Plate Reverb pre EQ Issue

[Rob Flinn]

TIP : I think it is easier to tune a plate if you have the plate dimensions a ratio of 1:2. When you tune the plate you tap in the centre of each side with something like a small spanner & listen to the pitch. If you have the ratio 1:2 then your tuning is in terms of octaves since 2 of the sides will be twice the length of the other 2 sides. Each pair of opposing sides should be the same pitch, & an octave different to the pair of sides at right angles.

I see videos of people who make a plate with some random sized sheet of metal, & they say it sounds great, but if you have it tuned properly then it is a different level of great. People who support the plate with coil springs don't really get it.....

 

[dmp]

When you tune the plate you tap in the centre of each side with something like a small spanner & listen to the pitch.

What pitch (Hz) do you want it tuned to for a full size plate? Edit: added info

 

[Sounddesign84]

I have a friend that is a construction welder, I can ask him tomorrow if he can scource the plate. Im thinking if the supplier can drill the holes? I dont get a result on the amazon page thru your link, is it this one;

https://www.amazon.com/RAMBEX-Length-Stainless-Thickness-0-05mm/dp/B0D4MGR63L?th=1

I am eager to go and knock on them to listen for difference between stainless and cold. By the words of it I would prefer the shinier, again, I am not trying to achieve reverberation per se, more of an electronization effect primarily and then well the reverb is also good =)

 

[Sounddesign84]

TIP : I think it is easier to tune a plate if you have the plate dimensions a ratio of 1:2. When you tune the plate you tap in the centre of each side with something like a small spanner & listen to the pitch. If you have the ratio 1:2 then your tuning is in terms of octaves since 2 of the sides will be twice the length of the other 2 sides. Each pair of opposing sides should be the same pitch, & an octave different to the pair of sides at right angles.

I see videos of people who make a plate with some random sized sheet of metal, & they say it sounds great, but if you have it tuned properly then it is a different level of great. People who support the plate with coil springs don't really get it.....

"People who support the plate with coil springs don't really get it....." Alright, we are tuning the plate as a drum head... thank you for the 1:2 ratio.

 

[Sounddesign84]

"When you tune the plate you tap in the centre of each side with something like a small spanner & listen to the pitch"


Like if the rektangle is to squares and then you tap in the centre of each square?

Like this:

 

[dmp]

I dont get a result on the amazon page thru your link, is it this one;

Yes, that's it

I am eager to go and knock on them to listen for difference between stainless and cold. By the words of it I would prefer the shinier, again, I am not trying to achieve reverberation per se, more of an electronization effect primarily and then well the reverb is also good =)

I'm not sure what you mean because I think the plate is just giving you reverb?

 

[Sounddesign84]

What pitch (Hz) do you want it tuned to for a full size plate? Edit: added info

I dont know that yet, where can I investigate in what capacity pitches will make difference? The except is for the plate reverb famous article? =)

 

[Sounddesign84]

Yes, that's it


I'm not sure what you mean because I think the plate is just giving you reverb?

When you tap it, you can hear what tambre the plate has, so different plates will have different tambres, as

dmp​

said cold will differ from stainless.

 

[Rob Flinn]

"When you tune the plate you tap in the centre of each side with something like a small spanner & listen to the pitch"


Like if the rektangle is to squares and then you tap in the centre of each square?

Like this:

No, you tap in the middle of the 4 edges. If the plate isn't in tune the reverb tail sort of pulses. If it's in good tune it is a smoother taper.

 

[Rob Flinn]

When you tap it, you can hear what tambre the plate has, so different plates will have different tambres, as

dmp​

said cold will differ from stainless.

Stainless steel is a brighter sound than cold rolled steel. I had a large ecoplate II at one point which is stainless steel. I now have an EMT 140. The ecoplate was noticeably brighter. However one needs to take into account that if you tune the plate higher it will be brighter too.

 

[Rob Flinn]

Hello! I will build a simpler plate reverb and use a towel for damping. I wanted to use this as a frame:
https://www.witre.se/sv/wsw/mobil-k...XsD9OmEAMKOjGL5V2R8KjAt8Th3RLXTxoCPiUQAvD_BwE

Where I buy the plate, should I ask them to drill holes for me? I read somewhere that it is better to drills the holes uneven? I dont understand much of the electronics side yet but there is a speaker that vibrates the plates and then there is the transducers that pickup the sound. I will be knocking on plates shortley.

That frame is way too flimsy. PM me your email address & I can send you the ecoplate plans, which will give you a better ridea of what is required. Probably time to learn how to arc weld !

 

[Rob Flinn]

What pitch (Hz) do you want it tuned to for a full size plate? Edit: added info

I don't tune to a specific pitch. I think the fact it's in tune makes the biggest difference. Some people say tune it up until you start breaking the clips & then back it off. Since the clips are quite expensive I have never done this. I just tune it until it sounds nice to my ear.

 

[Sounddesign84]

That frame is way too flimsy. PM me your email address & I can send you the ecoplate plans, which will give you a better ridea of what is required. Probably time to learn how to arc weld !

Yes Captain.

 

[Sounddesign84]

That frame is way too flimsy. PM me your email address & I can send you the ecoplate plans, which will give you a better ridea of what is required. Probably time to learn how to arc weld !

Maybe I have a PM restriction since I am new to the forum, I cant find any PM button =/

 

[dmp]

Look at what is in the Ecoplate Technical Documents.

https://groupdiy.com/threads/ecoplate.52701/#post-672038

 

[Sounddesign84]

Look at what is in the Ecoplate Technical Documents.

https://groupdiy.com/threads/ecoplate.52701/#post-672038

Thanks!

 

[Sounddesign84]

I asked a local steelsupplier for price on 1000x500x30 and 2000x1000x50 mm in for cold and stainless and he says he does not have any in stock but he can order and he asks me what quality?

 

[RoadrunnerOZ]

I asked a local steelsupplier for price on 1000x500x30 and 2000x1000x50 mm in for cold and stainless and he says he does not have any in stock but he can order and he asks me what quality?

1000 x 500 x 30 ??? - do you mean 0.30mm - 30mm is really thick!! It would also cost a fortune and be impossible to lift - best be sure what you’re asking for.
The original Ecoplate was 2000 x 1000 x 0.6mm (79in x 39.5in x 0.024in) using either cold rolled plate steel or stainless steel sheet - likely 304 stainless. Stainless is hard to drill and weld, plain steel is easier but whichever you use you’ll need thicker corner stainless steel reinforcing plates at the lug mount points riveted to the plate, one either side, as the thin sheet will tear over time.
The clothes hanger frame you showed might bear the weight but will definitely not handle the required tension on the mounting lugs - it will just buckle and collapse - look at the frame construction drawings for the Ecoplate as posted in the link from dmp. It takes a fair bit of tension to get a plate working right.

 

[Sounddesign84]

1000 x 500 x 30 ??? - do you mean 0.30mm - 30mm is really thick!! It would also cost a fortune and be impossible to lift - best be sure what you’re asking for.
The original Ecoplate was 2000 x 1000 x 0.6mm (79in x 39.5in x 0.024in) using either cold rolled plate steel or stainless steel sheet - likely 304 stainless. Stainless is hard to drill and weld, plain steel is easier but whichever you use you’ll need thicker corner stainless steel reinforcing plates at the lug mount points riveted to the plate, one either side, as the thin sheet will tear over time.
The clothes hanger frame you showed might bear the weight but will definitely not handle the required tension on the mounting lugs - it will just buckle and collapse - look at the frame construction drawings for the Ecoplate as posted in the link from dmp. It takes a fair bit of tension to get a plate working right.

Yes Wow I wrote like wrong measurements 3 times now. Should it be 0.3 and 0.5 mm or 3mm and 5 mm?

 

[RoadrunnerOZ]

0.3mm and 0.5mm - 3mm or 5mm plate would be super heavy and not ring well. Have you looked at the Ecoplate construction drawings?