arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1809.02587cs.SDcs.CVcs.LGcs.MMeess.AS
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360度视频空间音频的自监督生成

Self-Supervised Generation of Spatial Audio for 360 Video

UC San Diego(加州大学圣地亚哥分校);Adobe Research(奥多比研究院)

Pedro Morgado, Nuno Vasconcelos, Timothy Langlois, Oliver Wang

摘要:

我们介绍了一种方法来转换单声道音频记录的360视频摄像机到空间音频,在整个观看范围内的声音分布的表示。空间音频是沉浸式360视频观看的重要组成部分,但空间音频麦克风在当前360视频制作中仍然很少见。我们的系统由端到端可训练的神经网络组成,该网络将单个声源分离并将其定位在观看范围内,以音频和360视频帧的多模态分析为条件。我们介绍了几个数据集,其中一个是我们自己拍摄的,另一个是从YouTube上收集的,由360个上传有空间音频的视频组成。在训练过程中,地面实况空间音频作为自我监督,混合的单声道形成了我们网络的输入。使用我们的方法,我们表明,它是可以推断的声源的空间位置仅基于360视频和单声道音轨。

英文摘要:

We introduce an approach to convert mono audio recorded by a 360 video camera into spatial audio, a representation of the distribution of sound over the full viewing sphere. Spatial audio is an important component of immersive 360 video viewing, but spatial audio microphones are still rare in current 360 video production. Our system consists of end-to-end trainable neural networks that separate individual sound sources and localize them on the viewing sphere, conditioned on multi-modal analysis of audio and 360 video frames. We introduce several datasets, including one filmed ourselves, and one collected in-the-wild from YouTube, consisting of 360 videos uploaded with spatial audio. During training, ground-truth spatial audio serves as self-supervision and a mixed down mono track forms the input to our network. Using our approach, we show that it is possible to infer the spatial location of sound sources based only on 360 video and a mono audio track.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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