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If an electric guitar have tremolo arm, floyd rose, or bigsby for doing vibrato sound. Is there anything (or tool) that can make vibrato sound in an acoustic guitar. Other than manually pullback the neck.

Thank you.

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It's worth noting that you can do a vibrato with the left hand similar to how unfretted string instrument players do it. While the vibrato depth is obviously shallower than on unfretted instruments and restricted to single non-open strings, it is still discernible on fretted nylon strings. – User8773 Apr 22 '14 at 19:10

There is indeed!

(at 1m46s)

I don't believe they're widely manufactured though, not from what I could find

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Wow, great! Never heard of one of those, brilliant! +1 – Bob Broadley Apr 19 '14 at 19:00
So, it's basically just kind of floyd rose bridge which customized? – seseorang Apr 20 '14 at 6:09

Some of the Bigsby vibs will do the job.Particularly those designed for semis. They may be kinder to an acoustic guitar because they attach to the part of the guitar where the knob is for the strap, rather than on the belly itself. Watching the above video, it was difficult to tell whether the soundboard was being moved as the arm worked, or whether it was the reflection from the moving guitar, but I guess there will be a fair bit of extra stress at the bridge, that may need to see the inside beefing up. As the Bigsby needs only fittings on the end of the guitar, it could be removed without much evidence being left. Not so with Floyd-Rose type !

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So, this one could work: ? Is there any sample video of that? – seseorang Apr 20 '14 at 9:21
Don't know about videos. There is a fixing hole at the opposite end to the hinge, but probably, with string tension, it wouldn't need screwing to the body, don't think it would make much tonal difference, either. – Tim Apr 20 '14 at 9:27
If there's hole for strap buttons, then, how about the bridge? How can it hold it? (With the B12 Bigsby) – seseorang Apr 20 '14 at 10:12
The strings go under the round section bar, then over the bridge, and tension should pull them onto the bridge. The whole thing may float a little, depending on the body/neck angle, so may need a pad under to bridge the gap between Bigsby and body. – Tim Apr 20 '14 at 10:49
So, the bigsby still need kind of Vibramate? It means make a hole on the body, right? How to avoid that? – seseorang Apr 20 '14 at 11:16
up vote 0 down vote accepted

I think that both of Alexander Troup and Tim's answer are right. Because I can't pick both as an answers, I'll put here:

There's one using bridge modification here on YouTube and you can use some Bigsby vibrato (B6 and B12) which in the website written "For large acoustic".

Well, thank you for your answers, I appreciate that.

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