| Presentation | 2006-09-14 Expansion Techniques of Embedding Audio Watermark Data Rate for Constructing Ubiquitous Acoustic Spaces Toshio MODEGI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We are proposing "Ubiquitous Acoustic Spaces", where each sound source can emit some address information and makes us automatically access to its related cyber space, using mobile devices. In order to realize this, we have proposed a novel audio watermarking technique, which enables contactless asynchronous detection of embedded watermarks through speaker and microphone devices. However its embedding data rate was around 10 [bps], which was not sufficient for embedding such as URL texts. Therefore, we have extended the embedding frequency range and proposed a duplicated embedding algorithm, which uses both previously proposed frequency division method and temporal division method. By these improvements, possible embedding data rate could be extended to 61.5 [bps], and we could extract watermarks through public telephone networks, even from a cell phone speaker. In this paper, we describe abstracts of our improved watermark embedding algorithms, and experimental results of extraction precision on several signal capturing conditions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | acoustic spaces / ubiquitous / audio watermark / embedding data rate / cell phone / public phone network |
| Paper # | MoMuC2006-37 |
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| Conference Information | |
| Committee | MoMuC |
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| Conference Date | 2006/9/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Mobile Multimedia Communications(MoMuC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Expansion Techniques of Embedding Audio Watermark Data Rate for Constructing Ubiquitous Acoustic Spaces |
| Sub Title (in English) | |
| Keyword(1) | acoustic spaces |
| Keyword(2) | ubiquitous |
| Keyword(3) | audio watermark |
| Keyword(4) | embedding data rate |
| Keyword(5) | cell phone |
| Keyword(6) | public phone network |
| 1st Author's Name | Toshio MODEGI |
| 1st Author's Affiliation | Media Technology Research Center, Dai Nippon Printing Co., Ltd.() |
| Date | 2006-09-14 |
| Paper # | MoMuC2006-37 |
| Volume (vol) | vol.106 |
| Number (no) | 245 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |