I received most of the parts for the spectrum analyzer and also the boards, this means i should be ready to ship them to you in a few days, but the holidays are knocking on the door, and i cant work on Christmas eve . Probably the first packages will be shipped on 3-4 January 2009. I hope you’re not upset by all these delays, it’s difficult to maintain a schedule when parts are coming from lots of different countries.
The movie shows v1.1 of the firmwire in action. Tomorow I’ll be ordering the pcbs and parts.. The final version will use bargraph LED’s for the display and it will be composed from 2 boards, the motherbord containing most of the parts and the LED board containing only the bargraphs.
In response to the high interest shown by the readers on a spectrum analyzer posted here I decided to make a new design, that will be available in shop as a kit. The movie shows just a stage in the developing process, where the filters were being tuned. The final design will be powered by an atmega64 and will have 20 bands with 20 LED’s on each band.
I am now searching for a pcb manufacturer to get a good price on manufacturing the boards, then it will all be ready.. stay tuned.
Audio spectrum analyzers have always been cool either in Winamp on your computer, or in a sound system that features it. Now you have the option of building it and including it into your soundsystem. In fact i think it would look very professional if you place it inside a nice case.
The real-time system computes the distribution of the audio signal energy to 20 specific frequency bands and displays it on a 20 × 20 LED display. The PIC30F6012A was choose to control this circuit because of its numerous functions needed in this project.