A Novel Digital Signal Processing Software Text-To-Speech

This paper is a novel digital signal processing software of the advanced conversion of text-to-speech synthesis technology, which has been available as a range of hardware products for more than ten years, to software. It was initially created as a replacement for character cell terminals and telephony applications, but it is now also used to give people who are visually impaired access to information. With a digital formant synthesizer used to mimic the human vocal tract, text-to-speech quality is very high in both understandability and naturalness. The computational requirements of this synthesizer put a tremendous amount of strain on a workstation in the days before extremely fast processors. Multiple text streams were simultaneously converted to speech for this study using a Digital Equipment AlphaModel 600 workstation. Modern RISC processor power enables applications to freely output speech. A text-to-speech application programming interface (API) is now necessary as a result of this capability. The TTS software API we created is compatible with a wide range of hardware and operating systems. The architecture of the TTS software is described in this paper. Additionally, the API is mentioned. Finally, we describe our experience porting the TTS code base from the previous hardware platforms.

本文介绍了一种创新的数字信号处理软件，该软件实现了先进的文本到语音合成技术的升级转换，该技术自十年前作为一系列硬件产品推出以来，现已成功转化为软件形式。最初，该软件被设计为字符单元格终端和电话应用的替代品，但如今，它也用于帮助视障人士获取信息。通过采用数字声源合成器模拟人类发音器官，该文本到语音合成在可理解性和自然度方面均达到了极高的质量。在极快速处理器出现之前，该合成器的计算需求对工作站施加了巨大的压力。本研究中，使用 Digital Equipment AlphaModel 600 工作站同时将多个文本流转换为语音。现代精简指令集处理器（RISC）的强大性能使得语音输出变得自由流畅。鉴于这一能力，文本到语音应用程序编程接口（API）的必要性应运而生。本文中，我们描述了我们创建的 TTS 软件API，该API与多种硬件和操作系统兼容。此外，本文还阐述了 TTS 软件的架构。最后，我们分享了将 TTS 代码库从先前硬件平台迁移的经验。