Java real time sound frequency spectrum


I need to develop an application which "listens" to music and "draws" a real time frequency spectrum. The application will actually provide input for controller to control house lightening - dancing lights.. This needs to be done in real time of course. Music will be played by a sound player (winamp or Win Media player). I guess the application should listen on a sound driver level, so that player is an independent component.

I need a code snippet in Java which extracts frequencies out of signal into some kind of programming structure. The code should be in a component form, which allows a simple usage and building an application on top of it.

You should provide:

- code that outputs frequency spectrum out of live music.

- demo code that uses the component - output can be graphical or just values written into stdout. Focus is on demonstrating the component

Code can be written by you ( in this case you need to allow free and unlimited usage of it) or can be the existing code under any of the opensource licenses. You just consult in that case and earn the provision.

Very similar project is this [url removed, login to view]

But I need to do the similar in Java. If you have the code in C++ this would somehow work as well, since I could create the JNI interface. (It will run on Win platform)

I imagine that this is a few hours project for somebody that already did something similar. For somebody developing from the scratch this project would not be the best, since budget is very limited .


Evner: Java

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Om arbejdsgiveren:
( 0 bedømmelser ) videm pri ptuju, Slovenia

Projekt ID: #959590

2 freelancers are bidding on average $200 for this job


Hi,I am confused about what is the input.

$200 USD in 15 dage
(3 bedømmelser)

Dear loyo, We are highly interested to work with you with a commitment to accomplish the task within the stipulated time. Please accept our bid. Details are in PMB. Thanks, Euphern.

$200 USD in 10 dage
(2 bedømmelser)