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Title: | Experimental results obtained from analog chips used for extracting sound localization cues |
Authors: | Grech, Ivan Micallef, Joseph Vladimirova, T. |
Keywords: | Analog CMOS integrated circuits Azimuth Acoustical engineering -- Data processing Data mining -- Case studies Detectors Delay faults (Semiconductors) |
Issue Date: | 2002 |
Publisher: | Institute of Electrical and Electronics Engineers |
Citation: | Grech, I., Micallef, J., & Vladimirova, T. (2002). Experimental results obtained from analog chips used for extracting sound localization cues. 9th International Conference on Electronics, Circuits and Systems, Dubrovnik. 247-251. |
Abstract: | Sound localization, in both azimuth and elevation, using two (left and right) sensors can be carried out by extracting, from the received left and right signals, certain features known as localization cues. This paper presents the test results obtained from three cue extraction chips implemented using standard 0.8 /spl mu/m CMOS technology (threshold voltage: 0.8 V) and operating at a supply voltage of /spl plusmn/0.9 V. The chips consist of an onset detector which determines those portions of the received waveform which contain primarily incident (as opposed to echo) information, a spectral cue front-end and a time delay estimator. Some block level results are presented, together with measured cue values. To our knowledge, these are the first results obtained from such an analog localization hardware, which has been broadly inspired from the biological auditory system. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/108891 |
Appears in Collections: | Scholarly Works - FacICTMN |
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Experimental_results_obtained_from_analog_chips_used_for_extracting_sound_localization_cues.pdf Restricted Access | 335.04 kB | Adobe PDF | View/Open Request a copy |
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