I am working on a project where Voice were required to work so like Siri, I am no expert on binary code so I need help in other method.
The Uno alone cannot do speech synthesis. At the very least you will need some external hardware.
Raspberry Pi might be your best option since supports a number of text-to-speak packages.
kennethgomad02:
I am working on a project where Voice were required to work so like Siri, I am no expert on binary code so I need help in other method.
But Siri uses voice to text not text to voice?
my bad its text-to-speech
See reply #1
The Arduino Uno alone can utter spoken words and phrases programmatically, but you usually need an external amplifier and speaker. In the case of the Arduino-compatible Pololu Orangutan, all you need is a speaker.
See the "Talkie" library. Talkie can also do limited text to speech, for example arbitrary numbers, as in this demo.