[SAMPLE] Nexdata | Multilingual Conversational Speech Data | 8kHz Telephone| 15,000 Hours | ...

1. Specifications
Format : 8kHz, 8bit, u-law/a-law pcm, mono channel;

Environment : quiet indoor environment, without echo;

Recording content : No preset linguistic data，dozens of topics are specified, and the speakers make dialogue under those topics while the recording is performed;

Demographics : Speakers are evenly distributed across all age groups, covering children, teenagers, middle-aged, elderly, etc.

Annotation : annotating for the transcription text, speaker identification, gender and noise symbols;

Device : Telephony recording system;

Language : 100+ Languages;

Application scenarios : speech recognition; voiceprint recognition;

Accuracy rate : the word accuracy rate is not less than 98%

2. About Nexdata
Nexdata owns off-the-shelf 200,000 hours of speech recognition data, 800TB of Annotated Imagery Data, about 2 billion pieces of Natural Language Processing (NLP) Data. These ready-to-go Machine Learning (ML) Data support instant delivery, quickly improve the accuracy of AI models. For more details, please visit us at https://www.nexdata.ai/speechRecognition?source=Datarade

搜集汇总

背景与挑战

背景概述

该数据集是一个多语言对话语音集合，包含15,000小时的8kHz电话录音，覆盖100多种语言，录制于安静室内环境，话题多样且无预设脚本。数据标注了转录文本、说话人身份、性别和噪声符号，适用于语音识别和声纹识别任务，单词准确率不低于98%。