MODALITY corpus - SPEAKER 10 - COMMANDS C1

The MODALITY corpus is one of the multimodal database of word recordings in English. It consists of over 30 hours of multimodal recordings. The database contains high-resolution, high-framerate stereoscopic video streams and audio signals obtained from a microphone array and a laptop microphone. The corpus can be employed to develop an AVSR system, as every utterance was labelled. Recordings in noisy conditions can be used to test the robustness of speech recognition systems. The language material was based on a remote control scenario and it includes 231 words -numbers, names of months and days, a set of verbs and nouns related to a computer device control. They were read by speakers as separated words and sequences resulting in a set of 12 recording sessions per speaker. Half of the sessions were recorded in quiet conditions, the other half contained three kinds of intrusive signals (traffic, babble and factory noise). The corpus includes recordings of 42 speakers (33 male, 9 female). The participants include 20 students and staff of Multimedia Systems Department of the Gdańsk University of Technology, 5 students of the Institute of English and American Studies of the University of Gdańsk, and 17 native English speakers. The dataset consist of recordings and visual features for SPEAKER10: sex: man native speaker: no age: 26 The test material: COMMANDS C1 All recordings for all speakers are available at http://www.modality-corpus.org/ Sample still from the corpus(SPEAKER10) Due to the size of the corpus (approx. 2.5 TB of data), every speaker’s recording was placed in a separate zip file of the size approx. 4-7 GB each. The recordings were organized according to the speakers’ language skills. The group A (17 speakers) consists of native-speakers. Non-native speakers recordings (Polish nationals) were placed in the Group B (25 speakers). The audio files use the Waveform Audio File Format (.wav), and contain a single PCM audio stream sampled at 44.1 kSa/s with 16-bit depth. The video files utilize the Matroska Multimedia Container Format (.mkv) in which a video stream in 1080p resolution, captured at 100 fps was placed after being compressed with h.265 codec (using High 4:4:4 profile). The ‘.lab’ files are text files containing the information on word positions in audio files, and follow the HTK label format. Each line of a ‘.lab’ file contains the actual label preceded by start and end times (in 100 ns units) e.g. : 1239620000 1244790000 FIVE which denotes the word “five”, occurring between the 123.962 s and 124.479 s of audio.Word-accurate SNR values calculated for every recording are also included in the ZIP file.MODALITY语料库（MODALITY Corpus）是一款英语单词录制类多模态数据库。该语料库包含超过30小时的多模态录制内容，其数据源自麦克风阵列与笔记本电脑麦克风采集的高分辨率、高帧率立体视频流及音频信号。 由于每条语音话语均已完成标注，该语料库可用于开发视听语音识别（Audio-Visual Speech Recognition, AVSR）系统；带噪环境下的录制片段则可用于测试语音识别系统的鲁棒性。 该语料库的语言素材基于遥控器操控场景，涵盖231个单词，包括数字、月份与星期名称，以及一组与计算机设备操控相关的动词和名词。录制时，说话者以单个单词或单词序列的形式进行朗读，每位说话者对应12次录制会话。其中6次会话在安静环境下采集，剩余6次会话则混入了三类干扰信号：交通噪声、人声混叠噪声与工厂环境噪声。 该语料库共包含42位说话者的录制数据，其中男性33名，女性9名。参与者构成如下：格但斯克理工大学多媒体系统系的20名学生与教职员工、格但斯克大学英美研究学院的5名学生，以及17名英语母语使用者。 本次数据集包含SPEAKER10的录制内容与视觉特征，其信息为：性别为男性，非英语母语使用者，年龄26岁。测试素材为命令集C1。所有说话者的录制内容均可通过http://www.modality-corpus.org/获取，附语料库中SPEAKER10的采样静帧。 由于该语料库总数据量约2.5 TB，每位说话者的录制内容均被打包为独立的ZIP压缩文件，单个文件大小约4~7 GB。录制内容按照说话者的语言能力分为两组：A组共17位说话者，均为英语母语使用者；非母语使用者（均为波兰籍）的录制内容归入B组，共25位说话者。 音频文件采用波形音频文件格式（Waveform Audio File Format，.wav），包含单路脉冲编码调制（Pulse Code Modulation, PCM）音频流，采样率为44.1 kSa/s，位深度为16比特。视频文件采用Matroska多媒体容器格式（Matroska Multimedia Container Format，.mkv），其中内嵌的视频流分辨率为1080p，采集帧率为100 fps，经h.265编解码器（采用High 4:4:4配置档）压缩后存储。 .lab后缀文件为文本格式的标注文件，用于记录音频文件中单词的位置信息，遵循HTK标注格式规范。每个.lab文件的每行均包含起始时间、结束时间（单位为100纳秒）与对应的实际标注内容，例如：`1239620000 1244790000 FIVE`，表示单词“five”出现在音频的123.962秒至124.479秒区间内。每个录制片段对应的逐词信噪比（Signal-to-Noise Ratio, SNR）计算值也一并包含在对应的ZIP压缩文件中。