| Paper Abstract and Keywords |
| Presentation |
2026-07-16 14:25
Evaluation of Differential Order in Ambulance Siren Detection Using Zero-Crossing Rate and Differential Preprocessing for Low-Power Integrated Circuit Implementation
Yuya Saeki, Hiroshi Tsutsui, Chenyu Zhao, Takeo Ohgane (Hokkaido Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this paper, we evaluate the effect of differential order in an ambulance siren detection system using zero-crossing rate (ZCR) and differential preprocessing. In the proposed system, siren-sound candidates are first detected by a simple low-power process, and then a more reliable siren-sound decision process is performed. The ZCR calculation can be implemented in an integrated circuit by counting sign changes between each input sample and the previous sample. An ambulance siren consists of alternating tones at 960Hz and 770Hz. Therefore, the ZCR corresponding to these frequencies can be used to trigger a reliable siren-sound decision process. However, the presence of low-frequency components makes it difficult to detect the ZCR associated with the siren frequencies. To address this issue, we apply differentiation as a preprocessing step, which functions as a high-pass filter and can also be implemented in an integrated circuit. The experimental results show that first-order differential preprocessing is the most effective for the evaluated data and that the proposed candidate-detection approach is feasible for low-power integrated circuit implementation. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Zero-crossing rate (ZCR) / Low-frequency suppression / Siren-sound detection / Sound event detection (SED) / IoT / / / |
| Reference Info. |
ITE Tech. Rep., vol. 50, no. 19, BCT2026-44, pp. 5-8, July 2026. |
| Paper # |
BCT2026-44 |
| Date of Issue |
2026-07-09 (BCT) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
BCT IEEE-BT HOKKAIDO |
| Conference Date |
2026-07-16 - 2026-07-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
|
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Broadcast Operating, Transmission & Reception, Program creation, Broadcast master control , etc |
| Paper Information |
| Registration To |
BCT |
| Conference Code |
2026-07-BCT-BT-HOKKAIDO |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Evaluation of Differential Order in Ambulance Siren Detection Using Zero-Crossing Rate and Differential Preprocessing for Low-Power Integrated Circuit Implementation |
| Sub Title (in English) |
|
| Keyword(1) |
Zero-crossing rate (ZCR) |
| Keyword(2) |
Low-frequency suppression |
| Keyword(3) |
Siren-sound detection |
| Keyword(4) |
Sound event detection (SED) |
| Keyword(5) |
IoT |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Yuya Saeki |
| 1st Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
| 2nd Author's Name |
Hiroshi Tsutsui |
| 2nd Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
| 3rd Author's Name |
Chenyu Zhao |
| 3rd Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
| 4th Author's Name |
Takeo Ohgane |
| 4th Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2026-07-16 14:25:00 |
| Presentation Time |
20 minutes |
| Registration for |
BCT |
| Paper # |
BCT2026-44 |
| Volume (vol) |
vol.50 |
| Number (no) |
no.19 |
| Page |
pp.5-8 |
| #Pages |
4 |
| Date of Issue |
2026-07-09 (BCT) |