IDMT-SMT-Audio-Effects Dataset

The IDMT-SMT-Audio-Effects database is a large database for automatic detection of audio effects in recordings of electric guitar and bass and related signal processing. The overall duration of the audio material is approx. 30 hours. The dataset consists of 55044 WAV files (44.1 kHz, 16bit, mono) with single recorded notes: 20592 monophonic bass notes 20592 monophonic guitar notes 13860 polyphonic guitar sounds Overall, 11 different audio effects are incorporated: feedback delay slapback delay reverb chorus flanger phaser tremolo vibrato distortion overdrive no effect (unprocessed notes/sounds) 2 different electric guitars and 2 different electric bass guitars, each with two different pick-up settings and up to three different plucking styles (finger plucked - hard, finger plucked - soft, picked) were used for recording. The notes cover the common pitch range of a 4-string bass guitar from E1 (41.2 Hz) to G3 (196.0 Hz) or the common pitch range of a 6-string electric guitar from E2 (82.4 Hz) to E5 (659.3 Hz). Effects processing was performed using a digital audio workstation and a variety of mostly freely available effect plugins. To organize the database, lists in XML format are used, which record all relevant information and are provided with the database as well as a summary of the used effect plugins and parameter settings. In addition, most of this information is also encoded in the first part of the file name of the audio files using a simple alpha-numeric encoding scheme. The second part of the file name contains unique identification numbers. This provides an option for fast and flexible structuring of the data for various purposes.IDMT-SMT-Audio-Effects 数据库是一款面向电吉他与贝斯录音及相关信号处理场景，用于自动检测其中音频效果的大型数据集。 该数据集的音频素材总时长约为30小时。 本数据集包含55044条单音录制音符的WAV文件（采样率44.1 kHz，位深16 bit，单声道），具体分类如下： 20592条单声道贝斯音符 20592条单声道吉他音符 13860条多声部吉他音色 整体涵盖11种不同的音频效果： 反馈延迟（feedback delay） slapback 延迟（slapback delay） 混响（reverb） 合唱效果（chorus） 镶边效果（flanger） 相位效果（phaser） 颤音效果（tremolo） 振音效果（vibrato） 失真效果（distortion） 过载效果（overdrive） 无效果（未处理音符/音色） 录制过程采用了2款不同的电吉他与2款不同的电贝斯，每款设备均配备两种不同的拾音器设置，且支持最多三种拨奏手法：重指弹、轻指弹以及拨片弹奏。 所收录音符覆盖了4弦贝斯吉他的常用音域范围（从E1（41.2 Hz）至G3（196.0 Hz）），或是6弦电吉他的常用音域范围（从E2（82.4 Hz）至E5（659.3 Hz））。 音频效果的处理通过数字音频工作站与多款大多可免费获取的效果插件完成。 为实现数据库的规范化组织，项目采用XML格式的列表记录所有相关信息，并随数据库一同提供所用效果插件及参数设置的汇总文档。 此外，绝大多数元数据还通过一套简易的字母数字混合编码方案嵌入音频文件的文件名前半段；文件名后半段则包含唯一识别编号。该设计可为各类应用场景下的数据快速灵活结构化提供可行途径。