func SampleAddDelay() s.Sound {
// Includes: Concat, TimedSound and MidiToSound
return s.AddDelay(s.ConcatSounds(
s.NewTimedSound(u.MidiToSound(55), 678),
s.NewTimedSound(u.MidiToSound(59), 678),
s.NewTimedSound(u.MidiToSound(62), 678),
), 123)
}
func SampleConcat() s.Sound {
// Includes: TimedSound and MidiToSound
return s.ConcatSounds(
s.NewTimedSound(u.MidiToSound(72), 400),
s.NewTimedSound(u.MidiToSound(74), 400),
s.NewTimedSound(u.MidiToSound(76), 400),
s.NewTimedSound(u.MidiToSound(60), 400),
s.NewTimedSound(u.MidiToSound(67), 1200),
)
}
func SampleNormalSum() s.Sound {
// Includes: TimedSound and MidiToSound
return s.SumSounds(
s.NewTimedSound(u.MidiToSound(55), 333),
s.NewTimedSound(u.MidiToSound(59), 333),
s.NewTimedSound(u.MidiToSound(62), 333),
s.NewTimedSound(u.MidiToSound(65), 333),
s.NewTimedSound(u.MidiToSound(67), 333),
)
}
func SampleMultiply() s.Sound {
// Includes: TimedSound and SineWave
all := make([]s.Sound, 20)
for i := 0; i < len(all); i++ {
all[i] = s.MultiplyWithClip(s.NewTimedSound(s.NewSineWave(659.25), 200), 0.2+float64(i)/10.0)
}
return s.ConcatSounds(all...)
}
func SampleRepeater() s.Sound {
// Includes: Concat, TimedSound and MidiToSound
return s.RepeatSound(s.ConcatSounds(
s.NewTimedSound(u.MidiToSound(50), 400),
s.NewTimedSound(u.MidiToSound(45), 400),
s.NewTimedSound(u.MidiToSound(47), 400),
s.NewTimedSound(u.MidiToSound(42), 400),
s.NewTimedSound(u.MidiToSound(43), 400),
s.NewTimedSound(u.MidiToSound(38), 400),
s.NewTimedSound(u.MidiToSound(43), 400),
s.NewTimedSound(u.MidiToSound(45), 400),
), 3)
}
func SampleDenseIIR() s.Sound {
// Includes: TimedSound and SineWave
all := make([]s.Sound, 10)
for i := 0; i < len(all); i++ {
all[i] = s.NewTimedSound(s.NewSineWave(600*float64(i)/4), 200)
}
return s.NewDenseIIR(s.ConcatSounds(all...),
[]float64{0.8922, -2.677, 2.677, -0.8922},
[]float64{2.772, -2.57, 0.7961},
)
}
// Converts a treble note offset to a midi offset
func noteTMidi(note float64, quaverCount float64) s.Sound {
// NOTE: Only [-8, 8] allowed for 'note'.
bFloat, sharp := math.Modf(note)
base := int(bFloat)
if sharp < 0 {
sharp += 1.0
base--
}
// 0 = B = offset 8
midi := trebleMidi[base+8] + trebleKeys[base+8]
if sharp > 0.1 {
midi++
}
midiToSound := s.NewTimedSound(util.MidiToSound(midi), quaverCount*q)
return s.NewADSREnvelope(midiToSound, 15, 50, 0.5, 20)
}
func SampleSampler() s.Sound {
// Includes: TimedSound and SineWave
return s.LinearSample(s.NewTimedSound(s.NewSineWave(392.00), 500), 2.0)
}
func SampleAdsrEnvelope() s.Sound {
// Includes: TimedSound and SineWave
return s.NewADSREnvelope(
s.NewTimedSound(s.NewSineWave(880.0), 875),
50, 200, 0.5, 100)
}
func SampleTimedTriangleSound() s.Sound {
// Includes: SquareWave
return s.NewTimedSound(s.NewSquareWave(261.63), 1000)
}
func SampleTimedSawtoothSound() s.Sound {
// Includes: SawtoothWave
return s.NewTimedSound(s.NewSawtoothWave(261.63), 1000)
}
func SampleTimedSineSound() s.Sound {
// Includes: SineWave
return s.NewTimedSound(s.NewSineWave(261.63), 1000)
}