Proceedings Article10.1109/ICASSP.1987.1169625
Algorithm selection and software time/Space optimization for a DSP micro-based speech processor for a multi-electrode cochlear implant
L. Morris,P. Barszczewski,J. Bosloy +2 more
- 01 Apr 1987
- Vol. 12, pp 972-975
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TL;DR: This programmable system provides a flexible foundation for exploring the utility of other fundamental speech features in addition to pitch and formants for excitation of a cochlear prosthesis.
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Abstract: Selection of appropriate algorithms for pitch and formant extraction, in conjunction with use of innovative programming techniques, enables these speech-related features to be derived in real-time on a low-power TMS 320C10 based-system using about 60% of that chip's computing power. Moreover, since LPC-based techniques are used, an accurate low-bit-rate model of the vocal system is inherent in the raw parameters extracted. This programmable system thus provides a flexible foundation for exploring the utility of other fundamental speech features in addition to pitch and formants for excitation of a cochlear prosthesis.
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Citations
An application of mapping neural networks and a digital signal processor for cochlear neuroprostheses
Jan Zadák,Rolf Unbehauen +1 more
TL;DR: A new method for an efficient derivation of the required information from the incoming speech signal necessary for the implant stimulation is described, using a multilayer neural network in the formant frequency estimation.
9
Algorithms, hardware, and software for a digital signal processor microcomputer-based speech processor in a multielectrode cochlear implant system
L.R. Morris,P. Barszczewski +1 more
TL;DR: The authors discuss software and hardware developed to create a powerful, inexpensive, compact digital signal processing system that in real time extracts a low-bit-rate linear predictive coding (LPC) speech system model.
7
FFT-based digital tactile vocoder system for real-time use.
TL;DR: A preliminary experiment with a deaf subject indicates that the microprocessor-based real-time digital vibrotactile vocoder system is potentially an effective device for artificial hearing.
6
Speech Enhancement Using Semi-Supervised Learning
U Purushotham.,K S Chethan,S Manasa.,U Meghana. +3 more
- 01 Jun 2020
TL;DR: This paper considers semi-supervised machine learning algorithm to improve the quality of speech signal corrupted by environmental disturbance to show a considerable improvement in SNR by 5% to 8% as compared to that of conventional methods.
2
System for a cochlear implant and other hearing prosthesis applications
L. Robert Morris,Peter Barszczewski +1 more
- 01 Jan 1988
TL;DR: A real-time LPC (linear predictive coding) spectral envelope estimator and concurrent SIFT pitch extractor, implemented on a 14-chip TMS320C10-based board, have been migrated to a truly portable and pocketable three-chip, 0.5-W T MS320E17 system.
2
References
Linear Prediction of Speech
J. Markel,Augustine H. Gray +1 more
TL;DR: Linear prediction of speech is a new area in speech processing that has evolved in the past ten years.
2.1K
A comparative performance study of several pitch detection algorithms
TL;DR: A comparative performance study of seven pitch detection algorithms was conducted, consisting of eight utterances spoken by three males, three females, and one child, to assess their relative performance as a function of recording condition, and pitch range of the various speakers.
832
The SIFT algorithm for fundamental frequency estimation
TL;DR: It is demonstrated that the simplified inverse filter tracking algorithm (hereafter referred to as the SIFT algorithm) encompasses the desirable properties of both autocorrelation and cepstral pitch analysis techniques.
420
A fixed point computation of partial correlation coefficients
J. Le Roux,C. Gueguen +1 more
TL;DR: In this paper, a new computational algorithm for the partial correlation coefficients of a linear system given the covariance of its output when excited by a white input noise was proposed. But the proposed algorithm does not make use of the usual parameters in the linear prediction recursion.
178
Automatic generation of time efficient digital signal processing software
TL;DR: It is shown that a functional high-level language signal processing program can easily be modified so as to produce a similar program which, when executed, automatically generates another program containing precomputed algorithm sequencing and data access information.
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