For selecting a good Voice Recognition
Hi Dipak,
I believe that when you were a good singer you should know every sound,tones and tunes when you are singing. You should know the sounds like high pitch the medium pitch and low pitch.
 Of course, not just that are the sounds you should know.Â
There's also alto, suprano and tenor.
Remember,every sound pitches can help the singers to make a nice voice tone.
For selecting a good Voice Recognition
Hello Dipak_paul,
If you want to make a software that can recognize the voice then you can use the Java platform for that thing it contain some of the libraries that can help you in making that one. But if you want to ask in general then you have to see so many things in there.
You can find out all the things related to the beat and sound in the below link all you need is to go there and read the article.
It is a really great article that can help you in getting your point.
http://www.destinationcrm.com/Articles/CRM-News/Daily-News/SoundBite-Bites-Back-43503.aspx