Hi,

I'm trying to use this Theremin simulation in puredata, with the use of the webcam.
I have installed everything it requires. But...when I run the python script, it gives me this error:

$ python ./webcam_synth.py
Traceback (most recent call last):
  File "/home/me/Download/webcam-theremin-main/./webcam_synth.py", line 32, in <module>
    output_socket.connect((HOST, OUTPUT_PORT))
ConnectionRefusedError: [Errno 111] Connection refused

At the beginning of the script there are these input/output:

INPUT_PORT = 6000
OUTPUT_PORT = 6001
HOST = socket.gethostname()

perhaps they need to be changed?

With lsusb, my integrated webcam should be this::

Bus 002 Device 003: ID 04f2:b483 Chicony Electronics Co., Ltd USB2.0 VGA UVC WebCam

Some advice?
[Pure Data 0.52.1 on Ubuntu 22.04]

Thank you,
a.

This is not Pd related as it concerns Python. Nevertheless, what's on line 32 in your script? The error message concerns this line where a connection you are trying to establish fails.

@alexandros said:

This is not Pd related as it concerns Python. Nevertheless, what's on line 32 in your script? The error message concerns this line where a connection you are trying to establish fails.

line 32:

output_socket.connect((HOST, OUTPUT_PORT))

webcam_synth.py

@alexandros

This is not Pd related as it concerns Python.

If I'm in the wrong section of the forum, I apologize for that.

Well, this concerns the Python script, that's why I wrote that it's not Pd related. Never mind though. What's output_socket in your code? What does it try to connect to? Did you try to print your HOST "macro"?

@alexandros said:

Well, this concerns the Python script, that's why I wrote that it's not Pd related. Never mind though. What's output_socket in your code? What does it try to connect to? Did you try to print your HOST "macro"?

I don't know anything about what you're asking me...
...I don't know Python. Anyway this code should connect the webcam with puredata, to detect movements and translate them into sounds.

a.

In the PD patch provided with the script you should have a [netreceive]. It has to be trigger in order to listen at the port the py script attempts to send to.
See [netsend] and [netreceive] help.

EDIT: for ref, the py script come from https://github.com/eoinfennessy/webcam-theremin/

I solved!
One of the initial steps was installing opencv-python:

$ pip install opencv-python==4.5.5.64

I looked for the latest version of opencv-python, which is 4.9.0.80, and tried to install that:

$ pip install opencv-python==4.9.0.80

Now it works.

a.