Change Synth backend
This commit is contained in:
Bartłomiej Pluta
5
Audio.py
5
Audio.py
@@ -4,10 +4,7 @@ import time
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BREAK = 0
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def playNote(note, bpm):
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frequency = note.toFrequency()
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duration = 60 * 4 / note.duration / bpm
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pysine.sine(frequency, duration)
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#TODO: duration powinno byc w prawdziwych nutach: 4 = cwierc, 2 = pol etc.
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205
Environment.py
Normal file
205
Environment.py
Normal file
@@ -0,0 +1,205 @@
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import sys
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from Evaluator import RuntimeException, objectString
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from Note import *
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import random
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import Synth
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import time
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types = {
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int: 'integer',
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str: 'string',
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list: 'list',
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float: 'percent',
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Note: 'note',
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type(None): 'void'
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}
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class Environment():
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def __init__(self, scopes, functions):
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self.scopes = scopes
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self.functions = functions
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def findVariable(self, name, type=None):
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for scope in reversed(self.scopes):
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if name in scope:
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value = scope[name]
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if type is not None:
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if isinstance(value, type):
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return value
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else:
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return value
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raise RuntimeException(f"Variable '{name}' is not declared" + ("" if type is None else f" (expected type: {types[type]})"))
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def findVariableScope(self, name, type=None):
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for scope in reversed(self.scopes):
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if name in scope:
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if type is not None:
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if isinstance(scope[name], type):
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return scope
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else:
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return scope
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def sample(args, env):
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if len(args) == 1 and isinstance(args[0], list):
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return _sample(args[0])
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elif len(args) == 0:
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return _sample(Note.range(Note(NotePitch.C), Note(NotePitch.H)))
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elif all(isinstance(x, Note) for x in args):
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return _sample(args)
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else:
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pass # not valid signature
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def _sample(list):
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return list[int(random.uniform(0, len(list)))]
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def doPrint(args, env):
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print("".join([objectString(arg) for arg in args]))
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def semitonesList(list):
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for x in list:
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if not isinstance(x, Note) and not isistance(x, int):
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pass # invalid arguments
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withoutPauses = tuple(filter(lambda x: isinstance(x, Note), list))
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r = [Note.checkInterval(withoutPauses[i-1], withoutPauses[i]) for i, _ in enumerate(withoutPauses) if i != 0]
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return returnElementOrList(r)
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def returnElementOrList(list):
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return list[0] if len(list) == 1 else list
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def semitones(args, env):
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if len(args) > 0 and isinstance(args[0], list):
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return semitonesList(args[0])
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return semitonesList(args)
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def intervalList(list):
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r = [intervalToString(x) for x in list]
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return returnElementOrList(r)
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def interval(args, env):
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if len(args) > 0 and isinstance(args[0], list):
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return intervalList(args[0])
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return intervalList(args)
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def transposeTo(args, env):
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if len(args) > 1 and isinstance(args[0], Note) and all(isinstance(x, list) for i, x in enumerate(args) if i != 0):
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target = args[0]
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result = []
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for i, notes in enumerate(args):
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if i == 0:
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continue
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if len(notes) > 0:
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first = notes[0]
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semitones = semitonesList([target, first])
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result.append([note.transpose(semitones) for note in notes if isinstance(note, Note)])
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else:
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result.append([])
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return returnElementOrList(result)
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else:
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pass # not valid signature
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def transpose(args, env):
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if len(args) > 1 and isinstance(args[0], int):
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value = args[0]
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transposed = []
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for i, arg in enumerate(args):
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if i == 0:
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continue
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if not isinstance(arg, list):
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return # is not list
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transposed.append([note.transpose(value) for note in arg if isinstance(note, Note)])
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return transposed
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else:
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return # not valid signature
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def objectType(args, env):
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if len(args) == 1:
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return types[type(args[0])]
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else:
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pass # not valid signature
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def exit(args, env):
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if len(args) == 1 and isinstance(args[0], int):
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sys.exit(args[0])
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else:
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pass # not valid signature
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def upper(args, env):
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value = []
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for arg in args:
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if isinstance(arg, Note):
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value.append(arg.getUpperNeighbour())
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elif isinstance(arg, list):
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value.append(upperList(arg))
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else:
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pass # invalid argument
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return returnElementOrList(value)
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def upperList(list):
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if all(isinstance(x, Note) for x in list):
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value = [note.getUpperNeighbour() for note in list]
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return returnElementOrList(value)
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else:
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pass #not valid signature
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def lower(args, env):
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value = []
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for arg in args:
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if isinstance(arg, Note):
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value.append(arg.getLowerNeighbour())
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elif isinstance(arg, list):
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value.append(lowerList(arg))
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else:
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pass # invalid argument
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return returnElementOrList(value)
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def lowerList(list):
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if all(isinstance(x, Note) for x in list):
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value = [note.getLowerNeighbour() for note in list]
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return returnElementOrList(value)
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else:
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pass #not valid signature
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def sleep(args, env):
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if len(args) == 1 and isinstance(args[0], int):
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time.sleep(args[0])
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else:
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pass # not valid signature
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def rand(args, env):
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if not all(isinstance(x, list) and len(x) == 2 and isinstance(x[0], float) for x in args):
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return # not valid signature
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if sum([x[0] for x in args]) != 1.0:
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return # not sums to 100%
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choice = random.random()
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acc = 0
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for e in args:
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acc += e[0]
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if choice <= acc:
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return e[1]
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def createEnvironment():
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functions = {
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'print': doPrint,
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'synth': Synth.play,
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'pause': Synth.pause,
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'type': objectType,
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'sample': sample,
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'semitones': semitones,
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'interval': interval,
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'transpose': transpose,
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'transposeTo': transposeTo,
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'upper': upper,
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'lower': lower,
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'sleep': sleep,
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'random': rand,
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'exit': exit
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}
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variables = {
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"bpm": 120
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}
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return Environment([ variables ], functions)
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@@ -1,20 +1,11 @@
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import os
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from Tokenizer import tokenize, TokenType
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from Parser import parse
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from AST import *
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import sys
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from Note import *
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import random
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import Midi
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from Note import Note
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class RuntimeException(Exception):
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pass
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class Environment():
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def __init__(self, scopes, functions):
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self.scopes = scopes
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self.functions = functions
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def evaluateProgram(program, environment):
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for node in program.children:
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evaluate(node, environment)
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@@ -23,18 +14,12 @@ def evaluateInteger(integer, environment):
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return integer.value
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def evaluatePercent(percent, environment):
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pass
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return percent.value.value * 0.01
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def evaluateIdentifier(identifier, environment):
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value = findVariable(identifier.identifier, environment)
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value = environment.findVariable(identifier.identifier)
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return value
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def findVariable(name, environment):
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for scope in reversed(environment.scopes):
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if name in scope:
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return scope[name]
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raise RuntimeException(f"Variable '{name}' is not declared")
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def evaluateString(string, environment):
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value = string.value
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for scope in reversed(environment.scopes):
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@@ -42,6 +27,21 @@ def evaluateString(string, environment):
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value = value.replace('{' + k + '}', objectString(v)) #TODO: poprawic
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return value
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def objectString(obj):
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if isinstance(obj, str):
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return obj
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if isinstance(obj, int):
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return str(obj)
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if isinstance(obj, Note):
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return obj.note.name
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if isinstance(obj, list):
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return "(" + ", ".join([objectString(v) for v in obj]) + ")"
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if isinstance(obj, float):
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return f"{int(obj*100)}%"
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if obj is None:
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raise RuntimeException(f"Trying to interpret void")
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raise RuntimeException(f"Don't know how to interpret {str(obj)}")
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def evaluateNote(note, environment):
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return note.value
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@@ -69,6 +69,10 @@ def evaluateList(list, environment):
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def evaluateAssignment(assignment, environment):
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target = assignment.target.identifier
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value = evaluate(assignment.value, environment)
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scopeOfExistingVariable = environment.findVariableScope(target)
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if scopeOfExistingVariable is not None:
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scopeOfExistingVariable[target] = value
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else:
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environment.scopes[-1][target] = value
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def evaluateAsterisk(asterisk, environment):
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@@ -130,77 +134,3 @@ def evaluate(input, environment):
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return evaluateColon(input, environment)
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if isinstance(input, IdentifierNode):
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return evaluateIdentifier(input, environment)
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def rand(args, env):
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if len(args) == 1 and isinstance(args[0], list):
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return args[0][int(random.uniform(0, len(args[0])))]
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def objectString(obj):
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if isinstance(obj, str):
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return obj
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if isinstance(obj, int):
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return str(obj)
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if isinstance(obj, Note):
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return obj.note.name
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if isinstance(obj, list):
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return "(" + ", ".join([objectString(v) for v in obj]) + ")"
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raise RuntimeException(f"Don't know how to interpret {str(obj)}")
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def prt(args, env):
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print("".join([objectString(arg) for arg in args]))
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def semitonesList(list):
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withoutPauses = tuple(filter(lambda x: isinstance(x, Note), list))
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r = [Note.checkInterval(withoutPauses[i-1], withoutPauses[i]) for i, _ in enumerate(withoutPauses) if i != 0]
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return r[0] if len(r) == 1 else r
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def semitones(args, env):
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if len(args) > 0 and isinstance(args[0], list):
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return semitonesList(args[0])
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return semitonesList(args)
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def intervalList(list):
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r = [intervalToString(x) for x in list]
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return r[0] if len(r) == 1 else r
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def interval(args, env):
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if len(args) > 0 and isinstance(args[0], list):
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return intervalList(args[0])
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return intervalList(args)
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def transpose(args, env):
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if len(args) > 1 and isinstance(args[0], int):
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value = args[0]
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transposed = []
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for i, arg in enumerate(args):
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if i == 0:
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continue
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if not isinstance(arg, list):
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return # is not list
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transposed.append([note.transpose(value) for note in arg if isinstance(note, Note)])
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return transposed
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else:
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return # not valid signature
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if __name__ == "__main__":
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functions = {
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'print': prt,
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'midi': Midi.play,
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'pause': Midi.pause,
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'type': lambda args, env: print(type(args[0])),
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'random': rand,
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'semitones': semitones,
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'interval': interval,
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'transpose': transpose
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}
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with open(sys.argv[1], 'r') as source:
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lines = [line.rstrip('\n') for line in source.readlines()]
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tokens = [token for token in tokenize(lines) if token.type != TokenType.COMMENT]
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ast = parse(tokens)
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environment = Environment([{ "bpm": 120 }], functions)
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evaluate(ast, environment)
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44
Midi.py
44
Midi.py
@@ -1,44 +0,0 @@
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from Note import *
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import Audio
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import os
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import sys
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import time
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def parseNotes(notes):
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map = { NotePitch.C: 'c', NotePitch.CIS: 'c#', NotePitch.D: 'd', NotePitch.DIS: 'd#',
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NotePitch.E: 'e', NotePitch.F: 'f', NotePitch.FIS: 'f#', NotePitch.G: 'g',
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NotePitch.GIS: 'g#', NotePitch.A: 'a', NotePitch.AIS: 'a#', NotePitch.H: 'b' }
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parsed = [(f"{map[note.note]}{note.octave}", note.duration) for note in notes]
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print(parsed)
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def play(args, env):
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if len(args) > 0 and isinstance(args[0], list):
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playList(args[0], env)
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return
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playList(args, env)
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def playList(notes, env):
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bpm = findVariable("bpm", env)
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if all(isinstance(x, Note) or isinstance(x, int) for x in notes):
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for x in notes:
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if isinstance(x, Note):
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Audio.playNote(x, bpm)
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if isinstance(x, int):
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doPause(x, bpm)
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#sys.stdout = open(os.devnull, 'w')
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#sys.stderr = open(os.devnull, 'w')
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#sys.stdout = sys.__stdout__
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#sys.stderr = sys.__stderr__
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def findVariable(name, environment):
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for scope in reversed(environment.scopes):
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if name in scope:
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return scope[name]
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def pause(args, env):
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bpm = findVariable("bpm", env)
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value = args[0]
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doPause(value, bpm)
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def doPause(value, bpm):
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time.sleep(60 * 4 / value / bpm)
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52
Note.py
52
Note.py
@@ -3,18 +3,18 @@ from Error import ParseError
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import math
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class NotePitch(Enum):
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C = 1
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CIS = 2
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D = 3
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DIS = 4
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E = 5
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F = 6
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FIS = 7
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G = 8
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GIS = 9
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A = 10
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AIS = 11
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H = 12
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C = 0
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CIS = 1
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D = 2
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DIS = 3
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E = 4
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F = 5
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FIS = 6
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G = 7
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GIS = 8
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A = 9
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AIS = 10
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H = 11
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def __str__(self):
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return self.name
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@@ -54,13 +54,6 @@ class NotePitch(Enum):
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except KeyError as e:
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raise ParseError(f"Note '{string}' does not exist")
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@staticmethod
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def range(a, b):
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aValue = a.value
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bValue = b.value
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return [note[1] for note in NotePitch.__members__.items() if note[1].value >= aValue and note[1].value <= bValue]
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class Note:
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def __init__(self, note, octave = 4, duration = 4):
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if type(note) == str:
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@@ -79,10 +72,7 @@ class Note:
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def transpose(self, interval):
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origIntRepr = self._intRepr()
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transposedIntRepr = origIntRepr + interval
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pitch = transposedIntRepr % len(NotePitch)
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note = NotePitch(pitch if pitch != 0 else self.note.value)
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octave = int(transposedIntRepr / len(NotePitch))
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return Note(note, octave, self.duration)
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return Note._fromIntRepr(transposedIntRepr, self.duration)
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def _intRepr(self):
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return self.octave * len(NotePitch) + self.note.value
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@@ -93,13 +83,27 @@ class Note:
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def __repr__(self):
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return self.__str__()
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def getLowerNeighbour(self):
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return Note._fromIntRepr(max((self._intRepr()-1), 0))
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def getUpperNeighbour(self):
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maxIntRepr = Note(NotePitch.H, 9)._intRepr() # max value for one-digit octave number
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return Note._fromIntRepr(min((self._intRepr()+1), maxIntRepr))
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@staticmethod
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def _fromIntRepr(intRepr, duration=4):
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note = NotePitch(intRepr % len(NotePitch))
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octave = int(intRepr / len(NotePitch))
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return Note(note, octave, duration)
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|
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@staticmethod
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def checkInterval(a, b):
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return a._intRepr() - b._intRepr()
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@staticmethod
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def range(a, b):
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return [Note(note, 1, 1) for note in NotePitch.range(a.note, b.note)]
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return [Note._fromIntRepr(x, 4) for x in range(a._intRepr(), b._intRepr()+1)]
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|
||||
def intervalToString(interval):
|
||||
octaveInterval = int(abs(interval) / len(NotePitch))
|
||||
|
||||
42
Synth.py
Normal file
42
Synth.py
Normal file
@@ -0,0 +1,42 @@
|
||||
import numpy as np
|
||||
import sounddevice as sd
|
||||
from Note import Note
|
||||
import os
|
||||
import sys
|
||||
import time
|
||||
|
||||
FS = 44100
|
||||
|
||||
|
||||
def play(args, env):
|
||||
if len(args) > 0 and isinstance(args[0], list):
|
||||
playList(args[0], env)
|
||||
return
|
||||
playList(args, env)
|
||||
|
||||
def playList(notes, env):
|
||||
bpm = env.findVariable("bpm", int)
|
||||
if all(isinstance(x, Note) or isinstance(x, int) for x in notes):
|
||||
for x in notes:
|
||||
if isinstance(x, Note):
|
||||
playNote(x, bpm)
|
||||
if isinstance(x, int):
|
||||
doPause(x, bpm)
|
||||
|
||||
def playNote(note, bpm):
|
||||
frequency = note.toFrequency()
|
||||
duration = 60 * 4 / note.duration / bpm
|
||||
sine(frequency, duration)
|
||||
|
||||
def sine(frequency, duration):
|
||||
samples = (np.sin(2*np.pi*np.arange(FS*duration)*frequency/FS)).astype(np.float32)
|
||||
sd.play(samples, FS)
|
||||
time.sleep(duration)
|
||||
|
||||
def doPause(value, bpm):
|
||||
time.sleep(60 * 4 / value / bpm)
|
||||
|
||||
def pause(args, env):
|
||||
bpm = findVariable("bpm", env)
|
||||
value = args[0]
|
||||
doPause(value, bpm)
|
||||
17
Tokenizer.py
17
Tokenizer.py
@@ -166,7 +166,7 @@ tokenizers = (
|
||||
tokenizeWhitespaces
|
||||
)
|
||||
|
||||
def tokenize(lines):
|
||||
def doTokenize(lines):
|
||||
tokens = []
|
||||
for lineNumber, line in enumerate(lines):
|
||||
current = 0
|
||||
@@ -185,15 +185,6 @@ def tokenize(lines):
|
||||
|
||||
return [token for token in tokens if token.type is not None]
|
||||
|
||||
if __name__ == "__main__":
|
||||
try:
|
||||
with open(sys.argv[1], 'r') as source:
|
||||
lines = [line.rstrip('\n') for line in source.readlines()]
|
||||
|
||||
tokens = tokenize(lines)
|
||||
|
||||
for token in tokens:
|
||||
print(token)
|
||||
except TokenizerError as e:
|
||||
print(str(e))
|
||||
|
||||
def tokenize(lines):
|
||||
tokens = doTokenize(lines)
|
||||
return list(filter(lambda x: x.type != TokenType.COMMENT, tokens))
|
||||
|
||||
17
main.py
Normal file
17
main.py
Normal file
@@ -0,0 +1,17 @@
|
||||
from Tokenizer import tokenize
|
||||
from Parser import parse
|
||||
from Evaluator import evaluate
|
||||
from Environment import createEnvironment
|
||||
import sys
|
||||
|
||||
if __name__ == "__main__":
|
||||
with open(sys.argv[1], 'r') as source:
|
||||
lines = [line.rstrip('\n') for line in source.readlines()]
|
||||
|
||||
env = createEnvironment()
|
||||
|
||||
tokens = tokenize(lines)
|
||||
|
||||
ast = parse(tokens)
|
||||
|
||||
evaluate(ast, env)
|
||||
Reference in New Issue
Block a user