language detection and translation opt.; custom vocabulary for better transcription.

[beastoin]

users can choose whether to enable auto language detection & translation or not.

users can add vocabulary so the stt can learn to have a more accurate understanding of names, jargon, and terms.

how does it look:

check the app > settings > profile > language

deploy:

• deploy backend-listen https://github.com/BasedHardware/omi/actions/runs/20158459455 https://github.com/BasedHardware/omi/actions/runs/20158829710/job/57866729745 https://github.com/BasedHardware/omi/actions/runs/20159241763/job/57867922227
• deploy mobile app https://codemagic.io/app/66c95e6ec76853c447b8bcbb/build/693bb6dc6c27566d240062a7
• upgrade omi deegram (self-hosted), eta Sat, 14 Dec 2025 03:23:40 GMT upgrade deepgram to the latest models - nova-3 20251210; enable custom vocabulary #3746

updates:

• update 1: sry guys, was expecting the custom vocabulary to work in this pr btw. since we want to maximize the chance of protecting users' data, we go with dg self-hosted, which requires further steps to make the vocabulary work properly - upgrade the deepgram. my old thread relates to deepgram self-hosted: https://x.com/_thinx/status/1934066131595383204?s=20

• update 2: rolling out the deepgram self-hosted, the latest flagship models of Deepgram (nova-3 251210)

• update 3: it's ready. we are on nova-3 251210, and the custom vocab is also available. check the app +493

#3688 #3687