Real Time Harmonic Pitch Detector

Abstract

A real time harmonic pitch detection algorithm has been developed on the Lincoln Digital Voice Terminal (LDVT). The algorithm was designed to be fast and to perform well when the input speech is degraded (i.e., telephone quality) or corrupted with acoustically coupled noise. The algorithm determines the fundamental frequency from the spacing between harmonics in a selected portion of the spectrum. The algorithm was incorporated into a real time linear prediction vocoder and compared favorably in informal listening tests with the Gold-Rabiner time domain detector under a variety of adverse conditions.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 26, 1977
Accession Number
ADA038542

Entities

People

  • Stephanie Seneff

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Aircrafts
  • Algorithms
  • Detection
  • Detectors
  • Digital Signal Processing
  • Distortion
  • Engine Noise
  • Frequency
  • Gaussian Noise
  • Jet Engine Noise
  • Noise
  • Preprocessing
  • Signal Processing
  • Simulators
  • Telephone Systems
  • Time Domain
  • Waveforms

Readers

  • Aerodynamics.
  • Approximation Theory.
  • Tactical Satellite Communications Systems Engineering.

Technology Areas

  • Space