Tuesday, January 24, 2012

Stereo digital audio spectrum analyzer V4.0

This is a stereo upgrade of previous version 3.x.

These boards can be bought from http://devboardshop.com

This version has multiple changes from the previous version, like:

V 4.0A is a version with 18 Bands + Two VU meters for right and left channels.
  1. Can handle stereo signals.
  2. Display format is 18+1+1( to display 18 bands of frequencies and Left Right signal level) .
  3. USB adapter for easy upgrade.
  4. Dedicated RTC with battery back-up.
  5. Added two usart connectors to create cascade spectrum analyzers( to create large display from boards like this ).
  6. A microcontroller twice faster that previous and multiple hardware advantages that increase speed of signal processing and display rendering.
Down I posted two photos with new board design.

V 4.0B is a version with 20Bands.
A 3D presentation of Audio Spectrum Analyzer 4.0B:


long said...

i'm from viet nam
I want to buy an Audio Spectrum Analyzer V4.0 circuit of you.
I want only the output signal to be displayed rather than led.
please mail me: duong.dt7 @ gmail.com
waiting for your mail, Have a good day

Anonymous said...

The stereo version looks good! I can't wait to see a demo of it on YouTube :-)

Morgoth said...

Now it is in development stage, when strictly necessary functions and drivers will be ready I will post a video with this stereo audio spectrum analyzer.

kasun.talwatta said...

do you do the decoding using the mcu or some sort of special chip ?

Morgoth said...

All functions is processed by the mcu.
Converting, decoding, displaying and other functions.

Anonymous said...


where can i buy one ?

mer said...

i want one of this. how much is it and where can i buy it?

Richard Christensen said...

Has there been any update to this project? I have been waiting with the hopes of purchasing a board or kit or something.

Gheorghiu Iulian said...

Yes updates will be frequently and will be free.
This product can be purchased from http://devboardshop.com