Extraction of sensitivity information from improvised jazz playing and its presentation by picture

即兴爵士乐演奏敏感性信息的提取及其图像呈现

• 批准号: 10650391
• 负责人: HIRAI Hiroshi
• 金额: $ 0.64万
• 依托单位: KYOTO INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650391/
• 关键词: jazz; improvised playing; sensitivity information; instantaneous tone; rhythm; scale; degree of tension; degree of deviation from scale; コード進行; テンション

In these 2 years we have got results as follows :We extract sensitivity information from music primitive data for some instruments vigorously. For code instrument, continuity of sensitivity is able to be got to consider a previous datum, and instantaneous tone is got for extension of our following research. For drum instrument, we are able to separate parts for rhythm keeping and parts for sensitivity by considering kinds of drum parts, easier than as compared with the previous method. For bass instrument, instantaneous tone is easily decided as compared with the previous method using code instrument. But sensitivity information from bass is not able to be got for the constraint of our research time. For melody instrument, tension is got from degree of deviation from scale, and we represent the condition of this tension agrees with cromatic scale playing.In our proposed working plan, we can not finish next subjects within the schedule time : extraction of sensitivities from beat swing and from bass playing, conversion to picture from extracted sensitivity information, study using data of live musician, construction of interactive session system and total appraisal of our system.The main uses of distributed cost is purchases of personal computer, software of musical management, standard MIDI files and other consumption subjects, and traveling expenses for oral presentation in the society and reward for live musicians.The oral presentations of study of code instrument are performed at 1998 and 1999 IEICE (The institute of electronic, information and communication engineering in Japan) General Conference.

在这两年中，我们取得了如下成果：我们积极地从音乐原始数据中提取了一些乐器的灵敏度信息。对于码型仪器，可以考虑前一个数据得到灵敏度的连续性，并得到瞬时音调，为后续的研究提供了扩展。对于鼓类乐器，通过考虑鼓类乐器的种类，可以将节奏保持部分和灵敏度部分分离出来，比以往的方法简单。对于低音乐器，与以往使用编码乐器的方法相比，瞬时音调更容易确定。但由于研究时间的限制，无法得到低音的灵敏度信息。对于旋律乐器来说，张力是从与音阶的偏离程度得到的，我们表示这种张力的条件与旋律音阶演奏相吻合，在我们提出的工作计划中，我们无法在预定时间内完成下一个科目：从节拍摆动和低音演奏中提取灵敏度，从提取的灵敏度信息转换为图像，使用现场音乐家的数据进行研究，交互式会议系统的构建和系统的总体评价，分布式成本的主要用途是购买个人计算机、音乐管理软件、标准文件等消费科目，1998年进行了密码乐器研究的口头报告，和1999年IEICE（日本电子信息通信工程研究所）大会。