Shared sounds 40
What this means for learners
Kumauni and Gujarati share 40 sounds — roughly 67% of Gujarati's inventory overlaps with Kumauni. Shared sounds are ones a speaker already knows from their native language and will generally produce and perceive accurately without explicit training.
The 20 sounds found only in Gujarati represent the greatest pronunciation challenge for Kumauni 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, Kumauni has 2 sounds not used in Gujarati. Native Gujarati speakers learning Kumauni 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.