With a click of a button, TextToSpeech can take words and voice index and convert them into audio

There are some voice count descriptions (You can also find this on the developer console every browser has a different voice count ): -

Microsoft David - English (United States) is available on index number 0

Microsoft Ravi - English (India) is available on index number 1

Microsoft Heera - English (India) is available on index number 2

Microsoft Mark - English (United States) is available on index number 3

Microsoft Zira - English (United States) is available on index number 4

Google Deutsch is available on index number 5

Google US English is available on index number 6

Google UK English Female is available on index number 7

Google UK English Male is available on index number 8

Google español is available on index number 9

Google español de Estados Unidos is available on index number 10

Google français is available on index number 11

Google ?????? is available on index number 12

Google Bahasa Indonesia is available on index number 13

Google italiano is available on index number 14

Google ??? is available on index number 15

Google ??? is available on index number 16

Google Nederlands is available on index number 17

Google polski is available on index number 18

Google português do Brasil is available on index number 19

Google ??????? is available on index number 20

Google ???(????) is available on index number 21

Google ??(??) is available on index number 22

Google ??(??) is available on index number 23