Guitar
Guitar simulation using Karplus-Strong written in pure java. Playing some famous iranian songs by tablature!
Creates 6 thread for each GuitarString whenever you start an instance of Guitar, So if you play two note on two different strings, they won't block each other, meanwhile you can't play two notes on same string at the same time! Just like a real Guitar :)
Create an instance of Guitar:
Guitar guitar = new Guitar(8000, 1);
guitar.start();Play Note:
guitar.playNote(GuitarNotes.STRINGS[string_index][fret_index]);
// OR
guitar.playNote(new Note(null, 98 /* freq */));
Play Chord:
guitar.playChordSubsequently(GuitarChords.Em);
// OR
guitar.playChordReverse(new Chord("Dm", 1, 3, 2, 0, -1, -1));
// OR
guitar.playChordSubsequentlyReverse(new Chord(3, "Gm", 0, 0, 0, 5, 5, 0));Note: There are more interesting functions to customize playing a chord
Custom GuitarString
Create a custom string with its own thread
GuitarString string = new GuitarString(8000);
new GuitarStringPlayer(string, 1).start();
for (int i = 0; i < 6; i++) {
for (int j = 1; j <= 3; j++) {
Thread.sleep(200);
string.setPitch(GuitarNotes.STRINGS[i][j].getFrequency(), 0);
}
}Test.mov
Play Tablature:
new Tablature()
.withListener((note, i) -> System.out.println(note))
.add(2, 0, 0)
.add(2, 3, 500)
.add(1, 3, 200)
.add(1, 1, 200)
.add(2, 3, 500)
...
.start(guitar);
Screen.Recording.2022-07-26.at.7.42.50.PM.mp4
BellaCiao.mov
See More:
- Bella Ciao
- Sarnevesht - Shadmehr Aghili
- Kooh - Shadmehr Aghili
- Do Panjereh - Googoosh
Android Implementation
Replace javax.sound.sampled with android.media.AudioTrack in GuitarStringPlayer.
References
- Karplus-Strong Wikipedia
- Karplus-Strong algorithm Python
- Digital Synthesis of Plucked-String
- Guitar Frets & Their Notes vs Frequency
- Kooh-ShadmehrAghili Guitar Tab
- Bella Ciao Guitar Tab
