MODALITY corpus - SPEAKER 05 - 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 SPEAKER 05: sex: man native speaker: no age: 34 The test material: COMMANDS C1 All recordings for all speakers are available at http://www.modality-corpus.org/ Sample still from the corpus(SPEAKER 05) 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多模态数据库。其包含超过30小时的多模态录制数据。该数据库涵盖高分辨率、高帧率立体视频流，以及由麦克风阵列与笔记本电脑麦克风采集的音频信号。由于每条语音片段均已完成标注，该语料库可用于开发音频-视觉语音识别（Audio-Visual Speech Recognition, AVSR）系统；带噪录制场景可用于测试语音识别系统的鲁棒性。 语料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与名词。录制形式分为单个单词朗读与单词序列朗读两种，每位录制者需完成12次录制会话。其中半数会话于安静环境中录制，剩余半数会话则包含三类干扰信号：交通噪声、嘈杂人声与工厂背景噪声。 该语料库共收录42位录制者，其中男性33位，女性9位。参与者构成如下：格但斯克工业大学多媒体系统系的20名学生与教职工、格但斯克大学英美语学院的5名学生，以及17名以英语为母语的录制者。 本数据集包含录制者05号（SPEAKER 05）的录制数据与视觉特征：性别为男性，非英语母语使用者，年龄34岁。测试素材：指令集C1（COMMANDS C1）。 所有录制者的全部录制内容均可通过http://www.modality-corpus.org/ 下载获取。本语料库样帧（录制者05号）。 由于该语料库总数据量约为2.5 TB，每位录制者的录制数据均打包为独立的ZIP压缩包，单包大小约为4-7 GB。录制数据按照录制者的语言能力分为两组：A组（17人）为以英语为母语的录制者；B组（25人）为波兰籍非英语母语录制者。 音频文件采用波形音频文件格式（Waveform Audio File Format, .wav），包含单路PCM音频流，采样率为44.1千采样每秒（kSa/s），位深为16比特。视频文件采用Matroska多媒体容器格式（Matroska Multimedia Container Format, .mkv），内部封装了经h.265编解码器（采用High 4:4:4配置文件）压缩的1080p分辨率视频流，采集帧率为100帧每秒（frames per second, fps）。 .lab后缀文件为文本文件，记录了音频文件中单词的位置信息，遵循HTK标注格式（HTK label format）。每一行.lab文件内容均包含起始时间、结束时间（单位为100纳秒）以及对应的实际标注词，示例如下：1239620000 1244790000 FIVE，即表示单词"five"出现在音频的123.962秒至124.479秒区间内。每个录制文件对应的逐词信噪比（Signal-to-Noise Ratio, SNR）计算值也一并包含在ZIP压缩包中。