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Enable tuning

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This commit is contained in:
Bartłomiej Pluta
2019-09-06 22:54:22 +02:00
parent 2c1f5f7942
commit 06579e8e78
5 changed files with 56 additions and 31 deletions
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39
smnp/note/pitch.py
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@@ -2,6 +2,7 @@ from enum import Enum
from smnp.error.note import NoteException
_semitone = 2**(1/12)
class NotePitch(Enum):
C = 0
@@ -17,21 +18,21 @@ class NotePitch(Enum):
AIS = 10
H = 11
def toFrequency(self):
return {
NotePitch.C: 16.35,
NotePitch.CIS: 17.32,
NotePitch.D: 18.35,
NotePitch.DIS: 19.45,
NotePitch.E: 20.60,
NotePitch.F: 21.83,
NotePitch.FIS: 23.12,
NotePitch.G: 24.50,
NotePitch.GIS: 25.96,
NotePitch.A: 27.50,
NotePitch.AIS: 29.17,
NotePitch.H: 30.87
}[self]
# def toFrequency(self):
# return {
# NotePitch.C: 16.35,
# NotePitch.CIS: 17.32,
# NotePitch.D: 18.35,
# NotePitch.DIS: 19.45,
# NotePitch.E: 20.60,
# NotePitch.F: 21.83,
# NotePitch.FIS: 23.12,
# NotePitch.G: 24.50,
# NotePitch.GIS: 25.96,
# NotePitch.A: 27.50,
# NotePitch.AIS: 29.17,
# NotePitch.H: 30.87
# }[self]
def __str__(self):
return self.name
@@ -50,6 +51,14 @@ class NotePitch(Enum):
raise NoteException(f"Note '{string}' does not exist")
class Tuning(object):
def __init__(self, a4=440):
self.tuning = { value: a4/_semitone**(57-i) for i, value in enumerate(NotePitch.__members__) }
def __getitem__(self, item):
return self.tuning[str(item)]
stringToPitch = {
'cb': NotePitch.H,
'c': NotePitch.C,