func BenchmarkSong(b *testing.B) {
	s := song.New(song.Tempo(1.0))
	s.AddAfter(note.Note{Note: note.E, Octave: 4}, note.Full)
	ks := Song{
		Song:         s,
		SamplingRate: 44100,
	}
	b.ResetTimer()
	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		ks.Sound(FakeWriter{})
	}
}
Exemple #2
0
func New(r io.Reader) Hasher {
	buf := make([]byte, 16)
	r.Read(buf)

	speed := song.Slow + song.Tempo(float64(buf[0])/256)
	scl := scaleMap[int(buf[1])%4]
	var sum int
	for i := 1; i < len(buf); i++ {
		sum += int(buf[i])
	}
	nt := note.Note{Note: note.C, Octave: 1}.AddHalfSteps(sum % 36)
	s := song.New(speed)
	s.Scale = scl.New(nt, buf[2]%2 == 0)

	return Hasher{
		Song: &s,
		r:    r,
	}
}