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Messages - alinta

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Development / EMG for midisprout?
« on: July 10, 2018, 12:52:53 AM »
Hi there, is it possible to use midisprout purely as a way to gather the emg movement signal rather than gsr? What would be required to do this?


Development / Re: Battery Life
« on: July 01, 2018, 10:07:07 PM »
Hi Sam,

Sorry for bringing up such an old post but I found this while searching for info on battery life. I just had some quick questions to add to this:

In this test that you did, did you leave the Sprout running constantly over these days and nights?

Am I correct in thinking that it was at about the 4 day mark that it went into low battery mode?

Is there a way to turn of the LEDs to extend the battery life? Or a way to induce low power mode?

Are there any hazards involved in leaving the Sprout on constantly for a few days? Eg short circuiting or something?

I have a situation where I would like to leave the Sprout on for a few days, but the computer itself that it is connected to will probably be turned off for some of that time. With the computer off, would that extend the Sprout's battery life or make no difference?... Now that I think about it this is probably a silly question but I just want to make sure, sorry!

Thanks for your constant help!

Questions / Re: Question about midi data
« on: July 01, 2018, 09:53:08 PM »
this trend is showing a steady increase in 'activity' and conductivity fluctuations.

Thanks Sam! Yes I wonder why it was a steady increase - it didn't seem to be environmental factors. I'll keep looking.


Questions / Re: Using Sprout without IAC Bus?
« on: July 01, 2018, 09:49:34 PM »
I think I may just be a bit confused with how both MIDI and IAC work as I am a beginner to all of this, so forgive my slowness here!

The MidiSprout itself is attached to my computer via USB (the EMU cable). Instead of pulling it into an audio program like Ableton I'm trying to pull it into a visuals program (something called Magic Music Visuals that also takes a MIDI input). I was hoping to select the MidiSprout directly from the visuals program as a MIDI source. But the program is only reading the Sprout as an IAC source, and I have been told that this program cannot deal with IAC and that I need to select the device (being the MidiSprout) more directly.

So I figured I needed to unhook the sprout from the IAC Bus?... or does the sprout not work directly as a 'midi device'?

Again forgive me for my noobness here, I am trying to make sense lol.  :D

Questions / Using Sprout without IAC Bus?
« on: July 01, 2018, 01:43:45 AM »
Hi all,

I'm trying to connect the MIDI Sprout to a program in order to allow the Sprout to control some visuals. However for this program to take a MIDI input it seems to want to connect directly to the device itself and not IAC. But because the Sprout goes through IAC, the device itself doesn't come up as an option for MIDI input in this program. Is it possible to use the Sprout without routing it through IAC? How would I unplug it from the IAC to test it?

I am running OSX 10.10.5

Questions / Re: Question about midi data
« on: June 30, 2018, 12:03:13 AM »
Thanks Nicola. Sam: any thoughts on this pattern?


Questions / Question about midi data
« on: June 12, 2018, 08:48:10 PM »
Hi Sam and all,

Here is a link to a screenshot of some recorded midi data in Ableton Live using midisprout (I tried attaching it to this message but it keeps saying an error has occurred): http://alintakrauth.com/pic. This image is showing 7 minutes worth of recording. It wasn't until I zoomed right out that I noticed this interesting pattern that it made that you can see in the attached image. Does this mean anything in particular? I understand from previous threads that notes on the midisprout get lower as more difference in conductivity is felt (I think I have that right?) and it wraps around when required. What this screenshot shows is the signal going from the top to the bottom of the scale over and over again, at first quite quickly, and then getting slower and more detailed on the timeline as it continues to play.

Are there any insights that can be made from this? eg. Is this typical? What does it mean the plant is actually doing? Is this just one continuous (but wrapped around) signal that simply means the conductivity is getting weaker or stronger (?) with time?

PS. Similarly, I have other midi screenshots that show different plants acting very differently to this one - they look much more scattered across the octaves rather than these bands. And yet others where the plant generally produces the same signal over and over again for a sustained period of time. What does this jumpiness or lack of jumpiness all suggest about the plant's signal??

Cheers, A

Questions / Re: Running multiple electrodes into MidiSprout?
« on: March 25, 2018, 07:01:38 PM »

If you are able get activity readings from both plants at the same time, it will likely be a bit noisy ;)   Already the sprout is like a toddler mashing on a keyboard, think two toddlers mashing at the same time! 


haha that's true ;) thanks for the advice! I'll see what I can do.

Are you suggesting that other electrodes normally for EEG or similar would also work for  something like this? I'd like to know more about biofeedback in general but am still learning, so I don't know exactly what is possible at this stage.

Questions / Re: Extending biofeedback electrodes?
« on: March 23, 2018, 08:58:36 PM »
Hi again,

I'm having a little trouble with the above experiment as it works fine on wet soil outside, but once the soil dries up and is put in a jar, there's no moisture or current to be picked up (you're probably thinking 'well duh' but I'm going to force this to work somehow!). I'm thinking I need to put something else in the jar to help it along - what else can I put in there that won't go dry, but will create a current? I could grow a plant or maybe fungi (?) in there, but I am hoping for something small and perhaps human-made.

Or perhaps it needs 'grounding' somehow? Is it because the jar is glass?

Any suggestions greatly appreciated.

Hi again,

Big apologies for all the questions - it's just all pouring out of me right now! This question is about how one might use the MIDI from MidiSprout to make visuals rather than sound. Has anyone tried this, and what might be some good programs to use for this? (Mac or PC is fine, but I generally work on Mac).

I imagine TouchDesigner might be a good one but it isn't something I am super familiar with at this stage.

Another potential way to do it might be to run a program that turns the MIDI signals into keyboard presses, so that I can set up visuals in an outside program to play on keyboard presses. Does anyone have any experience with this? I found these softwares but I'm not sure if I am on the right track:



Cheers, Alinta

Questions / Running multiple electrodes into MidiSprout?
« on: March 23, 2018, 01:23:03 AM »
Hi Sam and all,

Just out of interest, is it possible to take, say, 5 sets of electrode cables and, using some kind of device, feed them all into the one Midisprout? So that you have multiple plants playing on the one Sprout?

Would this just require some kind of splitter cable? Or some other device?

Cheers, Alinta

Questions / Re: Midi Monitor not responding
« on: March 23, 2018, 01:20:00 AM »
Sometimes Midi Monitor doesn't work very well for me, there are times where it will not display any events, yet the MIDI will be working perfectly fine in my DAW. I haven't tried using the sprout with anything other than my usual DAW yet so it doesn't really matter, but it does give me a little fright now and then hah!

Questions / Extending biofeedback electrodes?
« on: March 23, 2018, 12:29:37 AM »
Hi Sam and all,

I am experimenting with my MidiSprout and I was hoping to set up an installation where one of the biofeedback electrodes (probably without pad) can fit down the neck of a thin jar and go into some soil inside the jar. The other electrode would stay outside of the jar for a human to touch (again, probably without pad since there would be multiple people touching it over time). Soil can't make noise from the Midisprout by itself, but it can if a human is touching just one of the electrodes.

I'm trying to figure out the best way of putting the electrode into the soil. I guess I could just mash it in there and see what happens, but it might not fit into the jar. I have seen these long thin needle electrodes for going under skin: https://bio-medical.com/rhythmlink-disposable-paired-13-mm-subdermal-needle-electrode-10-pairs-per-box-13mm-6-color-group-1.html and am wondering whether anyone has tried to extend the usual Midisprout electrode with some attached copper wire, for instance? By this I mean a wire that is glued/wrapped to the metal part of the original electrode itself, not actually cutting or modifying the electrode wires in any way! Do you think this is possible or would it cause a shock to the human on the other pad? I don't want to set up something that might cause a jolt.

Cheers, Alinta

Questions / Re: USB midi not responding
« on: January 14, 2018, 08:51:30 PM »
I am in the same boat. Sprout boots up but MIDI Monitor finds no 'In' device, and the MIDI to USB connector seems to say that the MIDI Out is working, but the MIDI In is not. The EMU will cost me $100 to buy and ship to me - is that usual for a MIDI cable? (I'm a newbie to this). Are there any others that will work with the Sprout? This current one that I have is the only one that I have so it is hard to confirm whether it is the problem.

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