Sound visualisation using Generic led in simulink

I am working on a project to visualize music in simulink. I'm trying to recreate the schematic presented in this video.

http://youtu.be/neJLkQngRo8?t=33s

I use : #1 From multimedia file to open .wave audio file #2 lowpass filter #3 idealized 8bit ADC #4 Convert 2D to 1D #5 Delay line #6 Unbuffer #7 Generic LED

I get this 2 errors

Error in port widths or dimensions. Output port 1 of 'licenta_LED/Unbuffer' is a [1x2048] matrix.

Error in port widths or dimensions. Input port 1 of 'licenta_LED/Generic LED' is a one dimensional vector with 1 elements.

[Zishan Quadri]

How will i get that generic led?

Answer 1

[Navan Ruthramoorthy]

This means your LED block can take only scalar inputs while you are trying to send it a vector data. Unbuffer works on channels. You will get a scalar output from unbuffer for each column of data. You have 2048 columns. Try using reshape with output set to "Column vector (2-D)" instead of converting 2-D to 1-D. Your input to delay line and unbuffer should be a column vector.

[Mike]

Thank you! it worked!

Answer 2

[mar]

Hi Mike , I am working on the same project . But I have a difficulty finding the required Low pass filter and specifying its parameters . Can you send me some information about the parameters and the blocks used.Thank you

Answer 3

[mar]

Hi again Mike..please I need your help urgent.of you can send to me info or file .

[Mike]

ok i will provide all the information tomorrow. hope it's not too late

[mar]

Thank you Mike .