test_pyo.py

import sys, time
from pyo import *

if sys.platform == "win32":
    host_apis = ["mme", "directsound", "asio", "wasapi", "wdm-ks"]
else:
    print("This program must be used on a windows system! Ciao!")
    exit()

print("* Checking for any available audio input... *")

input_names, input_indexes  = pa_get_input_devices()

print("* Checking audio output hosts... *")

#(self, sr=44100, nchnls=2, buffersize=256, duplex=1, audio='portaudio', 
#jackname='pyo', ichnls=None, winhost="wasapi", midi="portmidi"):

# s = Server(sr=48000, nchnls=1, buffersize=512, duplex=0)
s = Server(sr=48000, duplex=0)
s.verbosity = 0
host_results = []
for host in host_apis:
    print("* Testing %s... *" % host)
    try:
        s.reinit(sr=48000, buffersize=1024, duplex=0, winhost=host)
        s.boot().start()
        a = Sine(freq=440, mul=0.2).out()
        time.sleep(2)
        s.stop()
        s.shutdown()
        host_results.append(True)
    except:
        host_results.append(False)

print("\nResults")
print("-------\n")

if len(input_names):
    print("Duplex mode OK!")
    print("Initialize the Server with duplex=1 as argument.\n")
else:
    print("No input available. Duplex mode should be turned off.")
    print("Initialize the Server with duplex=0 as argument.\n")

for i, host in enumerate(host_apis):
    if host_results[i]:
        print("Host: %s  ==>  OK!" % host)
    else:
        print("Host: %s  ==>  Failed..." % host)

print("Initialize the Server with the desired host given to winhost argument.")

print("\nFinished!")	
	
# s = Server().boot()
# s.start()
# s.stop()
# s = Server(duplex=0).boot() 



# wav = SquareTable()
# env = CosTable([(0,0), (100,1), (500,.3), (8191,0)])
# met = Metro(.125, 12).play()
# amp = TrigEnv(met, table=env, mul=.1)
# pit = TrigXnoiseMidi(met, dist='loopseg', x1=20, scale=1, mrange=(48,84))
# out = Osc(table=wav, freq=pit, mul=amp).out()

# sf = SfPlayer("sounds\\RNDYSVGE_frog_eyes.wav", speed=1, loop=True).out()