Pith Number

pith:QN4MLT5L

pith:2026:QN4MLT5LSRXTZ2RTQDXEXYCQWA

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Exploring Speech Foundation Models for Speaker Diarization Across Lifespan

Anfeng Xu, Shrikanth Narayanan, Tiantian Feng

Speech diarization models trained only on adults lose accuracy on child and older-adult conversations but recover with joint multi-age training.

arxiv:2604.05201 v2 · 2026-04-06 · eess.AS

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Claims

C1strongest claim

Results show substantial performance degradation when models trained on adult-specific speech are applied to child and older-adult conversational data. Moreover, joint multi-age training across different age groups improves robustness without reducing diarization performance in canonical adult conversations, while targeted age group adaptation yields further gains in diarization performance, particularly when using the Whisper encoder.

C2weakest assumption

That observed performance differences are caused primarily by age-related acoustic domain shift rather than differences in recording quality, conversation style, or speaker count across the chosen datasets.

C3one line summary

Adult-trained speech foundation models lose diarization accuracy on child and older-adult speech, but multi-age joint training and adaptation improve robustness across the lifespan.

Cited by

2 papers in Pith

Exploring Speech Foundation Models for Speaker Diarization Across Lifespan

Receipt and verification

First computed	2026-05-20T01:05:12.526245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8378c5cfab946f3cea3380ee4be050b010bcd4dc3e35a91ec4ec0149c3ca0279

Aliases

arxiv: 2604.05201 · arxiv_version: 2604.05201v2 · doi: 10.48550/arxiv.2604.05201 · pith_short_12: QN4MLT5LSRXT · pith_short_16: QN4MLT5LSRXTZ2RT · pith_short_8: QN4MLT5L

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QN4MLT5LSRXTZ2RTQDXEXYCQWA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8378c5cfab946f3cea3380ee4be050b010bcd4dc3e35a91ec4ec0149c3ca0279

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a9ca5e5e7fc6df96206357409c8a287a6398e894cf60bf77fb03ba826b67a98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2026-04-06T21:57:21Z",
    "title_canon_sha256": "d3e4e31f8ad969b381f886ebe0f4527026e2f7d9e5ddd408a70b5a60efafdb7c"
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  "source": {
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    "kind": "arxiv",
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}