Fix on-device transcription failing with non-default system region#57
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brianchiruka wants to merge 1 commit into
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Fix on-device transcription failing with non-default system region#57brianchiruka wants to merge 1 commit into
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…sion Locales like en-US-u-rg-zazzzz (English US language + South Africa region) are not recognised by Apple's Speech framework. Strip the -u-* extension before matching against supported locales so the base tag (e.g. en-US) is used for lookup. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Jun 23, 2026
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Summary
matchLocalewas callingcandidate.region?.identifierdirectly on the raw locale, so a locale likeen-US-u-rg-zazzzz(English US language + South Africa region) produced a garbled region and failed to match any supported Speech locale-u-*) from the BCP 47 identifier before matching, leaving a clean tag likeen-USthat the Speech framework recognisesRepro
System language: English (US), Region: South Africa → locale becomes
en-US-u-rg-zazzzz→ transcription fails with "On-device transcription is not available for en-US-u-rg-zazzzz"Test plan