This, of course, is significantly easier than English, where differently written words like "cease" and "seize" have a similar sound.
Bangla spelling, does have a spelling challenge in a different way. This is because some different letters of the Bangla alphabet are pronounced the same way in modern Bangla usage. For example, in the alphabet you will see two "naw" sounds - donte-naw ন and moddheno-naw ণ. As an example, one naw is used for কণা particle and another naw is used for কেন why.
Why do we still have two naw sounds? Well, Bangla evolved (circa 1000 AD) from Magadhi Prakrit and Pali, which in turn, developed from Sanskrit. Literary Bengali borrows many words from Classical Sanskrit, preserving spelling while adapting pronunciation to that of Bangla.
Here is a list of letters with the same sound.
|i sound||hroswo-i||ই /‘ি’|
|u sound||hroswo-u||উ /‘ু’|
It is meant for the learner, so the Bangla and the Phonetic English are available for your further study. If you want, you can copy/paste the Bangla (and/or the Phonetic English) into any other application like Mail. This would be a good way to write emails to your friends to show them your progress.
To see the phonetic scheme, mouseover the link called Mouseover QuickHelp or open the bottom panel.
Hope you find the approach useful in your quest for Bangla.