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Author Topic: SWL audio clip cleanup  (Read 537 times)

Offline autovon

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SWL audio clip cleanup
« on: October 17, 2023, 1236 UTC »
Recently I have been listening to old shortwave audio clips found on https://shortwavearchive.com/ and also youtube.  Not surprisingly, the audio quality varies greatly.  I found a nice 40 minute RBI broadcast the other week on youtube, but a good portion of it was all but unlistenable due to adjacent channel interference in the recording.  Computer software to the rescue!  I was able to notch out the offending noise using the notch filter option in the Audacity software.  https://manual.audacityteam.org/man/notch_filter.html
Pretty easy to do actually and was done in about 10 minutes.  This might be old hat for some of you, but I figured it may be useful information for others.
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Default RX location is Wisconsin using various wire antennas. Other RX will be noted.
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