# VoiceArena 发布 Diarization Bench，12 系统同台评测

- 来源：Rohan Paul (@rohanpaul_ai)
- 发布时间：2026-09-24 01:06
- AIHOT 分数：45
- AIHOT 链接：https://aihot.news/items/cmued08r202wnrommx6j9m2fn
- 原文链接：https://x.com/rohanpaul_ai/status/2102806851968708745

## AI 摘要

VoiceArena 推出 Diarization Bench，用 139 段真实对话和统一评分规则对比 12 个说话人分离系统，NVIDIA Nemotron 3 以 14.72% DER 领先。该基准还揭示 collar 效应：同一输出在 250 ms collar 下 DER 为 4.29%，换成 0 ms 则升至 14.72%，并暴露重叠语音和说话人增多时准确率的快速下降。

## 正文

VoiceArena launched Diarization Bench to compare 12 diarization systems on the same real-world audio and scoring rules.
It exposes how quickly accuracy drops with overlap and more speakers.

STT, TTS, conversational agents, and now diarization, all on @voicearena_ai

The number that got me is the collar effect: the collar is simply the timing tolerance around a speaker change.

NVIDIA Nemotron 3 scores 4.29% DER with a 250 ms collar. Score the exact same output at 0 ms and it becomes 14.72%.

### 引用推文

> Shobhit Banga：Introducing Diarization Bench, @voicearena_ai's benchmark for who spoke when. The metric we measure is diarization error rate, or DER. It measures how much of a...