Whistling Noise

xyl · Post by **xyl** » Fri Sep 23, 2011 2:18 pm

What's that high pitched whining noise i hear when distance casting? I don't mean the swoosh sound the rod generates but the whistling noise coming from the line. It only appears at the highest of line speeds right after i flick my wrist. If you don't know what i'm talking about, you can hear it in this clip (K. Opager casting) and there's a little bit of it in this clip too (T. Rajeff casting and no i don't mean his whistling

).

Cheers

Lasse Karlsson · Post by **Lasse Karlsson** » Fri Sep 23, 2011 2:41 pm

And here:

Kenneth Opager

My guess is the leader, but I'm looking forward to the answer

Cheers
Lasse

victor · Post by **victor** » Fri Sep 23, 2011 4:38 pm

I don't see it being the leader Lasse, my money is on the loop. I have stood down cast to some good casters many times and I have heard that sound as the loop passes me.

Mike

Marc LaMouche · Post by **Marc LaMouche** » Fri Sep 23, 2011 4:45 pm

Lasse Karlsson wrote:My guess is the leader

that's been my opinion as well. an easy way to verify this is by adding wind knots...

and then the frequency of the 'whistle' changes.
factory tapered leaders and straight mono leaders sound different than hand jobs. (knots, once again)

all of the above 'whistle' differently depending on the size and type of fluff at the end of the leader too. fascinating...

cheers,
marc

xyl · Post by **xyl** » Sat Sep 24, 2011 7:38 pm

Thanks for your input guys, and thanks for another example Lasse!
It surprises me how little we know about this. Not disappointed, just surprised. Personally i suspect that some sort of resonance is causing it but i really don't know. The leader idea sounds interesting, it's just that i don't think the leader type matters much regarding the pitch. I always seem to hear the same noise regardless of leader or fly. It is much closer to the prolonged high pitched sound in the first video than the less sustained sound in the Tim Rajeff clip (could be a recorder thing?). Maybe your ears are just better than mine Marc.

Following my intuition i'm with Mike on this one. The sound seems to come from the loop area. That doesn't exclude the leader as the cause though. Let's take a string instrument for example: The sound is created by the string but is amplified by the body. Maybe something similar is happening here?

Cheers,
Svend

Lasse Karlsson · Post by **Lasse Karlsson** » Sat Sep 24, 2011 7:47 pm

Hi Svend

Which one of the whistles in this clip is it?

Noise

Cheers
Lasse

xyl · Post by **xyl** » Sat Sep 24, 2011 8:15 pm

Huh, i don't really hear it.

Or it is very faint because of the wind and microphone position? Should appear around 14-15-16 seconds into the clip. I hear something but it sounds faint and different? Maybe that clip supports Marc's theory of different pitches?
I don't mean the shorter noise during false casting, although that might be the same thing really.

Fantastic cast btw!

Bernd · Post by **Bernd** » Mon Sep 26, 2011 8:09 am

Hi Svend,
casting with Paul I realized he has a huge "wistling" (compared to others) exactly in that moment when he moves his hands opposite to each other to achieve a very fast hauling speed.
He generates a huge speed level in that moment.
Am pretty much sure the sound happens to be there without a leader, too.
But would have to try it to be sure...
I thought it was a sound coming from the line running through the guides.
But I did not focus enough on details to be sure here.
If so we should be able to change the sounds with fresh line dressing... ?

What made me think it comes from the line thru the guides is the fact that the sounds seems to be gone as soon as the haul is finished.
The leader should not be loosing speed in that moment?

http://www.youtube.com/user/FlycastingSweden#p/a/u/2/lpSdAKkb4tA
Greets
Bernd

xyl · Post by **xyl** » Thu Oct 06, 2011 1:21 pm

Thanks Bernd,
i'm even more confused now, which is good i guess.

xyl · Post by **xyl** » Fri Oct 28, 2011 11:01 am

From another thread:

Bernd wrote:
xyl wrote:Still can't figure out where it comes from though. (Sorry for being off topic).

Try to figure out where it doesn't come from.

Good idea Bernd. Yesterday i've tried casting a DT4 without a leader which above all seems to be the quickest way to turn the line tip into fluff. This actually produced two whistling sounds (plus some spectacular supersonic booms). One clearly coming from the line tip, the other one being the one i was inquiring about. It seems to come from the loop as it never passes me, unlike the line tip noise. Strange, maybe tree moles are messing with me. :ghostface:

PS. Some shooting head fishermen are notorious for producing the whistling noise. Especially those who overpower their cast and produce spaghetti instead of a good turnover.

mattklara · Post by **mattklara** » Fri Oct 28, 2011 2:50 pm

cut off the bead chain eyed flies, fellas. no more whistling.

Doug M · Post by **Doug M** » Sat Oct 29, 2011 1:54 am

It's the tippet and/or fly approaching the speed of sound ("cracking the whip").

scotty9 · Post by **scotty9** » Sat Oct 29, 2011 12:22 pm

This is a really great clip for hearing the whistle also - http://www.youtube.com/watch?v=dyUHKUjVZGo&feature=related

I'm afraid I don't have a clue about where the whistling comes from without guessing.

xyl · Post by **xyl** » Sat Oct 29, 2011 7:54 pm

That's it. Great find Scotty!
I reckon it comes from cheering tree moles hiding behind those curtains. :p

Lasse Karlsson · Post by **Lasse Karlsson** » Sun Oct 30, 2011 8:27 am

No moles behind those curtains, we checked

Cheers
Lasse

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