Tuesday, 8 June 2010

Prototyping.....



Getting back into a bit of low end synth diy...I gave a friend the synth that I used to record "blackbox" (listen here) off my ep he was so pleased with it, it's inspired me to try and build some more stuff...I want to build not just a load of mixed oscillators but some kind of ghetto sequencer as well...no examples as yet but stay tuned!


Above is the synth I gave to my friend being put through it's paces much to other party guests amusement!

I'm building stuff using the popular CMOS range of logic chips using info from the following excellent pages....they're pretty easy to work with and give pleasing whirs, blips and glitches with minimum cost.

http://www.milkcrate.com.au/_other/sea-moss/

http://www.beavisaudio.com/Projects/CMOS_Synthesizers/

http://www.musicfromouterspace.com/analogsynth/YOUR_FIRST_SYNTH/WSG_Reborn/WEIRDSOUNDGENERATORREBORN.php

Sunday, 25 April 2010

Jornadajazz



Following on from my last post...I've been using Sunvox on the Jornada a lot this last week and it's great how well Sunvox runs on such a minimal spec'd machine (206mhz proccessor). It handles multiple samples really well. Anyway I've written this track using just the Jornada and the Boss micro br and a gameboy advance sp. I used the br to record the guitar parts, the music tech pro parts off the gba sp and also to sample my resurrected yamaha DX11. All the samples were exported out of the micro br with no effects used and loaded back into Sunvox so all the effects are Sunvox only.

I've been brave (or foolhardy!) and uploaded it to a great chipmusic site, Chipmusic.org.

Listen to and comment on it here

Friday, 16 April 2010

The dulling edge...Jornada 720 and Sunvox



I have this Jornada 720 pda from around 2001 which by modern standards is massively underpowered and has limited functionality in that it has no bluetooth, wireless etc...but there are numerous reasons why I still love it as a piece of technology. First and formost it is still the only device I have with a good sized useable qwerty keyboard that I can turn on and type into a txt or a word.doc within 5 seconds (instant boot, slight lag to boot pocket word). Its really useful when I am poking around hardware/circuit bending and want to make quick notes. It also has a magnificent battery life I still get 7 hours plus runtime from the battery (and I've got 2!) and when turned off it keeps charge for months.

In a fit of fiddly hacking about today I've got the mighty mighty Sunvox music tracker running on it. I have already got milkytracker on it which is excellent (head to this thread here if you need to know how to do this) but slightly annoyingly milky would only run in 340x240 resolution using a tiny bit of the Jornada's large screen real estate. Also I am really into Sunvox at the moment it's combination of tracker form with modular instruments and effects is a glorious combination and a credit to its creator. Find out more and get Sunvox for virtually every platform here.

To get Sunvox running on your jornada you will need 2 things. The first is to install gapi on your Jornada which is available for free here. Secondly you need to place a sunvox_config.ini file or sunvox_config.txt file in the directory you install Sunvox to. In the config file you need to put

"width 640height 240"

without the quotes of course!

Lastly...why do this? Well because I can..but also it is great to use portable tracker apps in something with both keyboard and styli input..I'm using sunvox a lot at the moment on my dell axim x50 which is great.. but for writing complex parts..like drum patterns a keyboard is a godsend. Finally finding new uses for older tech feels good and I think is important.

Post proudly typed on Jornada 720:)

Thursday, 25 March 2010

New Warm Data EP with Concretedog track



Released on 07.04.2010 is the new Warm Data EP "Data Protection". It features a track from yours truly entitled "This World". Feel free to check it out!

Concretedog - This World by warmdata

Sunday, 14 March 2010

Warm Data release DAT 017 Data Acquisition

DAT017 VIDEO PROMO from Warm Data on Vimeo.


A mighty fine video for a mighty release from the ever productive Warm Data lot (OK I know... I'm a bit biased!)

Listen to and purchase if you can from these places

peoplesmusicstore

digital-tunes

Stay tuned for DAT 018 "Data Protection" featuring one of my tracks.

/Advert

Saturday, 27 February 2010

Gameboy Camera and Windows XP






When I started getting into gameboy/chiptune stuff I took the classic beginners route of buying an old gameboy and a gameboy camera...due to the fact that the gb camera has a nifty little sequencer application within it..trippy h.

I quite quickly got interested in the images that the gb camera can take..with its low resolution and 4shade greyscale the images it produces can be quite mysterious. Combine this with the strange "trick" lenses (mirrors and panoramas etc) some strange effects can be had.

One problem quite quickly presents itself...how to transfer the images onto a computer. Many people have scanned the actual gameboy screen..which can produce good results, others have used supergameboys which allow gameboy games to be played on a snes console, you can then use a video capture device to capture images from the camera. The only commercial device that was ever marketed for connecting the gbcamera to a computer is the Mad Catz cable which connect between a parrallel port and the link port of a gameboy colour. I have found these Mad Catz cables to be pretty unreliable and indeed I couldn't get it to work on any of my older laptops that still have a parallel port...I'd also read that these cable don't work with XP....annoyed my cable sat under my desk for a year!

I then realised my desktop had a parrallel port and that it must be worth a try..eventually I got it working...reliably...BUT...you have to reinstall the Mad Catz software each time you want to have a session capturing camera images...better than nothing I suppose!

Here is how I got it working this is based on numerous forum posts and collected stuff from around the tinterweb,

Turn on your PC and hold down whatever key you need that takes you into BIOS (f2 is coommon)

In Bios find your parrallel port settings (under "advanced" tab possibly) set your Parrallel port to "EPP" and make a note of the IO Range (mine was 0378)

Save changes and boot

Download this

Install the Mad Catz software but don't run the software yet

Unzip all the contents of the Porttalk folder you downloaded into the Mad Catz folder that was created when you installed the software...this would be something like C:\Program Files\Mad Catz\Camera Link Software\

Then open a command prompt..click start, run and then type "cmd" and hit enter

In the command prompt you need to move into the directory you just placed the porttalk stuff in by typing;

CD C:\Program Files\Mad Catz\Camera Link Software\

then hit enter

then type;

AllowIO cls.exe 0x378

Note the last bit of that statement "0x378" that refers to the IO Range we noted before so change this to the value that you noted from your machines BIOS placing an x after the first digit.

Then open the Mad Catz software, it will ask you to set the range for your parrallel port so select the number that matches your IOrange again...it will then ask you to select a paint program to edit the images, you can select one or cancel this.

You should then be able to download your images.(you need to read the gb camera instructions on how this works! basically you select a image in album and print it from the gameboy)..but unfortunately I have had to go through this proccess every time I want to download images as it only works for one session...not to bad if you have one or more gb cameras full of images ..but a bit of a pain if its for just one picture!

Sunday, 24 January 2010

Replace Ram battery Resurrection...Yamaha DX11



I got given this synth a while ago (thats right for free!) in a non working state...when I turned it on it proclaimed on its little LCD "cng ram bat"..so thats what I did. I've had to do this on a couple of old bits of kit in my arsenal now and invariably when you find the ram backup battery it is soldered to the pcb via solder tags that are spot welded to the battery..no exception in this case (see pic below). It's sometimes hard to find the required battery with the solder tags welded on so most of the time a better option is to wire a small battery holder to the original pcb points that can hold a comparable battery.



So this battery is a cr2032 which is pretty common but I've still soldered in a battery holder so that in ten years time when I need to do this again I can just clip a battery in without breaking out the soldering iron. For those who may need to do this job in the future and stumble here...it's not immediately apparent where the ram battery is once you get the back off of this synth...this picture shows the board (big green tick) and the corner (green spot) where it is..you need to remove the six screws holding this board to the frame and I found I didn't have to undo all the connectors to the board just the one labelled "cnd1"..that allowed me to lift the board to a workable angle





That last pic shows how I attached a couple of short leads to the points where I'd removed the old battery and connected the new battery holder (actually one I'de scavenged from an old computer motherboard.. most of these use cr2032 to backup the bios ram in battery holders) I taped this into a little space I found so it wouldn't rattle and then put it all back together.

Then I've got nothing else done apart from playing around with it all afternoon! It's a great synth..people overlook them as they are interested in the DX7 which has 6 operators instead of the DX11's 4 but then the DX11 has 6 different waveforms available for each operator (the DX7 only has sin waves) so it's a pretty even match in my humble opinion and can with experimentation create some glorious digital fm goodness.