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Re: direwolf does not decode my soundfile on both PC and Raspberri PI


 

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+1 for the comment about audio bandwidth.

To me, the signal sounded "funny" when played in Audacity, and John's comment about audio bandwidth - I'd call it audio "strangling" - took me back to the sound of a SSB filter that's marginally too narrow for the (voice) frequencies involved.

Ray vk2tv

On 30/4/21 7:13 am, WB2OSZ wrote:

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I would suggest visiting Tone Control/TBW (manual page 8-2) and making the audio passband wider.? ?I don't have any scientific basis for that.? It just bothers me.? Digital filtering, which is fine for voice can really mess up signals from modems.

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Record a variety of signals from multiple stations.?? There are a lot of garbage signals out there. ???See? ? for some interesting examples.

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