Thanks for your valuable reply..i am really greatful to you..

now i need to buy the librabries which contains measure frequency and amptitude from sound , bcoz our project time is goign to finish..so we decide to buy this librabry and may be added to our project and do some database operations..

so pls let me know , what are the companies provide this librabry which measure frequency,amptitude from sound(the librabry shouldbe in vb) ..

bcoz no time to spend inthis hereater..

so if u know any companty(website), pls let me know..

or otherwise can u give me some information related this,
how to find out those company??

waiting for your immideate reply...

Thanks in Advance..

with regards,