MODALITY corpus - SPEAKER 26 - 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 26: sex: man native speaker: yes age: 46 The test material: COMMANDS C1 All recordings for all speakers are available at http://www.modality-corpus.org/ Sample still from the corpus(SPEAKER 26) 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.264 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）是英语语音录制多模态数据库之一。该语料库包含超过30小时的多模态录制内容。数据库收录高分辨率、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带有标注，该语料库可用于开发视听语音识别（Audio-Visual Speech Recognition, AVSR）系统；带噪录制内容则可用于测试语音识别系统的鲁棒性。 语料的语言内容基于遥控器操控场景，涵盖231个词语——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。录制时，说话者需单独朗读词语或按序列朗读，每位说话者对应12组录制会话。其中6组会话在安静环境下录制，剩余6组则混入三类干扰信号：交通声、嘈杂人声与工厂噪音。 本语料库共收录42位说话者的录制内容，其中男性33名，女性9名。参与者构成为：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。 本数据集包含说话者26（SPEAKER 26）的录制内容与视觉特征：性别为男性，母语使用者身份为是，年龄46岁。测试材料为指令集C1（COMMANDS C1）。所有说话者的录制内容均可通过以下链接获取：http://www.modality-corpus.org/。本语料库附带SPEAKER 26的样本帧。 由于语料库总数据量约为2.5 TB，每位说话者的录制内容均打包为独立的ZIP压缩包，单包大小约4-7 GB。录制内容按说话者语言能力分组：A组（17名说话者）为母语使用者；非母语使用者（波兰籍）归入B组（25名说话者）。 音频文件采用波形音频文件格式（Waveform Audio File Format，.wav），包含单路PCM音频流，采样率为44.1 kSa/s，位深16比特。视频文件采用Matroska多媒体容器格式（Matroska Multimedia Container Format，.mkv），其中封装了经h.264编解码器（High 4:4:4配置文件）压缩的1080p分辨率视频流，采集帧率为100 fps。 后缀为`.lab`的文件为文本文件，用于记录音频文件中词语的位置信息，遵循HTK标注格式（HTK label format）。每一行`.lab`文件内容包含起始时间、结束时间（单位为100纳秒）与实际标注词，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。压缩包中还附带了针对每条录制内容计算得到的逐词精确信噪比（Signal-to-Noise Ratio, SNR）数值。