Udate SGTL5000 examples

examples/Analysis/StereoPeakMeter/StereoPeakMeter.ino

   AudioMemory(6);
   audioShield.enable();
   audioShield.inputSelect(myInput);
-  audioShield.volume(0.75);
-  audioShield.unmuteLineout();
+  audioShield.volume(0.5);
   Serial.begin(9600);
 }
 

examples/Effects/CalcBiquadToneControl/CalcBiquadToneControl.ino

   // Enable the audio shield, select the input and set the output volume.
   audioShield.enable();
   audioShield.inputSelect(myInput);
-  audioShield.volume(0.75);
-  audioShield.unmuteLineout();
+  audioShield.volume(0.5);
 
   calcBiquad(FILTER_PARAEQ,110,0,0.2,2147483648,44100,updateFilter);
   filterTone_L.updateCoefs(updateFilter); // default set updateCoefs(0,updateFilter);

examples/Effects/Chorus/Chorus.ino

   l_myEffect.voices(0);
   r_myEffect.voices(0);
 
-  // I want output on the line out too
-  audioShield.unmuteLineout();
-//  audioShield.muteHeadphone();
-  
   Serial.println("setup done");
   AudioProcessorUsageMaxReset();
   AudioMemoryUsageMaxReset();

examples/Effects/Flange/Flange.ino

 
   audioShield.enable();
   audioShield.inputSelect(myInput);
-  audioShield.volume(0.65);
+  audioShield.volume(0.5);
   
   // Warn that the passthru pin is grounded
   if(!digitalRead(PASSTHRU_PIN)) {
   // PASSTHRU button is pushed.
   l_myEffect.voices(FLANGE_DELAY_PASSTHRU,0,0);
   r_myEffect.voices(FLANGE_DELAY_PASSTHRU,0,0);
-
-  // I want output on the line out too
-  audioShield.unmuteLineout();
   
   Serial.println("setup done");
   AudioProcessorUsageMaxReset();

examples/HardwareTesting/SGTL5000_Specific/CalcBiquadToneControlDAP/CalcBiquadToneControlDAP.ino

 */
 #include <Audio.h>
 #include <Wire.h>
+#include <SPI.h>
 #include <SD.h>
 
 const int myInput = AUDIO_INPUT_LINEIN;
   // Enable the audio shield, select the input and set the output volume.
   audioShield.enable();
   audioShield.inputSelect(myInput);
-  audioShield.volume(0.75);
-  audioShield.unmuteLineout();
-  // audioShield.audioProcessorEnable(); // enable the DAP block in SGTL5000
+  audioShield.volume(0.5);
+  audioShield.audioPostProcessorEnable(); // enable the DAP block in SGTL5000
   // audioShield.eqSelect(1); // using PEQ Biquad filters
   // audioShield.eqFilterCount(2); // enable filter 0 & filter 1
   calcBiquad(FILTER_PARAEQ,110,0,0.2,524288,44100,updateFilter); // automation negates the need

examples/HardwareTesting/SGTL5000_Specific/balanceDAC/balanceDAC.ino

 
 #include <Audio.h>
 #include <Wire.h>
+#include <SPI.h>
 #include <SD.h>
 
 
   // Enable the audio shield and set the output volume.
   audioShield.enable();
   audioShield.inputSelect(myInput);
-  audioShield.volume(0.75);
-  audioShield.unmuteLineout();
+  audioShield.volume(0.5);
 }
 
 elapsedMillis chgMsec=0;

examples/HardwareTesting/SGTL5000_Specific/balanceHP/balanceHP.ino

 
 #include <Audio.h>
 #include <Wire.h>
+#include <SPI.h>
 #include <SD.h>
 
 const int myInput = AUDIO_INPUT_LINEIN;
   // Enable the audio shield and set the output volume.
   audioShield.enable();
   audioShield.inputSelect(myInput);
-  audioShield.volume(0.75);
-  audioShield.unmuteLineout();
+  audioShield.volume(0.5);
 }
 
 elapsedMillis chgMsec=0;

examples/HardwareTesting/SGTL5000_Specific/dap_avc_agc/dap_avc_agc.ino

 
 #include <Audio.h>
 #include <Wire.h>
+#include <SPI.h>
 #include <SD.h>
 
 
   // Enable the audio shield and set the output volume.
   audioShield.enable();
   audioShield.inputSelect(myInput);
-  audioShield.volume(0.75);
-  audioShield.unmuteLineout();
+  audioShield.volume(0.5);
+  audioShield.audioPreProcessorEnable();
   // here are some settings for AVC that have a fairly obvious effect
   audioShield.autoVolumeControl(2,1,0,-5,0.5,0.5); // see comments starting line #699 of control_sgtl5000.cpp in ./libraries/audio/
   // AVC has its own enable/disable bit
 void loop() {
   // every 10 ms, check for adjustment
   if (chgMsec > 10) {
-    float vol1=analogRead(15)/10.23;
+    float vol1=analogRead(15)/1023.0;
     vol1=(int)vol1;
     if(lastVol!=vol1)
     {

examples/HardwareTesting/SGTL5000_Specific/dap_bass_enhance/dap_bass_enhance.ino

 
 #include <Audio.h>
 #include <Wire.h>
+#include <SPI.h>
 #include <SD.h>
 
 
   // Enable the audio shield and set the output volume.
   audioShield.enable();
   audioShield.inputSelect(myInput);
-  audioShield.volume(0.75);
-  audioShield.unmuteLineout();
+  audioShield.volume(0.5);
   // just enable it to use default settings.
+  audioShield.audioPostProcessorEnable();
   audioShield.enhanceBassEnable(); // all we need to do for default bass enhancement settings.
   // audioShield.enhanceBass((float)lr_level,(float)bass_level);
   // audioShield.enhanceBass((float)lr_level,(float)bass_level,(uint8_t)hpf_bypass,(uint8_t)cutoff);
 void loop() {
   // every 10 ms, check for adjustment
   if (chgMsec > 10) { // more regular updates for actual changes seems better.
-    float vol1=analogRead(15)/10.23;
+    float vol1=analogRead(15)/1023.0;
     vol1=(int)vol1;
     if(lastVol!=vol1)
     {

examples/HardwareTesting/ToneSweep/ToneSweep.ino

 
   audioShield.enable();
   audioShield.volume(0.5);
-    // I want output on the line out too
-  audioShield.unmuteLineout();
-//  audioShield.muteHeadphone();
 
   Serial.println("setup done");
 

examples/Synthesis/PlaySynthMusic/PlaySynthMusic.ino

   
   codec.enable();
   codec.volume(0.45);
-  // I want output on the line out too
-  // Comment this if you don't it
-  codec.unmuteLineout();
 
   // reduce the gain on some channels, so half of the channels
   // are "positioned" to the left, half to the right, but all