State-of-the art impulse response measurement technique imposes a measurement latency that constrains real-time application. This paper proposes a first swept-sine technique that can update subsequent impulse responses within a latency of one recording sample. We verify the technique for various LTI and non-LTI measurement setups by driving a mannequin through a test room. The extracted impulse responses correspond widely to conventional swept-sine technique, while we achieve an eight times higher update rate with our implementation on a conventional laptop. The observed mean error for the LTI case is -60 dB, and builds up to -35 dB with increasing LTI violation. We anticipate, the technique can significantly improve the resolution of ultrasound sensing, monitor quick changes in reflective environment or extract impulse responses for augmented reality applications at immersive update rate.
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can
subscribe to this RSS feed.
Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.
