Development of a „virtual prototype“ of a violin and its application in investigations on the audio-tactile human-instrument-interface with respect to the influence of different vibration characteristics on perception

许多关于演奏小提琴时不同知觉属性评估的研究都强调了整体多模态事件的触觉成分对乐器评级的巨大影响。然而，迄今为止，人们对感知振动信号的不同属性如何影响不同感知属性的评估知之甚少。这一关系将在本研究项目中进行系统的研究。为此，将首先开发一种新的方法，可以独立任意地修改小提琴的触觉和听觉反馈。因此，可以修改多模态事件的特定属性，而保持其他属性不变。当直接比较小提琴时，这是不可能的，因为它经常在文献中被描述。为此，将开发和实现小提琴的“虚拟原型”（vp）。这种乐器是以电小提琴为基础的，它具有传统的原声小提琴的人体工程学。它将配备一个拾音系统、一个信号处理单元、耳机和振动器。这允许真实地再现声音和振动在接触点的仪器。因此，实际的原声小提琴可以模拟或合成小提琴可以创建。除了演奏之外，这种乐器还可以作为听觉触觉回放设备使用。此外，还将开发一种测量系统，使测量声学小提琴上的传递函数成为可能，这些传递函数需要在vp上进行仿真。此外，该系统还可以用小提琴进行听觉触觉录音，通过v.p进行回放。与v.p进行互动式和非互动式感知实验。首先，在非交互模式下，将研究振动信号的不同属性如何影响感知属性的评估。因此，一开始就研究了不同频率和幅值的原始振动信号的影响。然后，将使用基于原声小提琴振动记录的更复杂的信号。在此基础上，建立了振动特性与小提琴评价之间的关系模型。最后，将非交互实验与交互实验进行对比。为此，测试对象要自己玩vp，并评估与之前相同的振动特性。因此，一方面可以突出主动交互的影响，另一方面可以评估通过小提琴弓的额外触觉刺激。

Many studies have been presented regarding the assessment of different perceptual attributes when playing violins, highlighting the large influence of the tactile component of the overall multi-modal event on instrument ratings. To date, however, little is known about how different properties of the perceived vibration signal affect the assessment of different perceptual attributes. This relationship will be systematically investigated in this research project. To this end, a new method will be developed first which makes it possible to modify tactile and auditory feedback of a violin independently and arbitrarily. Thus, specific properties of the multi-modal event can be modified while others are kept constant. This is not possible when directly comparing violins as it has often been described in the literature. For this purpose, a "virtual prototype" (v.p.) of a violin will be developed and implemented. This instrument is based on an electric violin, which has the conventional ergonomics of an acoustic violin. It will be equipped with a sound pickup system, a signal processing unit, headphones and vibrators. This allows to realistically reproduce both the sound and the vibrations at the contact points to the instrument. Thus, actual acoustic violins can be emulated or synthetic violins can be created. In addition to being played, this instrument can also be used as an audio-tactile playback device. Furthermore, a measurement system is to be developed which makes it possible to measure transfer functions on acoustic violins that are required for emulation on the v.p.. In addition, this system can be used to make audio-tactile recordings with violins in order to play them back via the v.p..Interactive and non-interactive perceptual experiments will be conducted with the v.p.. First, in the non-interactive mode, it will be investigated how different properties of the vibration signal affect the assessment of perceptual attributes. Therefore, the influence of primitive vibration signals of different frequencies and amplitudes is investigated at the beginning. Then, more complex signals based on vibration recordings of acoustic violins will be used. Based on the results of these experiments, a model for the relationship between vibration characteristics and the evaluation of violins will be developed. Finally, the non-interactive experiments will be compared to interactive experiments. For this purpose, test subjects are to play the v.p. themselves and evaluate the same vibration characteristics as before. Thus, on the one hand the influence of the active interaction can be highlighted and on the other hand the additional tactile stimulus via the violin bow can be evaluated.