By Tokunbo Ogunfunmi,Madihally Narasimha
It is turning into more and more obvious that every one sorts of communication—including voice—will be transmitted via packet-switched networks in line with the web Protocol (IP). for this reason, the layout of contemporary units that depend upon speech interfaces, reminiscent of cellphones and PDAs, calls for an entire and up to date realizing of the fundamentals of speech coding.
Outlines key sign processing algorithms used to mitigate impairments to speech caliber in VoIP networks
Offering a close but simply available advent to the sector, Principles of Speech Coding presents an in-depth exam of the underlying sign processing concepts utilized in speech coding. The authors current coding criteria from a number of firms, together with the foreign Telecommunication Union (ITU). With a spotlight on purposes reminiscent of Voice-over-IP telephony, this complete textual content covers contemporary examine findings on themes including:
- A basic creation to speech processing
- Digital sign processing concepts
- Sampling thought and similar topics
- Principles of pulse code modulation (PCM) and adaptive differential pulse code modulation (ADPCM) standards
- Linear prediction (LP) and use of the linear predictive coding (LPC) model
- Vector quantization and its purposes in speech coding
- Case experiences of useful speech coders from ITU and others
- The web low-bit-rate coder (ILBC)
Developed from the authors’ mixed teachings, this booklet additionally illustrates its contents by means of delivering a real-time implementation of a speech coder on a electronic sign processing chip. With its stability of thought and sensible assurance, it's perfect for senior-level undergraduate and graduate scholars in electric and computing device engineering. it's also appropriate for engineers and researchers designing or utilizing speech coding platforms of their work.
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Extra info for Principles of Speech Coding
Principles of Speech Coding by Tokunbo Ogunfunmi,Madihally Narasimha