# The SpeakIn System for VoxCeleb Speaker Recognition Challange 2021

arXiv: https://arxiv.org/abs/2109.01989 · HTML: https://mlsanity.com/paper/2109.01989/

## Key facts

- Cited by 20 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 5 Sep 2021.

## Built on by (most cited first, 20 of 20)

- [WavLM: Large-Scale Self-Supervised Pre-Training for Full Stack Speech Processing](https://mlsanity.com/paper/2110.13900/) (2021)
- [Why does Self-Supervised Learning for Speech Recognition Benefit Speaker Recognition?](https://mlsanity.com/paper/2204.12765/) (2022)
- [ESPnet-SPK: full pipeline speaker embedding toolkit with reproducible recipes, self-supervised front-ends, and off-the-shelf models](https://mlsanity.com/paper/2401.17230/) (2024)
- [VoxSRC 2022: The Fourth VoxCeleb Speaker Recognition Challenge](https://mlsanity.com/paper/2302.10248/) (2023)
- [The VoxCeleb Speaker Recognition Challenge: A Retrospective](https://mlsanity.com/paper/2408.14886/) (2024)
- [Learning Lip-Based Audio-Visual Speaker Embeddings with AV-HuBERT](https://mlsanity.com/paper/2205.07180/) (2022)
- [The SpeakIn Speaker Verification System for Far-Field Speaker Verification Challenge 2022](https://mlsanity.com/paper/2209.11625/) (2022)
- [UNISOUND System for VoxCeleb Speaker Recognition Challenge 2023](https://mlsanity.com/paper/2308.12526/) (2023)
- [Probabilistic Spherical Discriminant Analysis: An Alternative to PLDA for length-normalized embeddings](https://mlsanity.com/paper/2203.14893/) (2022)
- [The ReturnZero System for VoxCeleb Speaker Recognition Challenge 2022](https://mlsanity.com/paper/2209.10147/) (2022)
- [DS-TDNN: Dual-stream Time-delay Neural Network with Global-aware Filter for Speaker Verification](https://mlsanity.com/paper/2303.11020/) (2023)
- [To what extent can ASV systems naturally defend against spoofing attacks?](https://mlsanity.com/paper/2406.05339/) (2024)
- [Interpolating Speaker Identities in Embedding Space for Data Expansion](https://mlsanity.com/paper/2508.19210/) (2025)
- [AMR: Adaptive Modality Routing for Multimodal Polyglot Speaker Identification](https://mlsanity.com/paper/2606.29335/) (2026)
- [The SpeakIn System Description for CNSRC2022](https://mlsanity.com/paper/2209.10846/) (2022)
- [THUEE system description for NIST 2020 SRE CTS challenge](https://mlsanity.com/paper/2210.06111/) (2022)
- [Toroidal Probabilistic Spherical Discriminant Analysis](https://mlsanity.com/paper/2210.15441/) (2022)
- [Efficient Multi-Model Fusion with Adversarial Complementary Representation Learning](https://mlsanity.com/paper/2404.15704/) (2024)
- [Memory-Efficient Training for Text-Dependent SV with Independent Pre-trained Models](https://mlsanity.com/paper/2411.10828/) (2024)
- [Geolocation-Aware Robust Spoken Language Identification](https://mlsanity.com/paper/2508.17148/) (2025)

## Abstract (arXiv)

This report describes our submission to the track 1 and track 2 of the VoxCeleb Speaker Recognition Challenge 2021 (VoxSRC 2021). Both track 1 and track 2 share the same speaker verification system, which only uses VoxCeleb2-dev as our training set. This report explores several parts, including data augmentation, network structures, domain-based large margin fine-tuning, and back-end refinement. Our system is a fusion of 9 models and achieves first place in these two tracks of VoxSRC 2021. The minDCF of our submission is 0.1034, and the corresponding EER is 1.8460%.