1 / 19

DSP platforms and Applications

Adaptive acoustic beamformers. DSP platforms and Applications. Highlight. This seminar is to introduce the applications of adaptive acoustic beamformers and investigate DSP platforms in order to develop novel algorithms and produce a product e.g. a portable hearing aids.

zazu
Download Presentation

DSP platforms and Applications

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Adaptive acoustic beamformers DSP platformsand Applications

  2. Highlight This seminar is to introduce the applications of adaptive acoustic beamformers and investigate DSP platforms in order to develop novel algorithms and produce a product e.g. a portable hearing aids. Tom Qi

  3. Applications – hearing aids Above hearing aids are produced by Siemens Hearing Instruments, Inc. Digital Signal Processor (DSP) is used and Noise reduction by Voice Activity Detection (VAD) technology. Source: http://www.siemens-hearing.com/ Tom Qi

  4. Applications – hearing aids Completely-in-the-Canal In-the-Canal Behind-the-Ear In-the-Ear Source: http://www.siemens-hearing.com/ Tom Qi

  5. Real time DSP – Hearing aids Tom Qi

  6. algorithms An adaptive filter consists of a digital filter and an adaptive algorithm. The adaptive algorithm is used to adjust the digital filter’s coefficients to minimize the error of the adaptive filter output in respect to a reference signal according to certain criterion, for example, least squares error. Tom Qi

  7. Algorithms Noise reduction strategy for hearing aids Source: MajJ. B., Woutersb J., Moonena M., 2001, Evaluation of an adaptive beamformer for behind-the-ear hearing aids Tom Qi

  8. Algorithms Noise reduction strategy Source: Moir T.J., Real-time acoustic beamformer as a virtual instrument Tom Qi

  9. algorithms Voice Activity Detection (VAD) Source: Moir T.J., Real-time acoustic beamformer as a virtual instrument Tom Qi

  10. Process of product development After develop novel algorithms, producing products is desired. Tom Qi

  11. Tools introduction Tom Qi

  12. Tools – Microphones Tom Qi

  13. Tools –Preamplifier Tom Qi

  14. Tools- TI DSK and daughter board Tom Qi

  15. Tools - Analyzer Tom Qi

  16. Tools - Analyzer Tom Qi

  17. C Code Tom Qi

  18. Test processes Tom Qi

  19. Conclusion Conclusion I am getting there... Thank you Tom Qi

More Related