Lecture 7 Speech Decoding

Lecture 7 Speech Decoding - LIN 4930 Speech Decoding and...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
LIN 4930 Speech Decoding and Transcripts
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Introduction Goal of speech decoding: Document what was said by whom, and any relevant extraneous events Challenge: Audio recordings of speech used in court cases are typically made under less than ideal conditions Sources of degradation of signal Channel Distortion Talker Distortion
Background image of page 2
Channel Distortions Recordings made from poor quality transducers Microphones, telephones, tape recorders, body bugs Problems: Poor frequency response Clipping Speed variations Analog recordings made on poor quality tape Background noise, particularly in the frequency range of speech Improper use of recording equipment
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Talker Distortions Intended vs. Inadvertent Voice disguise Dialect/language background Speech rate variation Increase in coarticulation Omissions Misarticulations Substitutions Emotional state and voice Intoxication by alcohol, drugs Crosstalk
Background image of page 4
Examples Increase in coarticulation Omissions Misarticulations Substitutions
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/22/2011 for the course LIN 4930 taught by Professor Habib,r during the Spring '08 term at University of Florida.

Page1 / 10

Lecture 7 Speech Decoding - LIN 4930 Speech Decoding and...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online