Anyone checked out this delay that they are coming out with. Should be out in the next month. http://electricdruid.net/diy-digital-delay/ Up to 4 second delay. I built his flanger which I thought was pretty good. Can go from mild to wild. I've been building a bunch of lofi pt2399 based delays for my friends in the noise scene. Might be nice to have something a little more hifi if it turns out to be. Echo splashes is a pretty cool feature as well as tap tempo
Here are the features.
0 → 4 Seconds of digital delay
12 bit/32KHz input, 16 bit/32KHz output
Delay trails (tails) on/off
Noiseless effect in/out bypass switching
Momentary/latching feature on bypass switch for "echo splashes"
Tap tempo
Tempo LED to indicate echo rate
Dry audio path is entirely analog
Delay Time, Repeats, and Delay Level controls
High and Low tone filter controls
That looks pretty damn special.
Better yet, it's a thru-hole processor. Tom's stuff is always pretty dang good.
I have the flanger in the mail, I was trying to wait off as long as possible to order the delay as well, but I just need a ca3080 for a compressor and smallbear ran out. I'll be placing an order for it quite shortly. I can't wait to try it out, or at the very least hear some demos!
I must say that the documentation is really top notch and really aimed at helping people relatively new to building stuff. It is probably also the quickest build I've ever done in a 1590bb. Thats saying a lot as flangers are normally pretty complex. I imagine the delay docs will be of similar quality
The linked site also sells the 3080.
Looks like the ultimate Boss DD-2 or DD-3 delay. Pretty cool!
mmmmmmmmmmmm.
I think I am going to have to try this out when it is available :)
The PCB and chipset is up for sale as a preorder if anyone is interested.
Couldn't resist - ordered this set and the 4-knob Flanger set. Merry Christmas to me!
I think you'll like the flanger. Can do a nice chorus to real extreme comb filtering. Can get a little noisy at extreme settings but that is to be expected. I have a friend that does a lot of experimental stuff that borrows mine often.
Also for the flanger. There isn't much space in a 1590bb for the DC jack. Use of of the Jack's that screws from the outside and doesn't take much place inside.
Just visited the electric druid website. This delay project looks super cool.
I'm definitely going to get this and the flanger after the current batch of synth projects.
I just bought the chip and board set!!! Was just checking the page to see if there was an update there and boom, link to shop page! Woo!
F*** me that is awesome. Have been using the TAPLFO for a while, can't wait to get this new chip
If you order, you might also want to snag the TAPLFO IC if you plan on doing a Tapanorator. Can help to get over the hump for free shipping.
Just got an email yesterday that mine shipped. Unfortunately I'm so busy with work that I don't know when I'll be able to build it.
Just got mine in the mail. Quick 2 day shipping to France. Wish I had some time to build it.
It's great seeing DIY-able delays that arent just a 2399/FV-1!
Hopefully he'll make a version 2 with a few options, with that much delay time you'd love a hold feature! ;D
I personally don't mind the PT designs. Yes the chip is unreliable sometimes but the FV1 is a nightmare IMO. The software sucks and there is little to no "how to" info out there. Plus the forum is a joke. This, however is VERY promising looking. From glancing at the doc it looks like he even gives you the file to burn your own chip. I'll be looking at it a bit closer tonight. Thanks for posting this!
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I personally don't mind the PT designs. Yes the chip is unreliable sometimes but the FV1 is a nightmare IMO. The software sucks and there is little to no "how to" info out there. Plus the forum is a joke. This, however is VERY promising looking. From glancing at the doc it looks like he even gives you the file to burn your own chip. I'll be looking at it a bit closer tonight. Thanks for posting this!
Sent from my iPhone using Tapatalk
Quote from: flanagan0718 on January 01, 2017, 06:33:05 PM
I personally don't mind the PT designs. Yes the chip is unreliable sometimes but the FV1 is a nightmare IMO. The software sucks and there is little to no "how to" info out there. Plus the forum is a joke. This, however is VERY promising looking. From glancing at the doc it looks like he even gives you the file to burn your own chip. I'll be looking at it a bit closer tonight. Thanks for posting this!
Have you checked out spin cad? It's a visual environment for FV-1 effects, very easy to use!
http://holycityaudio.com/spincad-designer-2/
Quote from: cloudscapes on January 01, 2017, 07:29:38 PM
Quote from: flanagan0718 on January 01, 2017, 06:33:05 PM
I personally don't mind the PT designs. Yes the chip is unreliable sometimes but the FV1 is a nightmare IMO. The software sucks and there is little to no "how to" info out there. Plus the forum is a joke. This, however is VERY promising looking. From glancing at the doc it looks like he even gives you the file to burn your own chip. I'll be looking at it a bit closer tonight. Thanks for posting this!
Have you checked out spin cad? It's a visual environment for FV-1 effects, very easy to use!
http://holycityaudio.com/spincad-designer-2/
I have, not really my cup of tea.
Sent from my iPhone using Tapatalk
Anyone built one of these yet. Mine had a ton of hiss also when bypassed. Talking with Tom from electricdruid I tried a few things that he suggested. The latest that really helped was changing some resistors. So in case anyone else has the same problem. Hope this helps
Here is what tom said.
"Ok, I've got a different fix for you.
The noise is from two sources - 12-bit quantisation noise, and DAC noise. Neither is anything I can do anything about, unfortunately. That's the price of using through-hole parts, since all the modern codecs are only available in surface-mount.
So the solution is to do what we can to improve our signal-to-noise ratio. As you say, boosting the signal helps.
My thought was to boost the signal at the pre-delay filter, and then reduce it again at the output mixer. This increases the level going through the delay line and should help the S/N. I've left the dry path alone, so the pedal should keep the same volume level when bypassed.
The modification is this:
Pre-delay filter (gives gain of x4.8 below 9.3KHz)
R3: From 12K to 5K6
R4: From 12K to 22K
R5: From 47K to 27K
Output mixer (gain of x0.212, gives matching attenuation)
R19: From 10K to 47K"
definitely want to remember these exist. Too many projects at the moment but this is definitely on the "want to build" list.
Quote from: bsoncini on January 31, 2017, 06:09:43 PM
Anyone built one of these yet. Mine had a ton of hiss also when bypassed. Talking with Tom from electricdruid I tried a few things that he suggested. The latest that really helped was changing some resistors. So in case anyone else has the same problem. Hope this helps
Here is what tom said.
"Ok, I've got a different fix for you.
The noise is from two sources - 12-bit quantisation noise, and DAC noise. Neither is anything I can do anything about, unfortunately. That's the price of using through-hole parts, since all the modern codecs are only available in surface-mount.
So the solution is to do what we can to improve our signal-to-noise ratio. As you say, boosting the signal helps.
My thought was to boost the signal at the pre-delay filter, and then reduce it again at the output mixer. This increases the level going through the delay line and should help the S/N. I've left the dry path alone, so the pedal should keep the same volume level when bypassed.
The modification is this:
Pre-delay filter (gives gain of x4.8 below 9.3KHz)
R3: From 12K to 5K6
R4: From 12K to 22K
R5: From 47K to 27K
Output mixer (gain of x0.212, gives matching attenuation)
R19: From 10K to 47K"
Thats awesome. Mine has a good bit of hiss/white noise too. I will try those fixes tonight!
Some further clarification. I asked Tom about tweaking the resistors he told me to change to try and perfect it since I socketed them. It depends on your guitar output.
According to Tom
"
Further adjustment of the values would depend on exactly what signal level your guitar puts out. The circuit can cope with around 3Vpp input, so the pre-delay filter needs to boost the incoming signal to as close to that value as possible without running it into distortion. The values I sent you give a x4.7 boost on the front and matching attenuation at the mixer, so the noise level gets shoved down to nearly a 1/5th, but the max input signal drops to 680mV."
Also. He just updated the website to show a visual of what to do. http://electricdruid.net/diy-digital-delay/
any completed builds yet?
I finished mine up the other week. When I first finished it, I had terrible white noise through the pedal. After re-flowing every joint, replacing the IC's, and still had the noise, I was pretty disappointed. I made the changes suggested, and that really, really helped the noise issue. Its not 100% yet, there is still some noise there, so I need to play with the values a little still.
(https://s6.postimg.org/iky3scsg1/1702_Electric_Druid_Digital_Delay.jpg)
thanks Dan - I presume the mods you refer to are the suggested resistor changes on the ED site for use with guitars?
Also, is the noise always present or is it in the repeats (if that makes sense)?
The noise is always there. Even with the delay off. Since there are tails the signal is not true bypass. The purpose of the resistor mod is to boost the signal above that noise before the delay and attenuate the signal after. The resistor mod definitely helps. Haven't had time to play around with the values but it can probably be better. Values depend on your guitar output.
Two thoughts occur to me... one, can we raise the guitar signal before-pic-chip, or are we all outta headroom, and two, can we insert a daughterboard with a SMD DAC after the pic?
Well the max that the pic can handle is 3v peak to peak. According to tom from electric druid, the max signal from the guitar with his resistor mods he requested is 680mv peak to peak.
With the values that tom gave me for the resistors. The noise is much better. Way less than many dirt pedals add. But I'm sure it could be tweaked a bit to be better.
As for the dac, I'm not very knowlegable with digital circuits so I'll let others chime in.
Has anyone found / recorded any demos of this? I'm interested (tap tempo delay would be nice addition), but would prefer to hear some sounds before ordering the board. :)