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directkiwi's Issues

Does not work on Pipewire

I use pipewire as my audio backend, which supports ALSA with pipewire-alsa. Using python3.11 on ArchLinux, I get this error while trying to play anything:

Traceback (most recent call last):
  File "/home/tlh/myownstuff/directcheck/kiwiclient/kiwirecorder.py", line 10, in <module>
    from kiwi import KiwiSDRStream, KiwiWorker
  File "/home/tlh/myownstuff/directcheck/kiwiclient/kiwi/__init__.py", line 8, in <module>
    from .wavreader import *
  File "/home/tlh/myownstuff/directcheck/kiwiclient/kiwi/wavreader.py", line 11, in <module>
    class KiwiIQWavReader(collections.Iterator):
                          ^^^^^^^^^^^^^^^^^^^^
AttributeError: module 'collections' has no attribute 'Iterator'

I fixed it by updating the code to use collections.abc, however, now I get yet another error, this time because of python-sounddevice.

Expression 'paInvalidSampleRate' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2050
Expression 'PaAlsaStreamComponent_InitialConfigure( &self->playback, outParams, self->primeBuffers, hwParamsPlayback, &realSr )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2724
Expression 'PaAlsaStream_Configure( stream, inputParameters, outputParameters, sampleRate, framesPerBuffer, &inputLatency, &outputLatency, &hostBufferSizeMode )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2845
Traceback (most recent call last):
  File "/home/tlh/myownstuff/directcheck/kiwiclient/kiwirecorder.py", line 15, in <module>
    stream = sounddevice.OutputStream(12000, 2048, channels=1, dtype='int16')
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/tlh/myownstuff/directcheck/.venv/lib/python3.11/site-packages/sounddevice.py", line 1494, in __init__
    _StreamBase.__init__(self, kind='output', wrap_callback='array',
  File "/home/tlh/myownstuff/directcheck/.venv/lib/python3.11/site-packages/sounddevice.py", line 898, in __init__
    _check(_lib.Pa_OpenStream(self._ptr, iparameters, oparameters,
  File "/home/tlh/myownstuff/directcheck/.venv/lib/python3.11/site-packages/sounddevice.py", line 2747, in _check
    raise PortAudioError(errormsg, err)
sounddevice.PortAudioError: Error opening OutputStream: Invalid sample rate [PaErrorCode -9997]

This seems to be a error because portaudio isn't able to find the right devices.

Client does not adjust samplerate for high rate servers

I'm not completely sure how to fix it, but directKiwi continues to run at 12000 samples / sec when connecting to servers running at 20250 samples / sec. It probably needs to pull status data from the server and use the reported sample rate.

For example, connect to the KiwiSDR at k3fef.com. Audio sounds like a "slow record" because of the rate mismatch.

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