1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
02-sharing-audio.py - Sharing audio signals between processes.
============================================================================================================================================
Usage:
python3 -i 02-sharing-audio.py
.. code-block:: python
import sys, time, random, multiprocessing
from pyo import *
if sys.platform.startswith("linux"):
audio = "jack"
elif sys.platform.startswith("darwin"):
audio = "portaudio"
print("SharedTable does not behave correctly under MacOS... This example doesn't work.")
else:
print("Multicore examples don't run under Windows... Sorry!")
exit()
class Proc(multiprocessing.Process):
def __init__(self, create):
super(Proc, self).__init__()
self.daemon = True
self.create = create
def run(self):
self.server = Server(audio=audio)
self.server.deactivateMidi()
self.server.boot().start()
bufsize = self.server.getBufferSize()
nbands = 20
names = ["/f%02d" % i for i in range(nbands)]
if self.create: # 50 bands frequency splitter.
freq = [20 * 1.1487 ** i for i in range(nbands)]
amp = [pow(10, (i * -1) * 0.05) * 8 for i in range(nbands)]
self.input = SfPlayer(SNDS_PATH + "/transparent.aif", loop=True)
self.filts = IRWinSinc(self.input, freq, freq, 3, 128, amp)
self.table = SharedTable(names, create=True, size=bufsize)
self.recrd = TableFill(self.filts, self.table)
else: # Independent transposition per band.
self.table = SharedTable(names, create=False, size=bufsize)
self.tscan = TableScan(self.table)
transpofac = [random.uniform(0.98, 1.02) for i in range(nbands)]
self.pvana = PVAnal(self.tscan, size=1024, overlaps=4)
self.pvtra = PVTranspose(self.pvana, transpo=transpofac)
self.pvsyn = PVSynth(self.pvtra).out()
time.sleep(30)
self.server.stop()
if __name__ == "__main__":
analysis = Proc(create=True)
synthesis = Proc(create=False)
analysis.start()
synthesis.start()
|
