Tuesday, October 16, 2007

More onehander

I made another little onehander circuit today. It relies on a combination of electronic feedback and waveform sequencing to achieve quite a high degree of variety using only one parameter for real time performance control.

The sounds that can be made with this circuit are harsh but at the same time organic and the changes over time can be quite fluid in nature. This circuit represents an enormous, unexplored sonic landscape as the potentiometer control is extremely sensitive and the circuit itself appears to have some sort of memory effect (in that the previous position of the potentiometer, in certain situations, helps to determine the sound outcome of the current potentiometer position).

The list of electronic components is relatively small: a potentiometer, three resistors, five capacitors and seven low-level integrated circuits.

I am very pleased with the outcome. By replacing one of the resistors with various other resistance values, it is possible to achieve quite different results.

You can listen to some line-out recorded tracks here: http://www.milkcrate.com.au/_other/onehander/. The files in question are labeled 2.1, 2.2 and 2.3. The only difference in the circuit is the value of one of the resistors. All of the tracks have been in recorded in one pass per track. None of the tracks have been edited apart from having been normalised on a track by track basis. Note that all of the files are encoded in mono, hence relatively small file sizes.


Mycorrhiza said...

Arrghh these noise-terror sounds are too good!

misoft said...

Hey! Soooo coooool!

What is the difference between that one (more onehander) and the schematic of the first Onehander...?


Sebastian Tomczak said...

I don't know how i built this one!

I know that part of it is built with a binary divider sequencer (made of a 2 x 4040, a 4093 and a 4051) but the rest I just made up without thinking, looking for particular sounds.

I have no idea _how_ this circuit makes the sounds that it does. Various points along the path are feeding back to earlier points...