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working sine

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aprilnightk 2025-08-08 23:36:04 +03:00
parent b20299ff78
commit 1b96f75fec
3 changed files with 12 additions and 10 deletions
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9
core/room.py
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@ -6,7 +6,7 @@ from .soundnode import *
TAU = 2 * math.pi TAU = 2 * math.pi
def stb(i: int) -> bytes: def stb(i: int) -> bytes:
return i.to_bytes(3, byteorder='big', signed=True) return i.to_bytes(3, byteorder='little', signed=True)
class Room: class Room:
@ -25,6 +25,8 @@ class Room:
self.left_sink = SoundNode('LEFT', self) self.left_sink = SoundNode('LEFT', self)
self.right_sink = SoundNode('RIGHT', self) self.right_sink = SoundNode('RIGHT', self)
self.sine_multiplier = TAU / self.sample_rate
def set_bit_depth(self, bit_depth): def set_bit_depth(self, bit_depth):
self.bit_depth = bit_depth self.bit_depth = bit_depth
@ -53,7 +55,6 @@ class Room:
wav.setnchannels(2) wav.setnchannels(2)
wav.setsampwidth(int(self.bit_depth / 8.0)) wav.setsampwidth(int(self.bit_depth / 8.0))
wav.setsampwidth(3)
wav.setframerate(self.sample_rate) wav.setframerate(self.sample_rate)
frames = [] frames = []
@ -63,8 +64,8 @@ class Room:
for t in range(start_t, end_t): for t in range(start_t, end_t):
if t%1000 == 0: #№if t%1000 == 0:
print(t) # print(t)
f = self.lowest_freq f = self.lowest_freq
left_total_amp = 0 left_total_amp = 0

4
core/soundnode.py
View file

@ -34,12 +34,12 @@ class SoundNode:
def amp_at_tick(self, f, t): def amp_at_tick(self, f, t):
return self.room.max_amp * self.frequency_max_rel_amp(f, t) * math.sin(TAU * f * t/float(self.room.sample_rate)) return self.room.max_amp * self.frequency_max_rel_amp(f, t) * math.sin(self.room.sine_multiplier * f * t)
def amp_at_tick_by_air(self, f, t, node): def amp_at_tick_by_air(self, f, t, node):
dist = self.distance_to_node(node, t) dist = self.distance_to_node(node, t)
t = t - ((self.room.speed_of_sound*dist)/float(self.room.sample_rate)) t = t - ((self.room.speed_of_sound*dist)/float(self.room.sample_rate))
return self.room.max_amp * self.frequency_max_rel_amp(f, t) * math.sin(TAU * f * t/float(self.room.sample_rate)) return self.room.max_amp * self.frequency_max_rel_amp(f, t) * math.sin(self.room.sine_multiplier * f * t)

9
test.py
View file

@ -1,9 +1,10 @@
from core.room import Room from core.room import Room
from core.soundnode import SoundNode from core.soundnode import SoundNode
import math
R = Room() R = Room()
R.left_sink.start_location = (-1, 0, 0) R.left_sink.start_location = (-1, 0, 0)
R.right_sink.start_location = (2, 0, 0) R.right_sink.start_location = (1, 0, 0)
class SineNode(SoundNode): class SineNode(SoundNode):
@ -15,8 +16,8 @@ class SineNode(SoundNode):
def frequency_max_rel_amp(self, f, t): def frequency_max_rel_amp(self, f, t):
if f == self.freq: if (f > self.freq-20) and (f < self.freq+20):
return self.volume return self.volume*0.05*math.sin(f)
return 0 return 0
@ -25,4 +26,4 @@ sn = SineNode(440, R)
R.link_wire(sn, R.left_sink) R.link_wire(sn, R.left_sink)
R.link_wire(sn, R.right_sink) R.link_wire(sn, R.right_sink)
R.record('test5.wav', 0, 2) R.record('test5.wav', 0, 6)