Vibrato Dataset

Vibrato Dataset is the extended version of the previous dataset. It consists of vibrato sounds for five different instruments providing different pitch ranges of notes, melodies, articulations, scales and musical techniques as staccato and legato. It includes 295 note tracks with vibratos and corresponding non vibrato tones and 49 melody and articulation tracks. Data Collection It is organized according to the source of the recordings. Sounds with vibrato and no vibrato are presented within the folders with their annotations in cvs format. All annotations except than the alto saxophone recordings include derivative analysis of pitch parameters. The reason of choosing following subsets is that all subsets are created in MTG and they are open source. The MTG violin recordings includes single notes of two octaves and four different melodies starting from different pitch are recorded in wav format sampled at 44.1 kHz. Each sound separated by semitones is recorded four times for no vibrato,slow, standard and fast rates of vibrato. Melodies were played for no vibrato and vibrato at a standard rate to have the attenuation at the end of the note. Good-sounds alto-sax recordings main feature is that it offers the quality of the vibrato sound and provides vibrato tracks of articulation, scales and staccato, legato techniques. The remaining subset offers a good variety of instruments and mostly two octave range of vibrato-non vibrato pairs. Dataset Description The database is meant for organizing the sounds in a handy way. It is organized according to the creator. In each three datasets, annotations and analysis parameters are available within the csv files and each has 11 field descriptor. Carlos_Vaquero Transverse_flute Violin Violoncello Bassoon Good-sounds-Alto sax Alto-sax MTG - Violin Violin Except than alto-sax recordings, each annotation files contain following parameters: <strong>Peak_Percentage:</strong> Percent wise proportion of peaks in first derivation of the pitch trajectory. <strong>Mean_Difference:</strong> Mean value of the differences of two consecutive peaks. <strong>Max_Difference:</strong> Maximum separation of side by side peaks. <strong>Index_Max (first one):</strong> Index value of the maximum peak in the derivative array. <strong>Location_Max (%):</strong> Location of the maximum peak in the array, percent wise. <strong>Start_End_Time (seconds):</strong> Starting and ending time instants of vibrato in the recording. <strong>Duration:</strong> Duration of the vibrato part of the recording. License All the software is distributed with the Affero GPL v3 license.# 颤音数据集（Vibrato Dataset）说明 本颤音数据集（Vibrato Dataset）为既往数据集的扩展版本，涵盖5类不同乐器的颤音音频，覆盖各类音符、旋律、演奏法、音阶及断奏（staccato）、连奏（legato）等演奏技法的不同音高区间。数据集包含295条带颤音的音符音轨及其对应无颤音音频，以及49条旋律与演奏法音轨。 ## 数据采集 数据集按照录音来源进行组织。带颤音与无颤音的音频按文件夹分类存储，并附带逗号分隔值（CSV）格式标注文件。除中音萨克斯（alto saxophone）录音外，所有标注文件均包含音高参数的导数分析。 本次选取以下子集的原因在于，所有子集均由MTG创建且开源。 MTG小提琴录音子集包含两个八度的单音，以及4首从不同音高起始的旋律，均以44.1千赫兹采样率录制为WAV格式。每个半音间距的音频分别录制4次，对应无颤音、慢颤音、标准颤音及快颤音四种模式。旋律部分分别以无颤音和标准速率颤音演奏，以实现音符结尾的音量衰减效果。 Good-sounds中音萨克斯录音子集的核心特性在于其提供高质量的颤音音频，涵盖演奏法、音阶以及断奏、连奏技法对应的颤音音轨。剩余子集则涵盖多样的乐器类型，且多数包含两个八度区间内的颤音与无颤音音频对。 ## 数据集说明 本数据库旨在以便捷的方式组织音频资源，按照创建者进行分类。在这三个子数据集中，均附带CSV格式的标注文件与分析参数，每份标注文件包含11个字段描述符。 ### 创作者分类 1. **Carlos_Vaquero**：包含长笛（Transverse_flute）、小提琴（Violin）、大提琴（Violoncello）、大管（Bassoon）四类乐器 2. **Good-sounds-Alto sax**：包含中音萨克斯（Alto-sax） 3. **MTG - Violin**：包含小提琴（Violin） 除中音萨克斯录音外，所有标注文件均包含以下参数： - **峰值占比（Peak_Percentage）**：音高轨迹一阶导数中峰值的百分比占比 - **平均差值（Mean_Difference）**：相邻两个峰值差值的平均值 - **最大差值（Max_Difference）**：相邻峰值间的最大间距 - **最大峰值索引（Index_Max，首个）**：导数数组中最大峰值的索引值 - **最大峰值位置（百分比）（Location_Max (%))**：导数数组中最大峰值的百分比位置 - **颤音起止时间（秒）（Start_End_Time (seconds))**：录音中颤音部分的起始与终止时刻 - **颤音时长（Duration）**：录音中颤音部分的持续时长 ## 许可协议 所有软件均采用Affero GPL v3许可证进行分发。