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| To: | [email protected] |
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| Subject: | Re: VLF: DK7FC > W1VD / K3SIW 8.27 kHz EbNaut - We don't give up! |
| From: | Paul Nicholson <[email protected]> |
| Date: | Thu, 15 Mar 2018 18:45:57 +0000 |
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It's worth a try to normalise the signal. I'll have a look at that at the weekend. It will probably have to be a two-pass script. There are several ways to do this. For example using vtwrite to split the signal file into chunks (eg -G 300), then loop over the chunks running vtfilter | vtstat to measure the level of each chunk in the band 8270 +/- 1500, then vtmix -c to apply the scaling factor. Actually, I've just thought of a one-pass solution which doesn't use vtwrite. I won't have time to try it until tomorrow evening. -- Paul Nicholson -- |
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