Formant Extraction Hardware.

Abstract

MS, Synthesis, Signal processing, Fourier transformation, Transfer functions, Pitch discrimination, Voice communications, Vocoders, Computer programmingFormants, *Formant analysis, Discrete Fourier transformA system for automatic extraction of speech formant frequencies, formant bandwidths, pitch, voicing and mean squared amplitude is described. The system operates on-line in one eighth real-time with a recorded speech signal and feeds the output parameters either into its own memory or to a computer interface for on-line analysis. The formant extraction system uses Atal's Adaptive Linear Predictive Coding algorithm for smoothing the speech spectrum, a discrete Fourier transform for obtaining the spectrum, and peak selection for finding the formants. Techniques for implementing the system on a 16-bit, fixed-point programmable processor and performance results are described. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1973
Accession Number
AD0769959

Entities

People

  • John D. Oetting
  • John R. Welch

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Amplitude
  • Automatic
  • Bandwidth
  • Computer Programming
  • Computers
  • Discrete Fourier Transforms
  • Discrimination
  • Extraction
  • Fourier Transformation
  • Frequency
  • Pitch Discrimination
  • Signal Processing
  • Spectra
  • Transfer Functions
  • Voice Communications

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Radio communications and signal processing.
  • Speech Processing/Speech Recognition.