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dnet / pySSTV

Python classes for generating Slow-scan Television transmissions
https://pypi.python.org/pypi/PySSTV
MIT License
138 stars 27 forks source link

Playing slowly #30

Closed zeke800 closed 2 years ago

zeke800 commented 2 years ago

Hi, thank you for the great software!!

I am running the following command

python -m pysstv --mode PD180 --vox /media/pi/2655-2656/STS-1/sstv_image.jpg --keep-aspect-ratio --rate 44100 sstv_image_sts_1.wav

slowrx fails to decode the image, outputting garbage. When I listen to the wav file, it seems to be playing very slowly, at half speed or something.

Any ideas how to get this working?

Thank you!

dnet commented 2 years ago

How long is the resulting sstv_image_sts_1.wav according to your player? Can you upload that file as an attachment to this issue?

zeke800 commented 2 years ago

Thank you so much for replying! I used to run it on my raspberry pi, but now I installed it on my windows machine and it works and decodes alright. Not enough processing power I guess?

dnet commented 2 years ago

I also used this on a Raspberry Pi (and the first release of the Pi, which got even less power) so I'd guess it has more to do with the software you used to play the resulting WAV file with and the DAC (either the built-in or a USB sound device).