Only in fulfulde (NGA) 42
What this means for learners
fulfulde (NGA) and Lak share 15 sounds — roughly 22% of Lak's inventory overlaps with fulfulde (NGA). Shared sounds are ones a speaker already knows from their native language and will generally produce and perceive accurately without explicit training.
The 54 sounds found only in Lak represent the greatest pronunciation challenge for fulfulde (NGA) 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, fulfulde (NGA) has 42 sounds not used in Lak. Native Lak speakers learning fulfulde (NGA) 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.