Only in Lithuanian 57
What this means for learners
Lithuanian and Garo share 3 sounds — roughly 5% of Garo's inventory overlaps with Lithuanian. Shared sounds are ones a speaker already knows from their native language and will generally produce and perceive accurately without explicit training.
The 23 sounds found only in Garo represent the greatest pronunciation challenge for Lithuanian 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, Lithuanian has 57 sounds not used in Garo. Native Garo speakers learning Lithuanian 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.