ERROR:websockets.server:Error in connection handler

[andvab]

Hi there
Aftere run the vosk server in a docker container by docker compose

Docker version 27.3.0, build e85edf8

  vosk:
    image: alphacep/kaldi-en:latest
    ports:
      - "2700:2700"

I try to connect the ws server by wscat

# wscat -c ws://0.0.0.0:2700
Connected (press CTRL+C to quit)
> qwerty
Disconnected (code: 1011, reason: "")

And after that I send an echo message the connection was closed by the error below

ERROR:websockets.server:Error in connection handler
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/websockets/server.py", line 191, in handler
await self.ws_handler(self, path)
File "/opt/vosk-server/websocket/./asr_server.py", line 69, in recognize
response, stop = await loop.run_in_executor(pool, process_chunk, rec, message)
File "/usr/lib/python3.9/concurrent/futures/thread.py", line 52, in run
result = self.fn(*self.args, **self.kwargs)
File "/opt/vosk-server/websocket/./asr_server.py", line 16, in process_chunk
elif rec.AcceptWaveform(message):
File "/usr/local/lib/python3.9/dist-packages/vosk-0.3.45-py3.9.egg/vosk/init.py", line 182, in AcceptWaveform
res = _c.vosk_recognizer_accept_waveform(self._handle, data, len(data))
TypeError: initializer for ctype 'char *' must be a bytes or list or tuple, not str

[nshmyrev]

It is not expected to work with wscat this way, try our clients instead

[andvab]

I tried to use it with an asterisk instance. The SpeechStart application completes with "Non-zero..." error and hang ups a call. And a log of a vosk server the same.
ERROR:websockets.server:Error in connection handler Traceback (most recent call last): File "/usr/lib/python3/dist-packages/websockets/server.py", line 191, in handler await self.ws_handler(self, path) File "/opt/vosk-server/websocket/./asr_server.py", line 69, in recognize response, stop = await loop.run_in_executor(pool, process_chunk, rec, message) File "/usr/lib/python3.9/concurrent/futures/thread.py", line 52, in run result = self.fn(*self.args, **self.kwargs) File "/opt/vosk-server/websocket/./asr_server.py", line 16, in process_chunk elif rec.AcceptWaveform(message): File "/usr/local/lib/python3.9/dist-packages/vosk-0.3.45-py3.9.egg/vosk/init.py", line 182, in AcceptWaveform res = _c.vosk_recognizer_accept_waveform(self._handle, data, len(data)) TypeError: initializer for ctype 'char *' must be a bytes or list or tuple, not str

When I wrote about a behavior the vosk server with the vscat command I want to say that the asterisk doesn't a cause this issue

[nshmyrev]

Try with python client first. Then try with asterisk. Do not try wscat.

The error means you send some unknown command to the server.