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Aishell-2: Transform- ing mandarin asr research into industrial scale

Baseline reference. 67% of citing Pith papers use this work as a benchmark or comparison.

10 Pith papers citing it
Baseline 67% of classified citations
abstract

AISHELL-1 is by far the largest open-source speech corpus available for Mandarin speech recognition research. It was released with a baseline system containing solid training and testing pipelines for Mandarin ASR. In AISHELL-2, 1000 hours of clean read-speech data from iOS is published, which is free for academic usage. On top of AISHELL-2 corpus, an improved recipe is developed and released, containing key components for industrial applications, such as Chinese word segmentation, flexible vocabulary expension and phone set transformation etc. Pipelines support various state-of-the-art techniques, such as time-delayed neural networks and Lattic-Free MMI objective funciton. In addition, we also release dev and test data from other channels(Android and Mic). For research community, we hope that AISHELL-2 corpus can be a solid resource for topics like transfer learning and robust ASR. For industry, we hope AISHELL-2 recipe can be a helpful reference for building meaningful industrial systems and products.

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representative citing papers

StepAudio 2.5 Technical Report

eess.AS · 2026-05-22 · unverdicted · novelty 5.0

StepAudio 2.5 is a unified audio-language foundation model that reaches state-of-the-art results on ASR, TTS, and realtime interaction by using task-tailored RLHF on a shared backbone.

Kimi-Audio Technical Report

eess.AS · 2025-04-25 · unverdicted · novelty 5.0

Kimi-Audio is an open-source audio foundation model that achieves state-of-the-art results on speech recognition, audio understanding, question answering, and conversation after pre-training on more than 13 million hours of speech, sound, and music data.

Non-Intrusive Automatic Speech Recognition Refinement: A Survey

eess.AS · 2025-08-10 · accept · novelty 4.0

A survey that classifies non-intrusive ASR refinement methods into five categories, reviews domain adaptation and evaluation datasets, proposes standardized metrics, and identifies future research directions.

Qwen2-Audio Technical Report

eess.AS · 2024-07-15 · unverdicted · novelty 4.0

Qwen2-Audio is an open-source audio-language model that outperforms prior systems such as Gemini-1.5-pro on audio-centric instruction-following benchmarks after simplified prompt-based pre-training and expanded data.

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