| Paper ID | C-2-1.1 |
| Paper Title |
SIMULTANEOUS MEASUREMENT OF TIME-INVARIANT LINEAR AND NONLINEAR, AND RANDOM AND EXTRA RESPONSES USING FREQUENCY DOMAIN VARIANT OF VELVET NOISE |
| Authors |
Hideki Kawahara, Wakayama University, Japan; Ken-Ichi Sakakibara, Health Science University of Hokkaido, Japan; Mitsunori Mizumachi, Kyushu Institute of Technology, Japan; Masanori Morise, Meiji University, Japan; Hideki Banno, Meijo University, Japan |
| Session |
C-2-1: Signal and Information Processing Methods |
| Time | Wednesday, 09 December, 12:30 - 14:00 |
| Presentation Time: | Wednesday, 09 December, 12:30 - 12:45 Check your Time Zone |
|
All times are in New Zealand Time (UTC +13) |
| Topic |
Signal and Information Processing Theory and Methods (SIPTM): |
| Abstract |
We introduce a new acoustic measurement method that can measure the linear time-invariant response, the nonlinear time-invariant response, and random and time-varying responses simultaneously. The method uses a set of orthogonal sequences made from a set of unit FVNs (Frequency domain variant of Velvet Noise), a new member of the TSP (Time Stretched Pulse). FVN has a unique feature that other TSP members do not. It is a high degree of design freedom that makes the proposed method possible without introducing extra equipment. We introduce two useful cases using two and four orthogonal sequences and illustrates their use using simulations and acoustic measurement examples. We developed an interactive and realtime acoustic analysis tool based on the proposed method. We made it available in an open-source repository. The proposed response analysis method is general and applies to other fields, such as auditory-feedback research and assessment of sound recording and coding. |