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How to filter the mechanical clacking from DA's morse video

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mstram

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I'd like to remove as much as the "mechanical /metal clacking" as possible from
this video's audio track, leaving only the "morse tone", which is ~780hz

https://www.youtube.com/watch?v=RYhrSEERvbI

I have Audacity and Goldwave, any other program suggestions are welcome.

I tried messing with Audacity's "noise reduction" effect, and had some limited success,
but as an Audacity newbie, I'm thinking there might be better techniques ?
 

Hi,

Just use a narrow bandpass around 780Hz.

Klaus
 

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