تقرير
Fast Cross-Correlation for TDoA Estimation on Small Aperture Microphone Arrays
| العنوان: | Fast Cross-Correlation for TDoA Estimation on Small Aperture Microphone Arrays |
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| المؤلفون: | Grondin, François, Maheux, Marc-Antoine, Lauzon, Jean-Samuel, Vincent, Jonathan, Michaud, François |
| سنة النشر: | 2022 |
| المجموعة: | Computer Science |
| مصطلحات موضوعية: | Electrical Engineering and Systems Science - Signal Processing, Computer Science - Sound, Electrical Engineering and Systems Science - Audio and Speech Processing |
| الوصف: | This paper introduces the Fast Cross-Correlation (FCC) method for Time Difference of Arrival (TDoA) Estimation for pairs of microphones on a small aperture microphone array. FCC relies on low-rank decomposition and exploits symmetry in even and odd bases to speed up computation while preserving TDoA accuracy. FCC reduces the number of flops by a factor of 4.5 and the execution speed by factors between 3.5 and 8.3 on embedded hardware, compared to the state-of-the-art Generalized Cross-Correlation (GCC) method that relies on the Fast Fourier Transform (FFT). This improvement can provide portable microphone arrays with extended battery life and allow real-time processing on low-cost hardware. Comment: Submitted to IEEE ICASSP 2023 |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2204.13622 |
| رقم الأكسشن: | edsarx.2204.13622 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |