# Utterance-Wise Meeting Transcription System Using Asynchronous Distributed Microphones

arXiv: https://arxiv.org/abs/2007.15868 · HTML: https://mlsanity.com/paper/2007.15868/

## Key facts

- Cited by 3 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 31 Jul 2020.

## Built on by (most cited first, 3 of 3)

- [Continuous Speech Separation with Ad Hoc Microphone Arrays](https://mlsanity.com/paper/2103.02378/) (2021)
- [Multi-Channel End-to-End Neural Diarization with Distributed Microphones](https://mlsanity.com/paper/2110.04694/) (2021)
- [LibriWASN: A Data Set for Meeting Separation, Diarization, and Recognition with Asynchronous Recording Devices](https://mlsanity.com/paper/2308.10682/) (2023)

## Abstract (arXiv)

A novel framework for meeting transcription using asynchronous microphones is proposed in this paper. It consists of audio synchronization, speaker diarization, utterance-wise speech enhancement using guided source separation, automatic speech recognition, and duplication reduction. Doing speaker diarization before speech enhancement enables the system to deal with overlapped speech without considering sampling frequency mismatch between microphones. Evaluation on our real meeting datasets showed that our framework achieved a character error rate (CER) of 28.7 % by using 11 distributed microphones, while a monaural microphone placed on the center of the table had a CER of 38.2 %. We also showed that our framework achieved CER of 21.8 %, which is only 2.1 percentage points higher than the CER in headset microphone-based transcription.