Design Space Exploration Framework for Tensilica-Based Digital Audio Processors in Hearing Aids

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Jens Karrenbauer
  • Lukas Gerlach
  • Guillermo Paya-Vaya
  • Holger Blume

Research Organisations

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Details

Original languageEnglish
Title of host publication2020 9th International Conference on Modern Circuits and Systems Technologies
Subtitle of host publicationMOCAST 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (electronic)9781728166872
Publication statusPublished - 2020
Event9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020 - Bremen, Germany
Duration: 7 Sept 20209 Sept 2020

Publication series

Name2020 9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020

Abstract

Choosing a suitable processor architecture for a hearing aid is a difficult task. Various aspects have to be taken into account, like power consumption and silicon area. Also, the computational performance and flexibility of an architecture are essential. Therefore, a wide variety of design goals must be weighted against each other before a final decision for the architecture can be made. In this paper, several configurable audio processors are evaluated, using five commonly known acoustic beamforming algorithms. In order to reduce the exploration time, this paper presents a partly automated design space exploration framework. The hearing aid algorithms are implemented in fixedpoint representation to reduce the computational complexity. This framework includes a fixed-point analysis and an automated reference code generation using MATLAB tools. With the Xtensa Xplorer, different configurations of the Tensilica-based processor architecture are profiled. Finally, a case study is presented to show the usability of the proposed framework.

Keywords

    Acoustic Beamforming, Design Space Exploration, Hearing Aid Processor, Low-Power, MATLAB, Tensilica Fusion, Tensilica Hifi

ASJC Scopus subject areas

Sustainable Development Goals

Cite this

Design Space Exploration Framework for Tensilica-Based Digital Audio Processors in Hearing Aids. / Karrenbauer, Jens; Gerlach, Lukas; Paya-Vaya, Guillermo et al.
2020 9th International Conference on Modern Circuits and Systems Technologies: MOCAST 2020. Institute of Electrical and Electronics Engineers Inc., 2020. 9200250 (2020 9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Karrenbauer, J, Gerlach, L, Paya-Vaya, G & Blume, H 2020, Design Space Exploration Framework for Tensilica-Based Digital Audio Processors in Hearing Aids. in 2020 9th International Conference on Modern Circuits and Systems Technologies: MOCAST 2020., 9200250, 2020 9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020, Institute of Electrical and Electronics Engineers Inc., 9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020, Bremen, Germany, 7 Sept 2020. https://doi.org/10.1109/mocast49295.2020.9200250
Karrenbauer, J., Gerlach, L., Paya-Vaya, G., & Blume, H. (2020). Design Space Exploration Framework for Tensilica-Based Digital Audio Processors in Hearing Aids. In 2020 9th International Conference on Modern Circuits and Systems Technologies: MOCAST 2020 Article 9200250 (2020 9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/mocast49295.2020.9200250
Karrenbauer J, Gerlach L, Paya-Vaya G, Blume H. Design Space Exploration Framework for Tensilica-Based Digital Audio Processors in Hearing Aids. In 2020 9th International Conference on Modern Circuits and Systems Technologies: MOCAST 2020. Institute of Electrical and Electronics Engineers Inc. 2020. 9200250. (2020 9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020). doi: 10.1109/mocast49295.2020.9200250
Karrenbauer, Jens ; Gerlach, Lukas ; Paya-Vaya, Guillermo et al. / Design Space Exploration Framework for Tensilica-Based Digital Audio Processors in Hearing Aids. 2020 9th International Conference on Modern Circuits and Systems Technologies: MOCAST 2020. Institute of Electrical and Electronics Engineers Inc., 2020. (2020 9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020).
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abstract = "Choosing a suitable processor architecture for a hearing aid is a difficult task. Various aspects have to be taken into account, like power consumption and silicon area. Also, the computational performance and flexibility of an architecture are essential. Therefore, a wide variety of design goals must be weighted against each other before a final decision for the architecture can be made. In this paper, several configurable audio processors are evaluated, using five commonly known acoustic beamforming algorithms. In order to reduce the exploration time, this paper presents a partly automated design space exploration framework. The hearing aid algorithms are implemented in fixedpoint representation to reduce the computational complexity. This framework includes a fixed-point analysis and an automated reference code generation using MATLAB tools. With the Xtensa Xplorer, different configurations of the Tensilica-based processor architecture are profiled. Finally, a case study is presented to show the usability of the proposed framework. ",
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AU - Gerlach, Lukas

AU - Paya-Vaya, Guillermo

AU - Blume, Holger

N1 - Funding information: This work was funded by the Deutsche Forschungsgemein-schaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – EXC 2177/1 - Project ID 390895286.

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