基于SoC的卡拉OK软硬件实现的研究

本文首先介绍了基于SoC的卡拉OK系统的核心硬件音效处理器,包括常见的四类音效处理器各自的特点,音效处理器的架构分析及在原有架构基础的信号流的优化.其次,从固定声音延时、变化声音延时两方面对卡拉OK的音效处理系统进行硬件加速,满足回声、混响、镶边、合声和颤音等音效的一套硬件架构.再次,阐述卡拉OK必备的点歌系统的分析及设计方案,达到功能完备,界面美观,操作简单易于上手.最后,突破传统卡拉OK单一的唱歌模式,对评分系统进行技术分析和方案研究,从而通过评分系统为用户提供从点唱到娱乐互动的全新体验.

Research on implementation scheme of Karaoke hardware and software based on SoC

This article first introduced the karaoke system based on SoC core hardware sound processor, including the four characteristics of the four types of audio processors, the architecture analysis of the sound processor and the optimization of the signal flow based on the original architecture. Secondly, from the fixed sound delay, change the sound delay on both aspects of the karaoke sound processing system hardware acceleration, a set of hardware architectures that meet the effects of echo, reverb, trim, chorus, and vibrato. Again, elaborate karaoke VOD system analysis and design, to achieve full-featured, beautiful interface, easy to operate easy. Finally, breaking the traditional karaoke OK single singing mode, the scoring system for technical analysis and program research, so that through the scoring system to provide users with a new experience from the point of singing to entertainment.