数字音频水印在居室电视互动场景中的关键技术

The Key Technology of Digital Audio Watermarking for Sound Interaction

数字音频水印技术在居室电视互动应用场景中由用户发起交互请求,用户可通过对声音中水印的识别主动和在播节目建立桥接。数字音频水印的互动应用改变了传统广播电视的单向传输模式,目前正在全国各主流电视台内落地应用。本文首先介绍数字音频水印技术的基本原理,之后介绍用户在进行电视互动时客厅声场条件对音频水印的影响及其检测算法,最后介绍我院开发的数字音频水印技术的音质评价和鲁棒性测试结果,以证明该技术的可实施性。

The audio watermarking is used for TV sound interaction, which is as a bridge connected with the user and TV programs. This technology could change the one-way transmission in broadcasting, and has currently been applied in some mainstream TV stations. This paper mainly focuses on the audio watermarking scheme and it’s detection algorithm. It also focuses on the watermarked audio quality assessment and its robustness test. It is demonstrated as an effective implementation in the TV sound interaction.