Graphical interpolation systems provide a simple mechanism for the control of sound synthesis by providing a level of abstraction above the engine parameters, allowing users to explore different sounds without awareness of the underlying details. Typically, a graphical interpolator presents the user with a two-dimensional pane where a number of synthesizer presets, each representing a collection of synthesis parameter values, can be located. Moving an interpolation cursor within the pane results in the calculation of new parameter values, based on its position, the relative locations of the presets, and the mathematical interpolation function, thus generating new sounds. These systems supply users with two sensory modalities in the form of sonic output and visual feedback from the interface. A number of graphical interpolator systems have been developed over the years, with a variety of user-interface designs, but few have been subject to formal user evaluation. Our testing studied both user interaction with, and the perceived usability of, graphical interpolation systems by comparing alternative visualizations in order to establish whether the visual feedback provided by the interface aids the locating of sounds within the space. The outcomes of our study may help to better understand design considerations for graphical interpolators and inform future designs.

图形内插系统通过提供高于引擎参数的抽象水平，为用户提供了一种简单的声音合成控制机制，使用户可以在不了解基本细节的情况下探索不同的声音。通常，图形内插器为用户提供一个二维窗格，可以在其中放置许多合成器预设，每个预设代表合成参数值的集合。在窗格中移动插值光标会根据其位置，预设的相对位置以及数学插值函数计算出新的参数值，从而产生新的声音。这些系统以声音输出和来自界面的视觉反馈的形式为用户提供两种感觉形态。多年来，已经开发了许多图形化内插器系统，具有各种用户界面设计，但是很少有人接受过正式的用户评估。我们的测试通过比较替代可视化来研究用户与图形插值系统的交互以及图形插值系统的感知可用性，以便确定界面提供的视觉反馈是否有助于在空间内定位声音。我们的研究结果可能有助于更好地了解图形插值器的设计注意事项，并为将来的设计提供参考。图形插值系统通过比较其他可视化效果来确定接口提供的视觉反馈是否有助于在空间内定位声音。我们的研究结果可能有助于更好地理解图形插值器的设计注意事项，并为将来的设计提供参考。图形插值系统通过比较其他可视化效果来确定接口提供的视觉反馈是否有助于声音在空间中的定位。我们的研究结果可能有助于更好地了解图形插值器的设计注意事项，并为将来的设计提供参考。