Matlab says to many Inputs calling a fucntion in app designer, even if the input is just one value.

Hello,

please help me, Im writing an app for my schoolarship.

I want to do a fuzz and a overdrive. I created a switch, which picks the right fucntion and with an aplly button, matlab should run the function and read it in as an audio, with audiorecorder.

The funtion are working fine, if im not in app designer.

[Darko Kulic]

[Darko Kulic]

Answer 1

[TADA]

The first argument in a method (that's what functions are called in object oriented programming) of an object is the object instace (i.e self in Java or this in .Net)

Writing

app.fuzz(x)

Invokes the fuzz function the same as this line would:

fuzz(app, x)

So you actually need to have two arguments in that method, where the first one is app

Java and .Net sugar-coat it and hide the passing of instance arguments behind the scenes but Matlab doesn't. It takes some getting used to, but it makes sense

[Darko Kulic]

Hello,

this helped a lot, now it runs a little bit longer, but I got a new problem.

After getting my sound threw the fuzz or overdrive function I tried to made an audioplayer file from the new data. And the matlab said, the file have to be an audiofile.

How can i make it? Because, again out of the ap designer, it works fine...

[TADA]

Whats the exact error you get?

copy all the red text (including the stack trace) from your command window and post here please

[Darko Kulic]

the copy paste is not working.... =/ i posted a screen shot....

probably firefox mac problem.....

Answer 2

[Darko Kulic]

[Darko Kulic]

Thats how I changed the code.

Thank you!!!!

[TADA]

I would stick to the app.fuzz(lin) notation to have all your method calls on the same page (more readable in my opinion), but thats semantics, so whichever notation you prefer obviously...

as for the error, it says you have to send the audiorecorder object, check what the type app.audioin1 is... I'm guessing its the actual audio data?

You have to keep an instance of the audiorecorder object as well to use in those functions

[Darko Kulic]

The app.audioin1 is the overdone audio, the input is the first audio data I recorded and read it in with uigetfile.

This file was read in in fuzz and then i want to make an audiofile of it using audiorecorder.

I dont understand what you mean with instance.

Do you think i have to make an extra fuzz output wich is only data and then read it into audiorecorder? thats what i tried to do.

[TADA]

An instance is a unit of some class.

When you careated the audiorecorder you got an instance of that class.

I think your best option is to save it as a property of your app