making of LED music box interact with music part2

Tried at least 6 old 3.5mm audio jacks finally get one which works

later i figure out that they wont work because i didn't solder them together.

actually i blink with the music i am playing!

Then start serious soldering (This is the first time soldering ever in my life)

not bad right?

After hours of trying the device finally works

Nice effect in complete darkness

making of LED music box interact with music

Trying to connect 3.5mm audio jack with Tip31

start blowing LEDsss cause of wrong resistors

Finally get the LEDs lit without burning them but still not working with Tip31

processing liabrary

music library for processing

Minim

Minim is an audio library that uses the JavaSound API, a bit of Tritonus, and Javazoom’s MP3SPI to provide an easy to use audio library for people developing in the Processing environment. The philosophy behind the API is to make integrating audio into your sketches as simple as possible while still providing a reasonable amount of flexibility for more advanced users. There are no callbacks and you do not ever need to directly manipulate sample arrays, all of the dirty work is handled for you. The download comes in two flavors: (1) just the jar files needed to use Minim and (2) a full distribution that includes the javadocs, examples, and source code. Minim is licensed under the GNU Lesser General Public License (LGPL), a copy of which is included with both distributions. Users of Minim 1.1 should peruse the Javadocs to see what’s changed (hint: not much has changed, but there are a couple of nice new things).

Minim home:http://code.compartmental.net/tools/minim/

programming language change : processing

finally i decide to use processing to make the music box light detection
it allows me to output as many sounds as i like.
and it is free to use easy to extend and use one different pc.

http://processing.org/

Music box program problem

still working on flash action script .
But found a problem , it can only support 4 music out put at the same time. My project need a lot more output for my project. so i will need to change my programming language.

material gotcha

Tip31c received

晶体管型号： TIP31C
制作材料： Si-NPN
性质： 低频或音频放大 （LF），功率放大 （L）
封装形式： 直插TO-220封装

datasheet: http://www.datasheetcatalog.org/datasheet2/0/00yr77xx8x32ksz116j6f4f6a07y.pdf

idea

I like starry night with billons of stars. Hong Kong is such a busy city. Light pollution is very serious. Light is everywhere at night. Even when I go fishing surrounded with mountains I can’t see many stars. I know that I can never see a starry sky at night in Hong Kong. So I decide to create one by myself.

I want to have a starry night. Then I think that will be great to make one with music. That inspires me to create a music box that uses light to emit sound that creates also a starry sky effect in a dark room.

The basic structure is a roll with holes. Inside the roll there will be LEDs .Then lights will go through the holes. When we roll it (there will be a handle) lights come through the holes will make an effect of starry night in a completely dark room.

Under the table there will be a web camera linked to a laptop. The web will have color detection that only detect black and white. When it detects white (there is light) it will emit the note of that position. (This will be done by action script).