Need some help with basic examples

[dayunbao]

I'm just starting to explore supriya after spending some time with SuperCollider. So now I'm a bit confused about how to port my sclang code to Python. I've made a synthdef like this in one module:

@synthdef()
def simple_sine(frequency=440, amplitude=0.1, gate=1):
    sine = SinOsc.ar(frequency=frequency) * amplitude
    envelope = EnvGen.kr(envelope=Envelope.adsr(), gate=gate, done_action=2)
    Out.ar(bus=0, source=[sine * envelope] * 2)

Then import it into a file create a Synth out of it like so:

from supriya import Server
from synth_defs import simple_sine

def play_sine_osc():
    server = Server().boot()

    print(server)

    with server.at():
        with server.add_synthdefs(simple_sine):
            synth = server.add_synth(simple_sine)
            print(synth)
            while True:
                pass

if __name__ == '__main__':
    play_sine_osc()

If this were SuperCollider, then the synth would immediately begin playing as soon as it was created. I didn't hear anything, though. Am I doing something wrong? My OS is Linux Mint, by the way. I tried starting Jack before running the Python script, but I still didn't hear anything.

[dayunbao]

I think I've found the problem, which appears to be a bug. I'll close this and open a new discussion.