Alex6679/multi channel usb

examples/HardwareTesting/MultiChannelUSB/USBmultiIn/USBmultiIn.ino

@@ -0,0 +1,85 @@
+/*
+ * Example of 8-channel USB aoudio input from host
+ * Settings on Tools menu:
+ * - USB Type     : must include "Audio"
+ * - USB channels : set to 8
+ */
+#include <Audio.h>
+
+#define AUDIO_kHz ((int) AUDIO_SAMPLE_RATE / 1000)
+
+extern "C"
+{
+    struct usb_string_descriptor_struct
+    {
+        uint8_t bLength;
+        uint8_t bDescriptorType;
+        uint16_t wString[6+1+1+2+1];
+    };
+
+  usb_string_descriptor_struct usb_string_serial_number={
+    2+(6+1+1+2+1)*2,3,
+    {'A','u','d','i','o','-','0'+AUDIO_USB_CHANNEL_COUNT,'/','0'+(AUDIO_kHz / 10),'0' + (AUDIO_kHz % 10),'B'}
+  };
+}
+
+
+// GUItool: begin automatically generated code
+AudioInputUSBOct         usb_oct_in;       //xy=192,222
+AudioMixer4              mixerL1;         //xy=444,121
+AudioMixer4              mixerL2; //xy=452,185
+AudioMixer4              mixerR1;  //xy=465,257
+AudioMixer4              mixerR2; //xy=473,323
+AudioMixer4              mixerL;         //xy=624,165
+AudioMixer4              mixerR; //xy=636,303
+AudioOutputI2S           i2s_out;           //xy=817,231
+
+AudioConnection          patchCord1{usb_oct_in, 0, mixerL1, 0};
+AudioConnection          patchCord2{usb_oct_in, 0, mixerR1, 0};
+AudioConnection          patchCord3{usb_oct_in, 1, mixerL1, 1};
+AudioConnection          patchCord4{usb_oct_in, 1, mixerR1, 1};
+AudioConnection          patchCord5{usb_oct_in, 2, mixerL1, 2};
+AudioConnection          patchCord6{usb_oct_in, 2, mixerR1, 2};
+AudioConnection          patchCord7{usb_oct_in, 3, mixerL1, 3};
+AudioConnection          patchCord8{usb_oct_in, 3, mixerR1, 3};
+AudioConnection          patchCord9{usb_oct_in, 4, mixerL2, 0};
+AudioConnection          patchCord10{usb_oct_in, 4, mixerR2, 0};
+AudioConnection          patchCord11{usb_oct_in, 5, mixerL2, 1};
+AudioConnection          patchCord12{usb_oct_in, 5, mixerR2, 1};
+AudioConnection          patchCord13{usb_oct_in, 6, mixerL2, 2};
+AudioConnection          patchCord14{usb_oct_in, 6, mixerR2, 2};
+AudioConnection          patchCord15{usb_oct_in, 7, mixerL2, 3};
+AudioConnection          patchCord16{usb_oct_in, 7, mixerR2, 3};
+AudioConnection          patchCord17{mixerL1, 0, mixerL, 0};
+AudioConnection          patchCord18{mixerL2, 0, mixerL, 1};
+AudioConnection          patchCord19{mixerR1, 0, mixerR, 0};
+AudioConnection          patchCord20{mixerR2, 0, mixerR, 1};
+AudioConnection          patchCord21{mixerL, 0, i2s_out, 0};
+AudioConnection          patchCord22{mixerR, 0, i2s_out, 1};
+
+AudioControlSGTL5000     sgtl5000;     //xy=853,290
+// GUItool: end automatically generated code
+
+
+void setup() 
+{
+  AudioMemory(80);
+
+  for (int i=0;i<4;i++)
+  {
+    mixerL1.gain(i,0.1f + i*0.1f);    
+    mixerL2.gain(i,0.5f + i*0.1f);    
+    mixerR1.gain(i,0.8f - i*0.1f);    
+    mixerR2.gain(i,0.4f - i*0.1f);
+
+    mixerL.gain(i,0.5f);    
+    mixerR.gain(i,0.5f);    
+  }
+
+  sgtl5000.enable();
+  sgtl5000.volume(0.1f);
+}
+
+void loop() 
+{
+}

examples/HardwareTesting/MultiChannelUSB/USBmultiOut/USBmultiOut.ino

@@ -0,0 +1,71 @@
+/*
+ * Example of 8-channel USB aoudio output to host
+ * Settings on Tools menu:
+ * - USB Type     : must include "Audio"
+ * - USB channels : set to 8
+ */
+#include <Audio.h>
+
+#define AUDIO_kHz ((int) AUDIO_SAMPLE_RATE / 1000)
+
+extern "C"
+{
+    struct usb_string_descriptor_struct
+    {
+        uint8_t bLength;
+        uint8_t bDescriptorType;
+        uint16_t wString[6+1+1+2+1];
+    };
+
+  usb_string_descriptor_struct usb_string_serial_number={
+    2+(6+1+1+2+1)*2,3,
+    {'A','u','d','i','o','-','0'+AUDIO_USB_CHANNEL_COUNT,'/','0'+(AUDIO_kHz / 10),'0' + (AUDIO_kHz % 10),'B'}
+  };
+}
+
+
+// GUItool: begin automatically generated code
+AudioSynthWaveform       wav1;           //xy=156,129
+AudioSynthWaveform       wav2;           //xy=161,165
+AudioSynthWaveform       wav3;           //xy=163,203
+AudioSynthWaveform       wav4;           //xy=167,240
+AudioSynthWaveform       wav5;           //xy=171,278
+AudioSynthWaveform       wav6;           //xy=176,314
+AudioSynthWaveform       wav7;           //xy=180,351
+AudioSynthWaveform       wav8;           //xy=184,389
+AudioOutputUSBOct        usb_oct_out;    //xy=514,237
+
+AudioConnection          patchCord1{wav1, 0, usb_oct_out, 0};
+AudioConnection          patchCord2{wav2, 0, usb_oct_out, 1};
+AudioConnection          patchCord3{wav3, 0, usb_oct_out, 2};
+AudioConnection          patchCord4{wav4, 0, usb_oct_out, 3};
+AudioConnection          patchCord5{wav5, 0, usb_oct_out, 4};
+AudioConnection          patchCord6{wav6, 0, usb_oct_out, 5};
+AudioConnection          patchCord7{wav7, 0, usb_oct_out, 6};
+AudioConnection          patchCord8{wav8, 0, usb_oct_out, 7};
+
+// GUItool: end automatically generated code
+
+
+AudioSynthWaveform* wavs[] = {
+  &wav1,
+  &wav2,
+  &wav3,
+  &wav4,
+  &wav5,
+  &wav6,
+  &wav7,
+  &wav8
+};
+
+void setup() 
+{
+  AudioMemory(80);
+
+  for (int i=0;i<8;i++)
+    wavs[i]->begin(0.5f,(i+1)*110.0f,WAVEFORM_SINE);
+}
+
+void loop() 
+{
+}