Only in Bengali 50
What this means for learners
Bengali and Burushaski share 22 sounds — roughly 31% of Burushaski's inventory overlaps with Bengali. Shared sounds are ones a speaker already knows from their native language and will generally produce and perceive accurately without explicit training.
The 37 sounds found only in Burushaski represent the greatest pronunciation challenge for Bengali speakers. The adult brain tends to map unfamiliar sounds onto the closest native equivalent — a process that produces the characteristic "accent" of a second-language speaker. Learning to hear and produce these sounds as distinct requires focused ear training, not just repetition.
Conversely, Bengali has 50 sounds not used in Burushaski. Native Burushaski speakers learning Bengali will face the mirror-image challenge with these sounds.
Phoneme inventories from PHOIBLE. Data reflects one documented inventory per language; some variation exists across dialects and sources.