Abstract
The acceptable level of speech transmission is obtained in the frequency range of 400–3400 Hz and our ear is sensible to frequencies that are around 3 kHz. In analog speech transmission, one of the shortcomings is noise and interference which is more significant during pauses. In digital transmission, speech and speech pauses are encoded with data pattern and transmitted at a constant power level which ensures better quality, provides higher capacity and deals with longer distance. The main drawback of digital transmission is the requirements of greater bandwidth. Nonetheless, the benefits of digital transmission outweigh the bandwidth consideration.
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References
L.W. Couch, Digital & Analog Communication Systems, 8th edn. ISBN: 978-9332518582
B.P Lathi, Modern Digital and Analog Communication Systems, 3rd edn. ISBN: 978-0195110098
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Matin, M.A. (2018). Speech Digitization and Service Integration. In: Communication Systems for Electrical Engineers . SpringerBriefs in Electrical and Computer Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-70129-5_3
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DOI: https://doi.org/10.1007/978-3-319-70129-5_3
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Online ISBN: 978-3-319-70129-5
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