System Detail
AntSpeaker/MECT-B2
antspeaker-mect-b2-vb2-full-core
Submitted by: Public checkpoint
- Global position
- #3 / 23
- Scenario-macro EER
- 8.5599
- Scenario-macro minDCF
- 0.321518
- Trial-set coverage
- 26 / 26
- Scenario top-three
- 7
Publicly ranked
This result is included in the reviewed public ranking.
Model Provenance
Source and architecture
- Displayed name:
AntSpeaker/MECT-B2 - Submitted by: Public checkpoint
- Metadata: OpenSVBench model record
- Source: AntSpeaker
- Architecture: MECT-B2
- Model family: MECT
- Submitted alias:
AntSpeaker/MECT-B2 - Created at:
2026-10-19T05:05:41.317553+00:00
Training And Links
Training data and references
- Training data: VoxCeleb2 dev + VoxBlink2
- Training setup: MECT-B2 uses 80-dimensional mean-normalized log-Mel filterbanks at 16 kHz with a 25 ms window, 10 ms shift, and 20–7600 Hz band, followed by a four-stage CNN-Transformer with C=32, M=3, and Transformer width d=64. The model uses frame-level dense mixture-of-experts with four experts, weighted dense fusion, attentive statistics pooling, and a 192-dimensional projection trained with SphereFace2. The VoxCeleb2 + VoxBlink2 setting uses full training followed by large-margin fine-tuning without speed perturbation; the LMF stage uses VoxCeleb2.
- Submission mode:
full-core - Model source: Open link
- Paper: MECT: Mixture of Experts with CNN-Transformer Network for Speaker Verification
Higher-Ranked Scenarios
Scenario ranks above the global position
Show 3 supporting trial sets
- Lombard Grid Lombard: #1 on its trial-set ranking.
- VoxCeleb1-E: #1 on its trial-set ranking.
- VoxCeleb1-H: #1 on its trial-set ranking.
Lower-Ranked Scenarios
Scenario ranks below the global position
Show 3 supporting trial sets
- GSC Short: #9 on its trial-set ranking.
- GLOBE: #7 on its trial-set ranking.
- CN-Celeb Genre: #7 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 |
|---|---|---|---|---|
|
In-The-Wild Robustness
How strong the model is on unconstrained celebrity and media speech across official CN-Celeb and VoxCeleb protocols.
|
#1/23
Leader
|
Open-domain media speech
0.0000 EER from leader
|
3.7217
0.130256 minDCF
|
|
|
Aging Robustness
How stable identity representations remain across age-derived and longitudinal recording gaps.
|
#2/23
Top 3
|
Speaker aging and time gaps
0.0600 EER from leader
|
1.8517
0.056173 minDCF
|
|
|
Cross-Lingual Robustness
How well speaker identity survives enrollment-test language mismatch.
|
#3/23
Top 3
|
Language mismatch
0.9634 EER from leader
|
2.6211
0.254113 minDCF
|
|
|
Distance Robustness
How much performance changes across meeting and domestic distance mismatch.
|
#3/23
Top 3
|
Distance mismatch
2.7938 EER from leader
|
8.0506
0.332292 minDCF
|
|
|
Overlap Robustness
How well speaker identity survives light, mid, and heavy overlap in both meeting and domestic recordings.
|
#3/23
Top 3
|
Overlapping speakers
0.8968 EER from leader
|
9.0061
0.442528 minDCF
|
|
|
Short-Duration Robustness
How much performance holds up when speech evidence is limited by duration.
|
#3/23
Top 3
|
Short-duration speech
1.7773 EER from leader
|
10.8119
0.429590 minDCF
|
|
|
Accent / Dialect Robustness
How reliably the model tracks identity across accent and dialect mismatch.
|
#3/23
Top 3
|
Accent and dialect variation
3.1692 EER from leader
|
19.9909
0.569899 minDCF
|
|
|
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.
|
#4/23
Competitive
|
Noise and reverberation
0.3940 EER from leader
|
2.6540
0.087120 minDCF
|
|
|
Channel / Device Robustness
How resilient the model is to device and channel mismatch.
|
#4/23
Competitive
|
Device and channel variation
5.0898 EER from leader
|
9.0921
0.435914 minDCF
|
|
|
Speaking-Style Robustness
Whether the model can preserve identity across emotion-driven change, whispered speech, and noise-induced Lombard speaking style.
|
#5/23
Competitive
|
Speaking style shift
1.0292 EER from leader
|
2.9458
0.150257 minDCF
|
|
|
Genre-Shift Robustness
Whether performance holds when CN-Celeb enrollment and test speech come from different source genres.
|
#7/23
Competitive
|
Source-genre variation
9.1400 EER from leader
|
23.4125
0.648552 minDCF
|
Trial-Set Results
Raw ranking by trial set
Expand this section to inspect the detailed trial-set rankings.
Show
Raw ranking by trial set
Expand this section to inspect the detailed trial-set rankings.
| Trial Set | Rank | Scenarios | Trials | Score |
|---|---|---|---|---|
|
TidyVoiceX2-ASV
TidyVoiceX2-ASV
|
#3/23
|
Cross-lingual
|
200000 |
2.6211
0.254113 minDCF
|
|
HI-MIA
HI-MIA
|
#5/23
|
Short-duration
|
660000 |
3.7550
0.188360 minDCF
|
|
GSC Short
Google Speech Commands
|
#9/23
|
Short-duration
|
220000 |
8.8100
0.492470 minDCF
|
|
GLOBE
GLOBE
|
#7/23
|
Accent/dialect
|
56848 |
25.0484
0.505824 minDCF
|
|
CN-Celeb
CN-Celeb
|
#4/23
|
In-the-wild
|
3484292 |
7.0910
0.240625 minDCF
|
|
CN-Celeb Genre
CN-Celeb
|
#7/23
|
Genre shift
|
440000 |
23.4125
0.648552 minDCF
|
|
CN-Celeb Short
CN-Celeb
|
#7/23
|
Short-duration
|
546964 |
21.5288
0.637650 minDCF
|
|
VoxCeleb1-O
VoxCeleb1
|
#3/23
|
In-the-wild
|
37611 |
0.2287
0.011699 minDCF
|
|
VoxCeleb1-E
VoxCeleb1
|
#1/23
|
In-the-wild
|
579818 |
0.2901
0.016274 minDCF
|
|
VoxCeleb1-H
VoxCeleb1
|
#1/23
|
In-the-wild
|
550894 |
0.5387
0.031688 minDCF
|
|
VoxCeleb Short
VoxCeleb1
|
#1/23
|
Short-duration
|
394724 |
9.1539
0.399880 minDCF
|
|
3D-Speaker Device
3D-Speaker
|
#4/23
|
Channel/device
|
180000 |
12.5620
0.544773 minDCF
|
|
3D-Speaker Distance
3D-Speaker
|
#4/23
|
Distance
|
175163 |
12.3634
0.528588 minDCF
|
|
3D-Speaker Dialect
3D-Speaker
|
#4/23
|
Accent/dialect
|
180000 |
14.9333
0.633973 minDCF
|
|
FFSVC 2022 Cross-Channel
FFSVC 2022
|
#3/23
|
Channel/device
|
72000 |
5.6222
0.327056 minDCF
|
|
FFSVC 2022 Cross-Domain
FFSVC 2022
|
#3/23
|
Distance
|
66546 |
5.7764
0.333581 minDCF
|
|
Whisper40 Whisper
Whisper40
|
#5/23
|
Speaking style
|
17600 |
7.5625
0.354313 minDCF
|
|
Lombard Grid Lombard
Lombard Grid
|
#1/23
|
Speaking style
|
29524 |
0.0075
0.000373 minDCF
|
|
VOiCES Noise/Reverb
VOiCES
|
#4/23
|
Noise/reverb
|
55000 |
2.6540
0.087120 minDCF
|
|
CHiME-6 Domestic Far-Field
CHiME-6
|
#1/23
|
Distance
|
36487 |
6.2828
0.277510 minDCF
|
|
CHiME-6 Overlap
CHiME-6
|
#2/23
|
Overlap
|
39600 |
11.4389
0.570083 minDCF
|
|
ESD
ESD
|
#1/23
|
Speaking style
|
437408 |
1.2675
0.096087 minDCF
|
|
AliMeeting Near/Far
AliMeeting
|
#7/23
|
Distance
|
220000 |
7.7800
0.189490 minDCF
|
|
AliMeeting Overlap
AliMeeting
|
#5/23
|
Overlap
|
165000 |
6.5733
0.314973 minDCF
|
|
VoxKnesset
VoxKnesset
|
#2/23
|
Aging
|
158312 |
2.1800
0.086290 minDCF
|
|
VoxPopuli Aging
VoxPopuli
|
#3/23
|
Aging
|
146575 |
1.5235
0.026056 minDCF
|