,
+    MIDI_A3,
+    "/drm/ht01.raw",
+    -0.5,
+    0.8
+  },
+  {
+    DRUM_RIDE,
+    MIDI_CIS4,
+    "/drm/rd01.raw",
+    -0.6,
+    0.8
+  },
+  {
+    DRUM_RIDE,
+    MIDI_DIS4,
+    "/drm/rd02.raw",
+    -0.6,
+    0.8
+  }
+};
+#endif