Please use this identifier to cite or link to this item:
https://www.um.edu.mt/library/oar/handle/123456789/108890
Title: | Low voltage log domain front end for the extraction of 2-D sound localization cues |
Authors: | Grech, Ivan Micallef, Joseph Vladimirova, T. |
Keywords: | Low voltage integrated circuits Frequency discriminators Signal processing Data mining -- Case studies Delay lines Calibration -- Research Microelectronics |
Issue Date: | 2001 |
Publisher: | Institute of Electrical and Electronics Engineers |
Citation: | Grech, I., Micallef, J., & Vladimirova, T. (2001). Low voltage log domain front end for the extraction of 2-D sound localization cues. 8th IEEE International Conference on Electronics, Circuits and Systems, Malta. 1473-1476. |
Abstract: | This paper proposes a novel current-mode front end for the extraction of localization spectral cues from two audio signals. A current mode log domain implementation via subthreshold MOS operation is used for micropower operation while still achieving a good bandwidth. In addition, log domain processing results in good linearity. A current mode solution is also preferred because of the ease of implementation of certain mathematical operations. The front end splits the input signals into different frequency bands and computes monaural and interaural spectral cues from the resulting signal envelopes for each band. The front end has been optimized to operate at a supply voltage of 1.8 V and most blocks have been designed using a differential architecture. To our knowledge, this is the first log domain implementation of a front end with localization cues extraction. The design has been carried out using a standard double-poly double metal 0.8 /spl mu/m CMOS process with V/sub T/ = 0.8 V. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/108890 |
Appears in Collections: | Scholarly Works - FacICTMN |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Low_voltage_log_domain_front_end_for_the_extraction_of_2-D_sound_localization_cues.pdf Restricted Access | 353.09 kB | Adobe PDF | View/Open Request a copy |
Items in OAR@UM are protected by copyright, with all rights reserved, unless otherwise indicated.