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arXiv 1403.6901cs.SDcs.LGcs.MM
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基于自相似矩阵的广播新闻音频自动分割

Automatic Segmentation of Broadcast News Audio using Self Similarity Matrix

Institute of Technology, Nirma University(尼尔玛大学理工学院);TCS Innovation Labs - Mumbai, Tata Consultancy Services Limited(塔塔咨询服务有限公司TCS创新实验室(孟买))

Sapna Soni, Ahmed Imran, Sunil Kumar Kopparapu

摘要:

一般来说,无线电广播的音频新闻除了由新闻播音员阅读的实际新闻外,还包括音乐、商业广告、来自记者的新闻和录音声明。当新闻转录可用时,音频新闻广播的自动分割以将音频与文本转录时间对齐以构建节俭的语音语料库是必不可少的。我们解决的问题,确定在音频新闻广播中的分段对应的新闻播音员阅读的新闻,使他们可以映射到文本成绩单。现有技术在用于提取新闻阅读器阅读片段时产生次优解决方案。在本文中,我们提出了一种新的技术,这是能够确定可靠的声学变化点使用声学自相似矩阵(SSM)。我们详细描述了两遍技术,并验证了其性能上的真正的音频新闻广播的全印度广播电台不同的语言。

英文摘要:

Generally audio news broadcast on radio is com- posed of music, commercials, news from correspondents and recorded statements in addition to the actual news read by the newsreader. When news transcripts are available, automatic segmentation of audio news broadcast to time align the audio with the text transcription to build frugal speech corpora is essential. We address the problem of identifying segmentation in the audio news broadcast corresponding to the news read by the newsreader so that they can be mapped to the text transcripts. The existing techniques produce sub-optimal solutions when used to extract newsreader read segments. In this paper, we propose a new technique which is able to identify the acoustic change points reliably using an acoustic Self Similarity Matrix (SSM). We describe the two pass technique in detail and verify its performance on real audio news broadcast of All India Radio for different languages.

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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