ni.com is currently undergoing scheduled maintenance.

Some services may be unavailable at this time. Please contact us for help or try again later.

LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

Audio to binary signal

I am trying to convert audio signal to binary signal of 1-D array using the attached block combination. 

0 Kudos
Message 1 of 9
(3,991 Views)

Cifer,

 

I am trying to convert audio signal to binary signal of 1-D array using the attached block combination. 

And what is the problem?

 

I simplified your VI like this:

check.png

Which kind of "binary signal" do you expect?

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
0 Kudos
Message 2 of 9
(3,984 Views)
0 Kudos
Message 3 of 9
(3,960 Views)

I am getting a dimensional array of 66147 rows and 16 columns. But I want to reduce it to 1 Dimensional array of single row and 1058352 columns.

0 Kudos
Message 4 of 9
(3,951 Views)

That's because your sound is 16bits. You can reshape it to a 1D array with a length corresponding to the product of dimensions, but I still don't see the logic behind all that.

0 Kudos
Message 5 of 9
(3,938 Views)

I want to convert it to 1D array so that the individual bits can be compared with a threshold of 0.5v to generate a BPSK signal.  

0 Kudos
Message 6 of 9
(3,936 Views)

You could help us out by Googling audio bpsk and give us a few links that describe what you are trying to do.

Bill
CLD
(Mid-Level minion.)
My support system ensures that I don't look totally incompetent.
Proud to say that I've progressed beyond knowing just enough to be dangerous. I now know enough to know that I have no clue about anything at all.
Humble author of the CLAD Nugget.
0 Kudos
Message 7 of 9
(3,926 Views)

Hi Cifer,

 

please talk with your classmate - (s)he should have already solved that problem

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
0 Kudos
Message 8 of 9
(3,919 Views)

@CIFER_92 wrote:

I want to convert it to 1D array so that the individual bits can be compared with a threshold of 0.5v to generate a BPSK signal.  


A "bit" only has two states: on or off. There is no "threshold" for a single bit. It really does not make a lot of sense.

0 Kudos
Message 9 of 9
(3,915 Views)