#7

here is a good video of the back side of the board.

from what I can see, its using CD40106 (schmitt triggers) for the oscillators, with 74HC393 (counters)
Im familiar with the CD40106 as Ive been playing with the OMSynth from Bastl ( you can see how CD40106 are used here if your unfamiliar and interested , its cool stuff :slight_smile: ).

there appears to be a set of resistor/capacitors and a pot, for each note of the scaleā€¦ (R/C/P) the resistor/capacitors Id assume are for the basic tuning, then the pot will be for fine tuningā€¦

Im intrigued to know what the counters do, Iā€™m assuming something to do with the poly countā€¦ 8 ā€˜oscillatorsā€™ in the 40106, and there appears to be 1 counter for each ā€˜noteā€™ (2 on each 393)

(presumably the surface changes resistance, as you move in the note, by a known amount?!)

thoughts?

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#8

Iā€™m not experienced enough with this sort of thing to have anything to contribute. But my hope is that my desire will be common enough that Skot will end up providing some hints to us.

#9

He has said that the BOM and schematic will be open sourcedā€¦

#10

Perhaps the counters act like a clock divider to generate lower octave square waves using the overflow bits?

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#11

actually I think its just using the counter bits (Q) this could give 5 octave, so theres your 60 notes.
then the output is connected to the L & R of each ā€˜padā€™ accordingly, which act as attenuators.
so there you have your 60 notes poly in stereo.

this explains why I wasnā€™t enamoured with the sound, its a pretty basic square wave.

to use as a controller, its going to come down to how accessible the contacts on the pads areā€¦
which is a concern, since most of the trace lines are coveredā€¦and the only exposed points, are where the ICs.
I guess you could solder to the counter outputs, but that will only give you mono output.

what would be really useful is if Skot could expose the contact points on the pads, this would make life really easy.
just connected these via multiplexers to gpio on an axoloti/rPI/Bela and your good to go :slight_smile:

2 Likes
#12

Very tempted to back itā€¦ I actually love how it sounds, almost harmonium like. But funds are currently elsewhere sadly :smirk:

Also: shipping november, ugh. Wondering if it will be available after the campaignā€¦

#13

I just saw the video for this through some other channels, and one of the really intriguing things about this for me is that itā€™s also apparently pressure sensitiveā€¦ I wonder what the constraints are on that, and how itā€™s done, especially in the context of the touch thread

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#14

Yeah that and the ā€˜panā€™ is what interested me as a control surface. I think itā€™s based on the surface area of touch rather than pressure/force, but no idea how sensitive it is - the videos donā€™t show it as particular nuanced but thatā€™s doesnā€™t mean much.

Iā€™m waiting to see final schematics to see if itā€™s going to be a reasonable project for me, I fear the SOIC pads maybe too small for me to successfully solder 120 connections :wink:

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#15

I wrote an iPad app (never released) back in 2010 that was an infinite hex hive:

iPad-center-100914.jpg795Ɨ1028 137 KB

It could get a little out of control:

iPad-zoom-100914.jpg779Ɨ1030 315 KB

I think it just sent an OSC message for something else to pick up.

2 Likes
#16

WOW

that is a lot of hexagons!

#17

Yes, itā€™s unbounded, really. I think it was going to drive a granular synthesis app (just intonation, of course). For all I know, it might work if I recompile it!

#18

Got an update that the project will be open source. Preliminarily schematic here: https://drive.google.com/open?id=0B93D74RZ8bmYX2l0eWxpOWlIUjQ

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#19

cool, Skot said he was going to open source it.
this schematic is what id figured out/modelled on my OMSynth, the bit Iā€™m waiting for is to see how he connects the oscillators to the pads to get the panning, and also a physical board layout to see where all the connectors are for the pads.
hopefully heā€™ll release this soon enough.

#20

A nice stretch goal: https://www.kickstarter.com/projects/skotwiedmann/hyve-touch-synth-make-the-future-of-musical-expres/posts/1847981

2 Likes
#21

I just checked back on the status of this project. 33 hours to go, and the stretch goal (2 PCBs instead of 1) will be acheived if 3 more hyve hacker pledges are made.

#22

It looks like nine more backers are needed. Iā€™ve backed it just because it looks great and Iā€™ve wanted one since he stated making them.

#23

Thatā€™s what I thought originally, but then I saw that the is a ā€œ10 packā€ pledged which bumps the total up. Edit: just received an email confirming that the stretch goal had been met

#24

Just backed it this evening to get some boards so I mightā€™ve pushed it over the edge. Looking forward to it!

1 Like
#25

Just backed it as well, the second pcb convinced me :slight_smile: The shipping to EU is massive though, 35$ for a pcbā€¦ :\

#26

Damn it!
Iā€™m a few days late to the party :cry:
Anyone bought two or more maker kits and willing to sell one?
Preferably Europe.