How to programmatically add a block from Audio Toolbox to Simulink?

I have added a Simulink "In File" block programmatically:

add_block('simulink/Sinks/To File',...)

How do I add a block from Audio Toolbox?

I tried

add_block('Audio Toolbox/Sources/From Multimedia File',..)

but it fails with "There is no block named 'Audio Toolbox/Sources/From Multimedia File'".

Answer 1

[Cristian Garcia Milan]

Hi,

In order to add a block you shouldn't look at the library name because its file could be named differently. This is that case.

You should point:

'dspvision/From Multimedia File'

If you want to add any block, you can check its real source by selecting it and in the command window executing

get_param(gcbh,'ReferenceBlock')

Except if the block comes from built-in, in that case you should look at the

'BlockType'

property.

Hope it helps.

[Danijel Domazet]

Thanks.

How do I open command window? Sorry. :-)

[Danijel Domazet]

I need to set some parameters for this block, "Samples per audio channel" and "Audio output data type". Is get_param(gcbh,'ReferenceBlock') going to help with that too?

[Danijel Domazet]

OK, works, it's the same Command window as for Matlab.

[Danijel Domazet]

But still the other question remains: how do I set "Samples per audio channel" and "Audio output data type"?

[Cristian Garcia Milan]

You should use get(gcbh) while you have the block that you want. You will see all its properties as simulink block. At the end, there are some parameters that you can modify. At the left you will see the property name, and at the right its value. Using

set_param(path_of_the_block,property_name,property_value)

[Danijel Domazet]

This works, thanks.

Just selecting a block in Simulink, then go back to MATLAB command line and execute:

get(gcbh)

This gives all the info about the block, including parameter names.

Nor sure why is this info not documented.