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MicroMDAEPiano
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Added USE_F32 for switching to float precission (not working yet).

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master
Holger Wirtz 6 years ago
parent e7f87f5209
commit 94c5d375df
4 changed files with 121 additions and 63 deletions
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  1. 59
      MicroMDAEPiano.ino
  2. 8
      config.h
  3. 9
      mdaEPiano.cpp
  4. 4
      mdaEPiano.h

59
MicroMDAEPiano.ino
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@ -22,7 +22,11 @@
*/
#include "config.h"
#ifdef USE_F32
#include <OpenAudio_ArduinoLibrary.h> //for AudioConvert_I16toF32, AudioConvert_F32toI16, and AudioEffectGain_F32
#else
#include <Audio.h>
#endif
#include <Wire.h>
#include <SPI.h>
#include <MIDI.h>
@ -43,7 +47,6 @@
#include <Bounce.h>
#include <Encoder.h>
#include "LiquidCrystalPlus_I2C.h"
#include <OpenAudio_ArduinoLibrary.h> //for AudioConvert_I16toF32, AudioConvert_F32toI16, and AudioEffectGain_F32
// [I2C] SCL: Pin 19, SDA: Pin 18 (https://www.pjrc.com/teensy/td_libs_Wire.html)
#define LCD_I2C_ADDRESS 0x27
@ -54,31 +57,55 @@ Encoder enc1(ENC1_PIN_A, ENC1_PIN_B);
Bounce but1 = Bounce(BUT1_PIN, 10); // 10 ms debounce
// GUItool: begin automatically generated code
#ifdef USE_F32
AudioPlayQueue_F32 queue_r; //xy=494,404
AudioPlayQueue_F32 queue_l; //xy=494,404
AudioEffectCompressor_F32 comp_r;
AudioEffectCompressor_F32 comp_l;
AudioConvert_F32toI16 float2Int_r;
AudioConvert_F32toI16 float2Int_l;
#else
AudioPlayQueue queue_r; //xy=494,404
AudioPlayQueue queue_l; //xy=494,404
#endif
AudioAnalyzePeak peak_r; //xy=695,491
AudioAnalyzePeak peak_l; //xy=695,491
#ifdef USE_F32
#ifdef USE_COMP_F32
AudioEffectCompressor_F32 comp_r;
AudioEffectCompressor_F32 comp_l;
AudioConnection_F32 patchCord0(queue_r, comp_r);
AudioConnection_F32 patchCord1(queue_l, comp_l);
AudioConnection_F32 patchCord2(comp_r, float2Int_r);
AudioConnection_F32 patchCord3(comp_l, float2Int_l);
#else
AudioConnection_F32 patchCord0(queue_r, float2Int_r);
AudioConnection_F32 patchCord1(queue_l, float2Int_l);
#endif
#endif
#ifdef TEENSY_AUDIO_BOARD
AudioOutputI2S i2s1; //xy=1072,364
#ifdef USE_F32
AudioConnection patchCord4(float2Int_r, peak_r);
AudioConnection patchCord5(float2Int_l, peak_l);
AudioConnection patchCord6(float2Int_r, 0, i2s1, 0);
AudioConnection patchCord7(float2Int_l, 0, i2s1, 1);
#else
AudioConnection patchCord4(queue_r, peak_r);
AudioConnection patchCord5(queue_l, peak_l);
AudioConnection patchCord6(queue_r, 0, i2s1, 0);
AudioConnection patchCord7(queue_l, 0, i2s1, 1);
#endif
AudioControlSGTL5000 sgtl5000_1; //xy=700,536
#else
AudioOutputPT8211 pt8211_1; //xy=1079,320
AudioAmplifier volume_r; //xy=818,370
AudioAmplifier volume_l; //xy=818,411
#ifdef USE_F32
AudioConnection patchCord4(float2Int_r, volume_r);
AudioConnection patchCord5(float2Int_l, volume_l);
#else
AudioConnection patchCord4(queue_r, volume_r);
AudioConnection patchCord5(queue_l, volume_l);
#endif
AudioConnection patchCord6(volume_r, peak_r);
AudioConnection patchCord7(volume_l, peak_l);
AudioConnection patchCord8(volume_r, 0, pt8211_1, 1);
@ -91,6 +118,7 @@ uint8_t midi_channel = DEFAULT_MIDI_CHANNEL;
uint32_t xrun = 0;
uint32_t overload = 0;
uint32_t peak = 0;
uint32_t audio_buffer_problem = 0;
uint16_t render_time_max = 0;
float vol = VOLUME;
float vol_right = 1.0;
@ -173,7 +201,9 @@ void setup()
// start audio card
AudioMemory(AUDIO_MEM);
#ifdef USE_F32
AudioMemory_F32(AUDIO_MEM_F32);
#endif
#ifdef TEENSY_AUDIO_BOARD
sgtl5000_1.enable();
@ -185,7 +215,8 @@ void setup()
sgtl5000_1.volume(1.0, 1.0);
#endif
set_volume(vol, vol_left, vol_right);
//set_volume(vol, vol_left, vol_right);
set_volume(1.0, 1.0, 1.0);
#if defined (DEBUG) && defined (SHOW_CPU_LOAD_MSEC)
// Initialize processor and memory measurements
@ -215,10 +246,14 @@ void setup()
// DECAY,RELEASE,HARDNESS,TREBLE,PAN_TREM,LFO_RATE,VELOCITY_SENSE,STEREO,MAX_POLY,TUNE,DETUNE,OVERDRIVE
#if defined(USE_F32) && defined(USE_COMP_F32)
// setup compressor as limiter
setup_compressor(true, -15.0f, 5.0f, 0.005f, 0.200f);
// setup compressor like an automatic volume control
//setup_compressor(true,-50.0,5.0,1.0,2.0);
comp_r.setPreGain_dB(0.0);
comp_l.setPreGain_dB(0.0);
#endif
Serial.println(F("<setup end>"));
@ -230,8 +265,13 @@ void setup()
void loop()
{
#if defined(USE_F32)
float* audio_buffer_r; // pointer to AUDIO_BLOCK_SAMPLES * sizeof(float)
float* audio_buffer_l; // pointer to AUDIO_BLOCK_SAMPLES * sizeof(float)
#else
int16_t* audio_buffer_r; // pointer to AUDIO_BLOCK_SAMPLES * sizeof(int16_t)
int16_t* audio_buffer_l; // pointer to AUDIO_BLOCK_SAMPLES * sizeof(int16_t)
#endif
const uint16_t audio_block_time_ms = 1000000 / (SAMPLE_RATE / AUDIO_BLOCK_SAMPLES);
// Main sound calculation
@ -239,9 +279,6 @@ void loop()
{
fill_audio_buffer = 0;
audio_buffer_r = queue_r.getBuffer();
audio_buffer_l = queue_l.getBuffer();
#if defined (DEBUG) && defined (SHOW_CPU_LOAD_MSEC)
if (cpu_mem_millis > SHOW_CPU_LOAD_MSEC)
{
@ -289,10 +326,15 @@ void loop()
queue_r.playBuffer();
queue_l.playBuffer();
}
else
{
audio_buffer_problem++;
}
handle_input();
}
#if defined(USE_F32) && defined(USE_COMP_F32)
void setup_compressor(boolean use_HP_filter, float knee_dBFS, float comp_ratio, float attack_sec, float release_sec)
{
comp_r.enableHPFilter(use_HP_filter); comp_l.enableHPFilter(use_HP_filter);
@ -303,6 +345,7 @@ void setup_compressor(boolean use_HP_filter, float knee_dBFS, float comp_ratio,
comp_r.setAttack_sec(attack_sec, fs_Hz); comp_l.setAttack_sec(attack_sec, fs_Hz);
comp_r.setRelease_sec(release_sec, fs_Hz); comp_l.setRelease_sec(release_sec, fs_Hz);
}
#endif
void handle_input(void)
{
@ -536,6 +579,8 @@ void show_cpu_and_mem_usage(void)
Serial.print(overload, DEC);
Serial.print(F(" PEAK: "));
Serial.print(peak, DEC);
Serial.print(F(" AUDIO_BUF_ERR: "));
Serial.print(audio_buffer_problem, DEC);
Serial.println();
AudioProcessorUsageMaxReset();
AudioMemoryUsageMaxReset();

8
config.h
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@ -31,12 +31,12 @@
//#define TEENSY_AUDIO_BOARD 1
#define VOLUME 0.8
#define DEFAULT_MIDI_CHANNEL MIDI_CHANNEL_OMNI
#define AUDIO_MEM 300
#define AUDIO_MEM_F32 10
#define AUDIO_MEM 16
#define AUDIO_MEM_F32 16
#define SAMPLE_RATE 44100
#define REDUCE_LOUDNESS 0
#define REDUCE_LOUDNESS 1
#define USE_XFADE_DATA 1
//#define USE_COMP_F32 1
#if !defined(__MK66FX1M0__) // check for Teensy-3.6
#undef USE_ONBOARD_USB_HOST
#define NVOICES 32

9
mdaEPiano.cpp
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@ -194,7 +194,11 @@ float mdaEPiano::getParameter(int32_t index) {
return programs[curProgram].param[index];
}
#ifdef USE_F32
void mdaEPiano::process(float* outputs_r, float* outputs_l)
#else
void mdaEPiano::process(int16_t* outputs_r, int16_t* outputs_l)
#endif
{
int16_t v;
float x, l, r, od = overdrive;
@ -237,8 +241,13 @@ void mdaEPiano::process(float *outputs_r, float *outputs_l)
l += l * lmod * lfo1;
r += r * rmod * lfo1; //worth making all these local variables?
#ifdef USE_F32
outputs_l[frame] += l;
outputs_r[frame] += r;
#else
outputs_l[frame] = static_cast<int16_t>(l * 0x7fff) >> REDUCE_LOUDNESS;
outputs_r[frame] = static_cast<int16_t>(r * 0x7fff) >> REDUCE_LOUDNESS;
#endif
}
if (fabs(tl) < 1.0e-10) tl = 0.0f; //anti-denormal

4
mdaEPiano.h
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@ -79,7 +79,11 @@ public:
mdaEPiano(); // mdaEPiano(audioMasterCallback audioMaster);
~mdaEPiano();
#ifdef USE_F32
virtual void process(float *outputs_r, float *outputs_l);
#else
virtual void process(int16_t *outputs_r, int16_t *outputs_l);
#endif
virtual bool processMidiMessage(uint8_t type, uint8_t data1, uint8_t data2);
virtual void setProgram(int32_t program);
virtual void setParameter(int32_t index, float value);

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