| Presentation | 2014-03-08 A Smart-Phone Based System to Detect Warning Sound for Hearing Impaired People Koichiro TAKEUCHI, Tetsuya MATSUMOTO, Yoshinori TAKEUCHI, Hiroaki KUDO, Noboru OHNISHI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The purpose of this study is to develop a system detecting warning sound for a pedestrian. The system applies a IIR band pass filter to an input signal as preprocessing, and then applies a IIR comb filter corresponding to the fundamental frequency of warning sounds. The system obtains the ratio of the mean of the absolute values of the input signal to the output signal of the comb filter, and detects warning sounds by thresholding the ratio. We conducted experiments, in which ambulance sirens corrupted by three kinds of noise samples are inputted to the system. As a result, the proposed system can detect the ambulance sirens with accuracy above of 94% under noisy environments of SNR 10, 0dB, and with accuracy of about 65% under noisy environment of SNR -10dB. However, the system cannot well detect an ambulance siren recorded on the road with accuracy of above 40%. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sound source recognition / warning sound / IIR comb filter |
| Paper # | WIT2013-82 |
| Date of Issue |
| Conference Information | |
| Committee | WIT |
|---|---|
| Conference Date | 2014/2/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Well-being Information Technology(WIT) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Smart-Phone Based System to Detect Warning Sound for Hearing Impaired People |
| Sub Title (in English) | |
| Keyword(1) | sound source recognition |
| Keyword(2) | warning sound |
| Keyword(3) | IIR comb filter |
| 1st Author's Name | Koichiro TAKEUCHI |
| 1st Author's Affiliation | Graduate School of Information Science, Nagoya University() |
| 2nd Author's Name | Tetsuya MATSUMOTO |
| 2nd Author's Affiliation | Graduate School of Information Science, Nagoya University |
| 3rd Author's Name | Yoshinori TAKEUCHI |
| 3rd Author's Affiliation | School of Informatics, Daido University |
| 4th Author's Name | Hiroaki KUDO |
| 4th Author's Affiliation | Graduate School of Information Science, Nagoya University |
| 5th Author's Name | Noboru OHNISHI |
| 5th Author's Affiliation | Graduate School of Information Science, Nagoya University |
| Date | 2014-03-08 |
| Paper # | WIT2013-82 |
| Volume (vol) | vol.113 |
| Number (no) | 481 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |