# Pastebin KzbECQLS
case 'duoSynth':
                var synthOpts = {
                    oscillator: {
                        type: "sine"
                    },
                    envelope: {
                        attack: 0.03,
                        decay: 0,
                        sustain: 1,
                        release: 0.03
                    },
                };
                this.synthset['duoSynth'][1] = new Tone.DuoSynth(synthOpts);
                break;