Birds make all kinds of sounds and noises. There are some that are quieter than others, but some people find even the low volume chattering of finches to be monotonous and annoying. Among the larger birds, Cockatoos and Amazons are the loudest. Conures are capable of incessant screeching, and even parakeets and lovebirds can give rise to complaints from neighbors. It doesn't talk.
Many people find the capacity for speech to be the most appealing reason for buying a parrot.
Even if you buy a bird with an outstanding reputation for talking such as an African Grey or Amazon parrot, there is no guarantee that it will ever speak. If you have your heart set on a talking bird you would be well advised to buy one that already speaks, otherwise you may be very disappointed. And besides, even the most talented of talkers needs time to learn. Birds usually don't start talking until one or two years of age. And it's true.