"""2024-12-27
Vendo o Som 8 - Syncronicity II (The Police)
Exercício de visualização de som com círculos
png
Sketch,py5,CreativeCoding
"""
import math
import numpy as np
import py5
import sounddevice as sd
from utils import helpers
sketch = helpers.info_for_sketch(__file__, __doc__)
CIRCULOS = 12
ALL_DATA = []
DEVICE = 0
GAIN = 50
BLOCK_DURATION = 10
SAMPLING_RATE = sd.query_devices(DEVICE, "input")["default_samplerate"]
def callback(signal, frames, time, status):
low, high = [100, 2000]
delta_f = (high - low) / (80 - 1)
fftsize = math.ceil(SAMPLING_RATE / delta_f)
if any(signal):
# Compute the corresponding frequencies for the FFT result
num_samples = len(signal)
freq_bins = np.fft.fftfreq(num_samples, d=1 / SAMPLING_RATE)
fft_result = np.fft.rfft(signal[:, 0], n=fftsize)
magnitude = np.abs(fft_result)
magnitude *= GAIN / fftsize
freq_bins = freq_bins
ALL_DATA.append((freq_bins, magnitude))
def circulo(mult, data, frame_max, frame_min, offset):
pontos = []
total = len(data)
passo = 360 / total
for idx in range(0, total):
direcao = 1
pb = data[idx]
z = py5.remap(pb, frame_min, frame_max, 0, 80) * direcao
angulo = idx * passo + offset
x0 = np.cos(py5.radians(angulo)) * mult
y0 = np.sin(py5.radians(angulo)) * mult
z0 = np.sin(py5.radians(angulo)) * mult
pontos.append((x0, y0, z0, x0, y0, z0 + z))
return pontos
def setup():
py5.size(helpers.LARGURA, helpers.ALTURA, py5.P3D)
py5.color_mode(py5.HSB, 360, 100, 100)
py5.ellipse_mode(py5.CENTER)
while len(ALL_DATA) < 100:
print(len(ALL_DATA))
def draw_circle(data, peso, mult, zb, hb, b, offset):
frame_min = np.min(data)
frame_max = np.max(data)
pontos = circulo(mult, data, frame_max, frame_min, offset)
py5.stroke_weight(peso)
for x0, y0, z0, x, y, z in pontos:
h = (((z - z0) * 1.8) % 180) * 2 + hb
py5.stroke(py5.color(h, 90, b))
py5.line(x0, y0, zb + z0, x, y, zb + z)
def draw():
py5.background(60, 5, 5)
passo = 900 / (CIRCULOS * 3)
offset_b = 720 / CIRCULOS * 2
offset = 180
# Copy data to local list
idx0 = py5.frame_count
idx1 = py5.frame_count + CIRCULOS * 4
local_data = [item for item in ALL_DATA[idx0:idx1:2]]
print(idx0, idx1, len(ALL_DATA))
with py5.push_style():
with py5.push_matrix():
py5.translate(py5.width // 2, py5.height // 2, -20)
py5.rotate_y(py5.radians(20))
for i in range(0, CIRCULOS):
hb = ((CIRCULOS - i) / CIRCULOS) * 60
b = ((CIRCULOS - i) / CIRCULOS) * 80 + 20
py5.rotate_x(py5.radians(i / 2))
for divisor in range(1, 2):
zb = py5.cos(py5.radians(i * (360 / CIRCULOS))) * 10
peso = np.abs((CIRCULOS - i + 1) / 5)
data = local_data.pop()[1]
mult = (i + 1) * (passo / divisor)
draw_circle(data, peso, mult, zb, hb, b, offset)
offset += offset_b
helpers.write_legend(sketch=sketch, frame="#000")
def key_pressed():
key = py5.key
if key == " ":
save_and_close()
def save_and_close():
py5.no_loop()
helpers.save_sketch_image(sketch)
py5.exit_sketch()
if __name__ == "__main__":
with sd.InputStream(
device=DEVICE,
channels=1,
callback=callback,
blocksize=int(SAMPLING_RATE * BLOCK_DURATION / 1000),
samplerate=SAMPLING_RATE,
):
py5.run_sketch()