Accurate stability prediction of single-bit higher-order Δ-Σ modulators for Speech Codecs

Conference paper

Lota, J., Al-Janabi, Mohammed and Kale, Izzet 2011. Accurate stability prediction of single-bit higher-order Δ-Σ modulators for Speech Codecs. Proceedings IEEE International Symposium on Circuits & Systems -ISCAS 2011. Rio de Janeiro, Brazil 15 - 18 May 2011
AuthorsLota, J., Al-Janabi, Mohammed and Kale, Izzet
TypeConference paper
Abstract

Present approaches for predict
of Delta-Sigma (Δ-Σ) modulators are mo
DC inputs. This poses limitations as pract
of Δ-Σ modulators involve a wide range
than DC such as speech, audio and multip
the case for synthetically generated spee
any other signal, through the appropriat
multiple sinusoids. In this paper, a quasi linear model that accurately predicts stability of single-loop 1-bit higher order (Δ-Σ) modulators for mulitple sinusoids is given. The results of this paper would enable optimization of the design of higher-order single-loop (Δ-Σ) modulators with increased dynamic ranges for various applications that deploy multiple sinusoidal inputs, as well as any general input signal constructed from multiple sinusoids.

KeywordsDelta Sigma modulators; Noise amplication factor; electrical engineering; synthetic speech codec; sinusoids
Year2011
ConferenceProceedings IEEE International Symposium on Circuits & Systems -ISCAS 2011
Accepted author manuscript
License
CC BY-ND
Publication dates
PrintMay 2011
Publication process dates
Deposited12 Apr 2011
Web address (URL)http://hdl.handle.net/10552/1204
Additional information

Citation:
Lota, J., Al-Janabi, M., Kale, I. (2011) ‘Accurate stability prediction of single-bit higher-order Δ-Σ modulators for Speech Codecs.', Proceedings IEEE International Symposium on Circuits & Systems -ISCAS 2011, Rio de Janeiro, Brazil, 15-18 May 2011..

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