doohoyi/forest-all-around
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

4 voices sampler works ok... but.. unstable. if you tease it.

Browse source
This commit is contained in:
Dooho Yi 2019-12-30 14:28:59 +09:00
parent 95fa96a864
commit c78b4d5601
2 changed files with 81 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
sampler/platformio.ini
View file

@ -14,7 +14,7 @@ default_envs = teensy35
[common]
lib_ignore = Audio, SD
lib_deps =
721@3.0.2 ; TaskScheduler
721 ; TaskScheduler
322 ; SdFat
[env:teensy35]

106
sampler/src/main.cpp
View file

@ -22,6 +22,17 @@
// multiple sound playback -> 4 voices -- TESTING
//
//----------<configuration>----------
//
// 'ANALOG_REF_EXTERNAL_3P3V'
// --> this will output 3.3v-pp from dacs pins of the board.
// outdoor or big space. you will need this.
// but, teensy36 board dacs pins once might have burned off cause of this?
// teensy35 was okay since they are stronger (5V compatible I/O)
//
// #define ANALOG_REF_EXTERNAL_3P3V
//----------</configuration>----------
//teensy audio
#include <Audio.h>
#include <SdFat.h>
@ -110,17 +121,25 @@ public:
// the filename to play is...
Serial.println(filename);
// go! (re-triggering)
if (player.isPlaying()) player.stop();
player.play(filename);
// --> we just believe that this 'note' is available. NO additional checking.
Serial.println("1");
// --> we just believe that this 'file' is existing & available. NO additional checking.
delay(10);
Serial.println("2");
// --> let's wait a bit before exit, to give more room to work for background workers(==filesystem|audio-interrupts)
// --> if we get too fast 'player.play' twice, then the system might get broken/stalled. ?
}
//
void noteOff() {
player.stop();
delay(10); // wait to close file?
// present my 'note' -> 'free'.
note_now = 0;
}
//
void setVelocity(int val) {
if (val < 0) val = 0;
float vv = (float)val / 127; // allowing +gain for values over 127.
ampL.gain(vv);
ampR.gain(vv);
@ -152,9 +171,9 @@ void scheduleNoteOn()
//filename buffer - 8.3 naming convension! 8+1+3+1 = 13
char fname[13] = "NN.WAV";
//search for the sound file
int limit = (note_sched % 100); // 0~99
fname[0] = '0' + (limit / 10); // [N]N.WAV
fname[1] = '0' + (limit % 10); // N[N].WAV
int note = (note_sched % 100); // 0~99
fname[0] = '0' + (note / 10); // [N]N.WAV
fname[1] = '0' + (note % 10); // N[N].WAV
//TEST
Serial.println(fname);
AudioNoInterrupts();
@ -166,21 +185,27 @@ void scheduleNoteOn()
}
//ok, let's schedule a voice
//btw, is it already playing?
// --> entry : (# of voice bank, playing note #)
bool is_already = false;
for (uint32_t idx = 0; idx < poly_queue.size(); idx++) {
if (poly_queue[idx].first == note_sched) {
if (poly_queue[idx].second == note) {
//oh, it is alreay playing
is_already = true;
// --> what to do?
// (1) re-trigger (stop-and-restart)
Voice& v = poly_bank[poly_queue[idx].second];
is_already = true;
Voice& v = poly_bank[poly_queue[idx].first];
v.noteOff();
delay(10); // slight wait.
v.noteOn(note_sched);
v.noteOn(note);
v.setVelocity(velocity_sched);
// (2) do nothing (just let it play till end)
// (3) trigger a new one? (schedule a new one overlapping)
break;
// (2) do nothing (just let it play till end)
// is_already = true;
// break;
// (3) trigger a new one? (schedule a new one overlapping)
// --> then you just ignore the fact.
// i.e. do not tick 'is_already = true',
// then a new one will be automatically assigned.
// break;
}
}
//it's sth. new..
@ -193,12 +218,10 @@ void scheduleNoteOn()
is_found_idle = true;
//play start-up
Voice& v = poly_bank[idx];
v.noteOn(note_sched);
v.noteOn(note);
v.setVelocity(velocity_sched);
//leave a record : (# of voice bank, playing note #)
poly_queue.push_back(std::pair<int, int>(idx, note_sched));
// std::pair<int, int> description(idx, note_sched);
// poly_queue.push_back(description);
poly_queue.push_back(std::pair<int, int>(idx, note));
break;
}
}
@ -212,26 +235,52 @@ void scheduleNoteOn()
int newentry = oldest;
//
Voice& v = poly_bank[newentry];
v.noteOn(note_sched);
v.noteOn(note);
v.setVelocity(velocity_sched);
//leave a record : (# of voice bank, playing note #)
poly_queue.push_back(std::pair<int, int>(newentry, note_sched));
// std::pair<int, int> description(idx, note_sched);
// poly_queue.push_back(description);
poly_queue.push_back(std::pair<int, int>(newentry, note));
}
}
//small waiting time for 'isPlaying' update?
// delay(10);
//monitoring the queue
Serial.println("--notoOn:poly_queue---");
Serial.println("(voice#, note#)");
for (uint32_t idx = 0; idx < poly_queue.size(); idx++) {
Serial.print("(");
Serial.print(poly_queue[idx].first);
Serial.print(", ");
Serial.print(poly_queue[idx].second);
Serial.println(")");
}
Serial.println();
}
//
Task scheduleNoteOn_task(0, TASK_ONCE, scheduleNoteOn);
//
void scheduleNoteOff() {
for (uint32_t idx = 0; idx < poly_bank.size(); idx++) {
if (poly_bank[idx].note_now == note_sched) {
poly_bank[idx].noteOff();
for (auto it = poly_queue.begin(); it != poly_queue.end(); ++it) {
//is this meaningful, btw?
if ((*it).second == note_sched) {
//okay. we've got that.
Serial.println("okay. we've got that.");
//a record : (# of voice bank, playing note #)
poly_bank[(*it).first].noteOff(); // stop the bank
poly_queue.erase(it); // remove the record
break;
}
}
//monitoring the queue
Serial.println("--notoOff:poly_queue---");
Serial.println("(voice#, note#)");
for (uint32_t idx = 0; idx < poly_queue.size(); idx++) {
Serial.print("(");
Serial.print(poly_queue[idx].first);
Serial.print(", ");
Serial.print(poly_queue[idx].second);
Serial.println(")");
}
Serial.println();
}
//
Task scheduleNoteOff_task(0, TASK_ONCE, scheduleNoteOff);
@ -251,6 +300,9 @@ void playcheck() {
//mark the indicator : HIGH: ON
digitalWrite(13, HIGH);
}
// //
// Serial.print("AM_max:");
// Serial.println(AudioMemoryUsageMax());
}
//
Task playcheck_task(100, TASK_FOREVER, playcheck, &runner, true);
@ -370,13 +422,15 @@ void setup() {
poly_bank.push_back(__voice_4);
//audio
AudioMemory(120);
AudioMemory(20); // <-- used AudioMemoryUsageMax() to check out!
#if !defined(TEENSY36)
//NOTE!! teensy36 board..
// output broken? ..
// so disable this for teensy36..
// this is the cause??
// dacs1.analogReference(EXTERNAL);
#if defined(ANALOG_REF_EXTERNAL_3P3V)
dacs1.analogReference(EXTERNAL);
#endif
#endif
mixer1.gain(0,1.0);
mixer1.gain(1,1.0);
@ -396,8 +450,8 @@ void setup() {
amp8.gain(1.0);
//tasks
runner.addTask(playcheck_task);
playcheck_task.enable();
// runner.addTask(playcheck_task);
// playcheck_task.enable();
//
runner.addTask(scheduleNoteOn_task);
runner.addTask(scheduleNoteOff_task);