taking the input form the microphone

[Getwonder]

i m working on a project of taking sound from microphone and analysing it. so i need help to take input from the microphone. Can anybody please help me how i can do it with adding some new hardware or software.
thank you very much
gmustafa@gawab.com

[LesHammer]

LabVIEW has examples of using the microphone input - but the vi's are not in the base package. You need the full development system. If you want to see what your computer's microphone input looks like, Complete Test has a LabVIEW based product that turns your computer into an oscilloscope using the microphone input. You may download it and evaluate it for free. (It has a program trap that stops it after 90 days.) Just go to www.CompleteTest.com and follow the links to the Products page. If you do not have the full development system, you may need to download the big file with all the LabVIEW runtime engine.

Les Hammer

[JuanCarlos]

Hi,

Here is a small example to get you started. I'm using LabVIEW pro, however I believe that all of the VIs that I'm using are available in the base package.

All you need is LabVIEW and a sound card. Please take a look at it and let me know if you have any questions.

Regards,

Juan Carlos
N.I.

[Engineer137]

Juan Carlos,

This is an excellent program!  I'm in a DSP class, I did a quick google seach, found your vi, plugged in my AT 2020 condensor microphone at it worked imediately. I was so pleased, I just had to give you kudos.

[RavensFan]

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@goby wrote:

immediately. I was so pleased, I just had to give you kudos.

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If you are going to give kudo's, then actually do it by clicking on the star near his user name.  Possibly even mark his message as the solution to your problem.

[ajmartin]

Just one comment, if you are in a DSP class, it would have helped YOU a lot to attempt this on your own first, then ask questions if you got stuck.

Alan

[miki90]

Thank you so much for this! It's exactly what I needed. Can you help me deal with one problem? I need to modify your program. Here is what I need to do: for the 3 frequency ranges (which users define) a program must turn on the alarm of 3 different types, for each range. The first type of alarm is textual warning on user interface, the second is blinking of light indicator, and the third is sound alarm. The important data should be saved to log file. 

[capricorn815]

dear sir,

i am making power analyser using usb sound cards i have some problems in my vi.

1- signal did not synchronise between current and voltage taking from seperate usb sound cards.

2- Power factor did not gives accurate reading due to asynchronous waves of current and voltage.

kindly help me to make accurate measurement .

i am attachng my vi in this post please check the fault in vi.

thanks for regards.

[miki90]

First of all, I suggest you to make some subVIs in order to get your code more readable. It's too big. You have the functions for synchronising, so try with queues and/or semaphores.

[capricorn815]

dear sir,

please guide me  about synchronizing fuctions. i can not find these plugin's

thanks for regards...

ahsaniqbal

ahsaniqbal815@gmail.com