摘要随着各类乐器的日益普及,乐器调音的需求量也越来越大。传统的乐器调音都是由专业的调音师通过他们的个人经验来判断乐器的音准,存在主观性与精确性差的问题。设计乐器的数字调音系统,提高了调音的准确度,与此同时也大大降低了调音成本。本文基于LabVIEW软件平台实现了实现了对乐器音准的调整,针对钢琴和吉他两种乐器,设置了不同模块,简洁明了的操作面板及过程是本系统的最大特点。
本设计主要应用了虚拟仪器技术以及基于此虚拟仪器技术进而开发的LabV IEW平台对本课题进行了较为完整的设计分析。论文着重论述了乐器数字调音系统的基本原理、系统总体设计方案,并完成对了分析论证。除此之外,基于设计软件的完整而详细的设计过程也是本文一大重点。本设计主要分为钢琴、吉他调音两大部分,在两部分中分别介绍了乐器的发声原理、按键索引的方法以及发声方法。主要设计部分完成了数字调音器的基本功能,界面简单且易于操作。19950
关键词:虚拟仪器 LabVIEW 乐器调音PC声卡
毕业论文设计说明书(论文)外文摘要
Title Design of Musical Instrument Digital Mixing System based on LabVIEW
Abstract
With the increasing popularity of various musical instruments,The demand for musical instrument tuning is also more and more big .in the past, professional tuners through their personal experience of the intonation judge the musical traditional musical instrument tuning but there are some problems of subjectivity and the precise. designing digital tuning system of musical instruments improves the tuning accuracy, at the same time also greatly reduces the cost. In this paper, based on the LabVIEW software platform, musical pitch will be adjusted. According to the different musical instruments, a different set of modules will be designed. The biggest characteristic of this system are simple Operation panel and process.
This design is mainly based on the virtual instrument technology and its development platform LabVIEW, This paper mainly describes the overall scheme of the musical instrument digital tuning system design and argumentation, as well as the software design process. This design is mainly pided into two parts(piano and guitar) The paper introduced the principle of sound of musical instruments, Method of key index and Sounding method. The main part of the design completed the basic function of digital tuner and the interface is simple and easy to operate.
Keywords Virtual Instruments LabVIEW instrument tuning PC sound card
目录
1.绪论 1
1.1 本课题研究背景及意义 1
1.2 相关技术研究现状 1
1.3 论文的组织结构 2
2. 方案论证及相关技术介绍 4
2.1 系统设计基本要求 4
2.2 乐器发声原理 4
2.3 方案论证与选择 6
2.4 LabVIEW开发平台 7
3. 数字调音系统VI设计 10
3.1 VI设计基本流程 10
3.2 前面板设计 11
3.3 后面板程序框图设计 12
3.4 子VI设计 16
4. 仿真结果及调试分析 21
4.1 程序调试过程 21
4.2 检验程序 22
4.3 仿真结果分析 24
结 论 26
致谢 27
参考文献27
1. 绪论
1.1 本课题研究背景及意义
随着各类乐器的日益普及,对乐器调音的需求量也越来越大。对于乐器的初学者来说,在启蒙阶段形成良好的音准概念是非常重要的,因此需要在半年至一年的时间内对乐器的音准进行调整。对于有一定演奏水平的人来说,正确的音准是他们演奏成功的基本保证。传统专业的调音师依照个人经验判断的乐器的音高,受各种客观和主观因素的影响,会出现不可避免的偏差,但即便如此,每一个专业调音师的成本也在五百以上。这就使得各类乐器调音器应运而生,但由于各类乐器的音色、音域不尽相同,使得乐器调音器的种类繁多,成本也居高不下。为了解决这个问题,本文设计了针对钢琴和吉他两种乐器的调音系统。 基于LabVIEW的乐器数字调音系统设计:http://www.751com.cn/tongxin/lunwen_11535.html