One clinical take · six functions

License one clinical recording —
it does the work of six datasets.

A patient names a body part or symptom in their language, then crosses to the English clinical term — in one consented take. We capture the switch, the meaning, and the structure. In the one domain where a wrong word is a safety incident.

code-switch clinical takes

languages shown

6+1

datasets per take

The economics of the clinical corpus

One clinical take does the work of six datasets.

A single consented, de-identified Bantu–English code-switch recording is not one labelled example. Captured in one continuous take, its switch point is logged as switch_ms — so the record self-segments with no manual annotation, and one take becomes the ground truth for six things frontier labs otherwise buy from six separate vendors.

Consented Take 48KHz Mono

Hear it proven live on real consented takes: Health · Tone · Numbers.

License the program, not a dataset.

Worked example · BEM · Bemba

Hear one take do the work.

The highlight swaps at the stored boundary as it plays. Play the halves separately — that's the segmentation a voice model needs. Open { } machine record to see it's real structured data, not a labelling job.

Health phrase Bemba code-switch · boundary stored

Umushishi ukula kashikilako panono elyo nomushishi ukwanguka.

means child's hair turning reddish and thin

{
  "bts_id": null,
  "iso": "bem",
  "variety_id": "BTS:VAR:0031",
  "kind": "bantu_english",
  "switch_ms": 13712,
  "duration_ms": 17665,
  "n_words": 13,
  "segments": [
    {
      "label": "bantu",
      "start_ms": 0,
      "end_ms": 13712
    },
    {
      "label": "english",
      "start_ms": 13712,
      "end_ms": 17665
    }
  ],
  "speaker": "Speaker BEM-A",
  "consent": "granted",
  "deidentified": true
}

Six functions

What one clinical take is worth.

Each of these is a dataset a lab would otherwise buy or build separately. This one take is evidence for all of them — pre-structured, consented, de-identified.

Clinical-term ground truth

The right Bantu word for the right body part or condition — homograph-safe, native-verified. Your model won't name the wrong organ.

Code-switch clinical ASR & language-ID

Natural Bantu→English at the exact clinical term, pre-labelled with the stored switch point — training + eval data for how patients and clinicians actually speak.

Bantu-accented clinical English

The English half is spoken by native Bantu speakers — accented-English clinical audio that improves ASR fairness and robustness for Bantu-accented speech.

FSI alignment target

Each Bantu clinical word decomposes into its language's own Full Syllable Inventory — the tone-bearing units a forced aligner needs, grounded where tone actually lives.

Clinical pronunciation / TTS

Consented native pronunciations keyed to clinical meaning — a clean basis for patient-facing health voice and speech synthesis.

Turnkey clinical ASR benchmark

The English segment is isolated and machine-transcribable against a gold reference — a self-grading evaluation set. No labelling vendor, no drift.

+1 · only here

Visual clinical grounding

Every concept is anchored to the interactive body figure — a concept→part→phrase grounding surface for multimodal clinical models. A seventh function no flat dataset can offer.

Function 06, proven · Google Cloud Speech-to-Text

The benchmark grades itself.

We isolated the English half of each take and gave it to a frontier ASR (Google Cloud Speech-to-Text). It drops the discourse marker, mishears the clinical term, or returns nothing. That gap is what your model must close — and the gold answer key is built in.

BEM · Bemba “means” lost

goldmeans Bleeding from the private parts, not monthly period Cloud STTMean. Bleeding from the private parts. Not monthly period.

content recall 100% · model confidence 14%

BEM · Bemba “means” lost

goldmeans Baby's soft spot on the head is swollen and bulging Cloud STTThis means baby, soft spot on the head is swollen and bulging.

content recall 100% · model confidence 84%

LOZ · Lozi “means” lost

goldmeans Stiff neck, cannot bend chin to chest Cloud STTM. Stiff neck cannot bend chin to chest.

content recall 100% · model confidence 2%

LUE · Luvale “means” lost

goldmeans Bleeding between periods Cloud STTBleeding between periods.

content recall 100% · model confidence 97%

TUM · Tumbuka “means” lost

goldmeans Chest pain when breathing or coughing Cloud STTMay use chest pain. When breathing or coughing?

content recall 100% · model confidence 64%

LOZ · Lozi “means” lost

goldmeans A small cut that will not stop bleeding Cloud STTThat will not stop bleeding.

content recall 71% · model confidence 86%

Pre-segmented, consented, de-identified. A turnkey accent-robustness eval set — no labelling vendor, no drift.

The same structure, across the Bantu world.

Different languages, same captured switch — every take auto-extracts into Bantu · English · full code-switch.

LOZ · Lozi

Health phrase Lozi code-switch · boundary stored

mbututu yesa Koni kuina, kuyema kapa kuzamaya fanako yeswanela

means child not sitting, standing, or walking at the right age

{
  "bts_id": null,
  "iso": "loz",
  "variety_id": "BTS:VAR:0340",
  "kind": "bantu_english",
  "switch_ms": 13707,
  "duration_ms": 23168,
  "n_words": 19,
  "segments": [
    {
      "label": "bantu",
      "start_ms": 0,
      "end_ms": 13707
    },
    {
      "label": "english",
      "start_ms": 13707,
      "end_ms": 23168
    }
  ],
  "speaker": "Speaker LOZ-A",
  "consent": "granted",
  "deidentified": true
}

LUE · Luvale

Health phrase Luvale code-switch · boundary stored

Kuhona kuya kusali makumbi amavulu

means cannot pass stool for many days

{
  "bts_id": null,
  "iso": "lue",
  "variety_id": "BTS:VAR:0350",
  "kind": "bantu_english",
  "switch_ms": 8913,
  "duration_ms": 40034,
  "n_words": 11,
  "segments": [
    {
      "label": "bantu",
      "start_ms": 0,
      "end_ms": 8913
    },
    {
      "label": "english",
      "start_ms": 8913,
      "end_ms": 40034
    }
  ],
  "speaker": "Speaker LUE-A",
  "consent": "granted",
  "deidentified": true
}

LUG · Ganda

Health phrase Ganda code-switch · boundary stored

Okuvaamu omusaayi mu bitundu by’ekyama ng’ennaku ez’okwezuula tezinnaba kutuuka/ ekikulukuto

means bleeding from the private parts, not monthly period

{
  "bts_id": null,
  "iso": "lug",
  "variety_id": "BTS:VAR:0351",
  "kind": "bantu_english",
  "switch_ms": 18988,
  "duration_ms": 25819,
  "n_words": 18,
  "segments": [
    {
      "label": "bantu",
      "start_ms": 0,
      "end_ms": 18988
    },
    {
      "label": "english",
      "start_ms": 18988,
      "end_ms": 25819
    }
  ],
  "speaker": "Speaker LUG-A",
  "consent": "granted",
  "deidentified": true
}

LUN · Lunda

Health phrase Lunda code-switch · boundary stored

Mwaana kukañanya kushakama, ela kweenda ampinji yiindi ya yiwahi yatelela chipimu chiindi cha kusemuka

means child not sitting, standing, or walking at the right age

{
  "bts_id": null,
  "iso": "lun",
  "variety_id": "BTS:VAR:0354",
  "kind": "bantu_english",
  "switch_ms": 19468,
  "duration_ms": 25574,
  "n_words": 24,
  "segments": [
    {
      "label": "bantu",
      "start_ms": 0,
      "end_ms": 19468
    },
    {
      "label": "english",
      "start_ms": 19468,
      "end_ms": 25574
    }
  ],
  "speaker": "Speaker LUN-A",
  "consent": "granted",
  "deidentified": true
}

Language infrastructure — not patient data.

Consented · revocable. Every contributor consents — including voice — and can withdraw; deletion-on-request is honoured.

De-identified by contract. No PHI. Speaker identity, raw audio paths and internal IDs never leave the server — clips are addressed by opaque ids.

Fairly sourced. Native speakers fairly compensated, voluntary, with grievance + withdrawal channels. It clears your safety review before you ask.

Be the lab whose health AI is actually safe in Bantu.

License the program, not a dataset — one consented clinical take, six functions, across the Bantu family.

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License one clinical recording —it does the work of six datasets.