How to find out

[gurpreetgill4u]

Is there any way we could find out that we are using "ʌ" sound and not "ə" sound instead.

 

[Tdol]

You could record yourself and see what people think.

 

[Max English]

I think that recording yourself is a good idea. And then you could perhaps compare yourself to the audio files on these websites:

www.thefreedictionary.com
www.dict.cc

An example:

http://www.thefreedictionary.com/unbelievable

 

[Max English]

By the way, this isn't on the schwa, but I show several words with "ʌ" that English-learners often get wrong. It could be useful...
https://www.youtube.com/watch?v=t8DBggMs3EQ