Build log

19 January, 2015

Update: 7/2-2015: is now updated with a small gallery of the pedal, please check it out ! 
The build itself began while I was on exchange in the Netherlands.
I found an old semi-rotten waypost in the forest next to my apartment. Then I bought a handsaw and borrowed some tools from a roommate and got to work!


Beforehand I had measured roughly the layout of the pedal so I drew up some lines on the wood. I found out that the wood was extremely tough and it thus took a long time to saw through it. 

Finally I made it through ! 


Now the real work began. I had to hollow out the piece of wood with my tools. That took such a long time. At one point a russian roommate knocked on my door to ask me if I was making a table since she heard all the noise. When I showed her what I was making, she quickly walked away. Probably thought I was mad or something, hehe! 


The hollowed out piece of wood next to the starting point. Now let's put in the hardware. 
This consists of a raspberry pi (small computer running linux), an audio interface (usb), a switch and 5 leds to display the level of wear.


After returning home to Denmark it was time for finishing the front of the pedal. 


Adding the see-through acrylic plate.


After installing the lights and the (temporary) switch.


Cleaning up the hardware and adding protective felt pads. 


Final result! 


Code update

17 January, 2015

Below you can see some data from TeString measurements.


The x-axis represent a certain string (1 = thick top string, normally tuned to E).
On the y-axis we have the TS-value.

High TS = New strings.

Can you guess which of the two are new strings and which are old?


The  top one, with a TS value of 9.43 +/- 0.14 are NEW STRINGS.
and the one with TS 9.37 +/- 0.16 are OLD STRINGS.

This means that TeString seems to work, right?!

Not quite! 
The numbers are not very different but they are different. Though if you take the uncertainties into account, these data are useless !

A comment about the worn strings; since the mean value of most of the strings are VERY alike, this means that the strings are equally worn, which makes sense, since the were put on at the same time.


What can we learn from this?

I have an idea for re-writing my code to analyse a different aspect of the spectrum, to get a better, wider range between old and new.


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