System Detail

wespeaker/w2vbert2

vb2-w2vbert

Submitted by: Public checkpoint

ranked review: approved WeSpeaker W2V-BERT 2.0 + MFA W2V-BERT 2.0
Global position
#9 / 25
Scenario-macro EER
9.9604
Scenario-macro minDCF
0.360767
Trial-set coverage
26 / 26
Scenario top-three
0
Publicly ranked This result is included in the reviewed public ranking.
Model Provenance

Source and architecture

  • Displayed name: wespeaker/w2vbert2
  • Submitted by: Public checkpoint
  • Metadata: OpenSVBench model record
  • Source: WeSpeaker
  • Architecture: W2V-BERT 2.0 + MFA
  • Model family: W2V-BERT 2.0
  • Submitted alias: voxceleb_voxblink2_w2v_bert2_lora_adapterMFA_lm
  • Created at: 2026-05-29T14:24:45.970729+00:00
Training And Links

Training data and references

  • Training data: VoxCeleb2 dev + VoxBlink2
  • Training setup: W2V-BERT 2.0 speaker-verification recipe with a 24-layer ~600M Conformer frontend and 80-dimensional normalized filterbanks. The MFA backend uses all 25 hidden states with 128-dimensional Layer Adapter compression and a 256-dimensional embedding. Stage 1 freezes the pretrained frontend and trains LoRA adapters on attention query/value projections (rank 64, alpha 128) with ArcFace (margin 0.2, scale 32), 200–300-frame crops, 0.9/1.1 speed perturbation except for VoxBlink2, and MUSAN/RIR augmentation using AdamW with weight decay 1e-4. Stage 2 jointly fine-tunes the frontend and backend for four epochs with cosine decay from 1e-5 to 5e-6. Stage 3 performs large-margin fine-tuning on VoxCeleb2 only without augmentation, using 500–600-frame crops, margin 0.5, and two epochs. AS-Norm and quality-aware score calibration are applied at evaluation.
  • Score processing: None
  • Submission mode: full-core
  • Model source: Open link
  • Paper: Enhancing Speaker Verification with w2v-BERT 2.0 and Knowledge Distillation guided Structured Pruning
Higher-Ranked Scenarios

Scenario ranks above the global position

Show 3 supporting trial sets
  • VoxCeleb1-O: #1 on its trial-set ranking.
  • VoxPopuli Aging: #1 on its trial-set ranking.
  • VoxCeleb1-E: #3 on its trial-set ranking.
Lower-Ranked Scenarios

Scenario ranks below the global position

Show 3 supporting trial sets
  • FFSVC 2022 Cross-Domain: #18 on its trial-set ranking.
  • FFSVC 2022 Cross-Channel: #18 on its trial-set ranking.
  • CN-Celeb Short: #16 on its trial-set ranking.
Scenario Rankings

Full ranking across scenarios

This table shows where the model sits on each scenario, using source-balanced scenario scores and the linked trial sets as evidence.

Scenario Rank Lens Evidence Score
Noise / Reverb Robustness
How reliably the model preserves identity when room acoustics, distractor noise, and microphone placement deviate from an easier in-corpus reference condition.
#4/25 Competitive
Noise and reverberation 0.3200 EER from leader
2.5800
0.074040 minDCF
Speaking-Style Robustness
Whether the model can preserve identity across emotion-driven change, whispered speech, and noise-induced Lombard speaking style.
#6/25 Competitive
Speaking style shift 0.8728 EER from leader
2.7895
0.157223 minDCF
Aging Robustness
How stable identity representations remain across age-derived and longitudinal recording gaps.
#7/25 Competitive
Speaker aging and time gaps 0.2929 EER from leader
2.0846
0.052897 minDCF
Accent / Dialect Robustness
How reliably the model tracks identity across accent and dialect mismatch.
#7/25 Competitive
Accent and dialect variation 4.6737 EER from leader
20.4352
0.641166 minDCF
Cross-Lingual Robustness
How well speaker identity survives enrollment-test language mismatch.
#9/25 Competitive
Language mismatch 2.8100 EER from leader
4.4676
0.330255 minDCF
In-The-Wild Robustness
How strong the model is on unconstrained celebrity and media speech across official CN-Celeb and VoxCeleb protocols.
#9/25 Competitive
Open-domain media speech 2.7973 EER from leader
5.1834
0.162046 minDCF
Overlap Robustness
How well speaker identity survives light, mid, and heavy overlap in both meeting and domestic recordings.
#9/25 Competitive
Overlapping speakers 2.4467 EER from leader
10.1383
0.467346 minDCF
Short-Duration Robustness
How much performance holds up when speech evidence is limited by duration.
#9/25 Competitive
Short-duration speech 3.9199 EER from leader
12.5144
0.441680 minDCF
Distance Robustness
How much performance changes across meeting and domestic distance mismatch.
#10/25 Competitive
Distance mismatch 5.4942 EER from leader
10.1885
0.403238 minDCF
Channel / Device Robustness
How resilient the model is to device and channel mismatch.
#12/25 Competitive
Device and channel variation 9.2967 EER from leader
13.2628
0.581970 minDCF
Genre-Shift Robustness
Whether performance holds when CN-Celeb enrollment and test speech come from different source genres.
#14/25 Needs work
Source-genre variation 12.6800 EER from leader
25.9200
0.656577 minDCF
Variant Compare

Compare W2V-BERT 2.0 variants

Compare the family variants on the overall board, a Scenario, or a Trial Set.

Show
Variant Submitted by Source Training Data Training Setup Rank EER minDCF Open
w2v-bert2.0 + cc + ecapa-tdnn + astp + sf2
W2V-BERT 2.0 + MFA
JinghanPeng Contributor-provided VoxCeleb2 dev + VoxBlink2 + CnCeleb + TidyVoiceX train + 3D-Speaker train + KeSpeech SphereFace2-C Loss Function + MUSAN/RIRS augmentation #1 6.0847 0.235010 Open
W2V-BERT 2.0 + Adapter-MFA (cross-device consistency FT + weight soup)
W2V-BERT 2.0 + Adapter-MFA
ActionPower WeSpeaker Init/anchor: public wespeaker W2V-BERT 2.0 + MFA checkpoint (VoxCeleb2 dev + VoxBlink2). Fine-tuning (~40k speakers): VoxCeleb2 dev, CN-Celeb1 dev + CN-Celeb2, 3D-Speaker train, AliMeeting Train (near + far), TidyVoiceX train, Omnilingual ASR corpus, WaxalNLP, and Korean speech corpora (AI-Hub). LoRA fine-tuning + ArcFace + cross-device consistency loss (parallel multi-device recordings) + augmentation consistency + model soup with the public wespeaker checkpoint #2 7.1907 0.288926 Open
W2V-BERT 2.0 + MHFA (VoxCeleb2 + VoxBlink2)
W2V-BERT 2.0 + MHFA
pengjy WeSpeaker VoxCeleb2 dev + VoxBlink2: 111,301 speakers, 4.83M utterances. Frontend: facebook/w2v-bert-2.0 (600M). Backend: MHFA with LayerNorm (64 heads, 128-d compression, all 25 hidden states), 256-d embedding. Loss: sub-center ArcFace (K=3, s=32). #4 7.5635 0.368244 Open
Dual-LoRA W2V-BERT2-Adapter-MFA (TidyVoice)
W2V-BERT 2.0 + Adapter-MFA + Dual-LoRA
sgqt WeSpeaker VoxCeleb2 dev + VoxBlink2 + TidyVoiceX training split (3,666 speakers, approximately 262k utterances). Dual-LoRA adaptation of a frozen W2V-BERT2-Adapter-MFA speaker-verification model pre-trained on VoxCeleb2 dev and VoxBlink2. Independent speaker and language LoRA branches are injected across all 24 transformer layers, using ranks 32 and 16, respectively. A shared language-anchored discriminator with gradient reversal removes linguistic information from the speaker representation. Training uses a three-stage curriculum over three epochs, Sub-center ArcMargin loss (K=3, scale=32, margin increased from 0.2 to 0.3), AdamW, 6-second segments, and MUSAN/RIR augmentation. At inference, only the speaker branch is retained and the speaker LoRA weights can be merged into the backbone. #7 9.0606 0.342596 Open
wespeaker/w2vbert2
W2V-BERT 2.0 + MFA
Current
Public checkpoint WeSpeaker VoxCeleb2 dev + VoxBlink2 W2V-BERT 2.0 speaker-verification recipe with a 24-layer ~600M Conformer frontend and 80-dimensional normalized filterbanks. The MFA backend uses all 25 hidden states with 128-dimensional Layer Adapter compression and a 256-dimensional embedding. Stage 1 freezes the pretrained frontend and trains LoRA adapters on attention query/value projections (rank 64, alpha 128) with ArcFace (margin 0.2, scale 32), 200–300-frame crops, 0.9/1.1 speed perturbation except for VoxBlink2, and MUSAN/RIR augmentation using AdamW with weight decay 1e-4. Stage 2 jointly fine-tunes the frontend and backend for four epochs with cosine decay from 1e-5 to 5e-6. Stage 3 performs large-margin fine-tuning on VoxCeleb2 only without augmentation, using 500–600-frame crops, margin 0.5, and two epochs. AS-Norm and quality-aware score calibration are applied at evaluation. #9 9.9604 0.360767 Open
Trial-Set Results

Raw ranking by trial set

Expand this section to inspect the detailed trial-set rankings.

Show
Trial Set Rank Scenarios Trials Score
TidyVoiceX2-ASV
TidyVoiceX2-ASV
#9/25
Cross-lingual
200000
4.4676
0.330255 minDCF
HI-MIA
HI-MIA
#15/25
Short-duration
660000
7.0400
0.349597 minDCF
GSC Short
Google Speech Commands
#6/25
Short-duration
220000
6.0250
0.388025 minDCF
GLOBE
GLOBE
#3/25
Accent/dialect
56848
24.5937
0.512152 minDCF
CN-Celeb
CN-Celeb
#12/25
In-the-wild
3484292
9.9690
0.300308 minDCF
CN-Celeb Genre
CN-Celeb
#14/25
Genre shift
440000
25.9200
0.656577 minDCF
CN-Celeb Short
CN-Celeb
#16/25
Short-duration
546964
25.9130
0.658933 minDCF
VoxCeleb1-O
VoxCeleb1
#1/25
In-the-wild
37611
0.1489
0.010954 minDCF
VoxCeleb1-E
VoxCeleb1
#3/25
In-the-wild
579818
0.3146
0.018750 minDCF
VoxCeleb1-H
VoxCeleb1
#4/25
In-the-wild
550894
0.7298
0.041650 minDCF
VoxCeleb Short
VoxCeleb1
#7/25
Short-duration
394724
11.0796
0.370165 minDCF
3D-Speaker Device
3D-Speaker
#9/25
Channel/device
180000
15.3867
0.634773 minDCF
3D-Speaker Distance
3D-Speaker
#11/25
Distance
175163
16.0613
0.619447 minDCF
3D-Speaker Dialect
3D-Speaker
#8/25
Accent/dialect
180000
16.2767
0.770180 minDCF
FFSVC 2022 Cross-Channel
FFSVC 2022
#18/25
Channel/device
72000
11.1389
0.529167 minDCF
FFSVC 2022 Cross-Domain
FFSVC 2022
#18/25
Distance
66546
11.3097
0.539530 minDCF
Whisper40 Whisper
Whisper40
#6/25
Speaking style
17600
5.8125
0.291250 minDCF
Lombard Grid Lombard
Lombard Grid
#7/25
Speaking style
29524
0.0559
0.005104 minDCF
VOiCES Noise/Reverb
VOiCES
#4/25
Noise/reverb
55000
2.5800
0.074040 minDCF
CHiME-6 Domestic Far-Field
CHiME-6
#3/25
Distance
36487
6.6928
0.260295 minDCF
CHiME-6 Overlap
CHiME-6
#6/25
Overlap
39600
12.3500
0.603472 minDCF
ESD
ESD
#8/25
Speaking style
437408
2.5000
0.175313 minDCF
AliMeeting Near/Far
AliMeeting
#8/25
Distance
220000
6.6900
0.193680 minDCF
AliMeeting Overlap
AliMeeting
#12/25
Overlap
165000
7.9267
0.331220 minDCF
VoxKnesset
VoxKnesset
#7/25
Aging
158312
2.6533
0.081689 minDCF
VoxPopuli Aging
VoxPopuli
#1/25
Aging
146575
1.5159
0.024105 minDCF