Trends in cell phone voice processing
Keywords:Acoustic intensity, Microphones, Mobile phones, Signal to noise ratio, Telecommunication equipment, Telephone, Acoustic design, Background noise reduction, Cell phone, In-cell, Processing power, Significant impacts, Wireless phones
AbstractSome of the significant trends in cell phone voice processing are discussed. It has been observed that the increase in processing power has enabled DSP audio engineers to use more advanced voice processing to provide features and solve several unresolved problems. Continued efforts have been made to develop smaller, thinner, and lighter cell phones after the introduction of the first wireless phone. This trend to shrink the cell phone has a significant impact on the acoustic design and has driven the need for better voice processing features and performance. Microphones move away from the mouth of a speaker as devices continue to shrink in size, reducing signal-to-noise ratio (SNR) at the microphone. Another trend has emerged to provide multiple microphones in an effort to address the need for improved background noise reduction.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.