SIL Speech Analyzer: Tutorial

1
SIL Speech Analyzer Tutorial

• Dr. Barbara Brindle
• CD 508 Voice Disorders
• Dr. Dudley Bryant
• PHYS 130 - Acoustics

2
Speech Tools 2.1

• Order from
• www.ethnologue.com
• Academic_Books _at_ sil.org
• 972-708-7404
• 19.95 shipping

3
Service BulletinSIL Software Update Disk 5
Installation Error
4
Getting Started
5
What Do These Graphs Represent?
6
Waveform
7
Linear Magnitude
8
Frequency
9
Spectogram
10
Spectrum
11
Melogram
12
Measurement

• OR .. overcoming your fear of Instrumental
  Analysis

13
Instrumental EvaluationTasks

• Sustained Vowel
• Intoned Vowel
• Conversation
• Reading

14
Instrumental Analysis Data

• Frequency range average
• Intensity - range average
• Duration of signal
• Musical note conversion optional
• Depicts pitch and rhythm using musical notation
• Spectral Characteristics
• No numerical report of jitter, shimmer, or noise
  to harmonic ratio
• Visually inspect spectogram spectrum.

15
Status Bar
16
Status Bar Left to Right

• Location of Beginning cursor on x-axis
  represents point in time being measured
• Time interval between beginning and ending
  cursors
• Semitones/ deciBels/ of graph
• Frequency in Hz/ of graph

17
Be careful to note which cursor you are
manipulating in which graph.

• The values in the two right hand status boxes
  will change depending upon the graph being
  manipulated.

18
Demonstration
19
Clinical Benefits of Instrumental Analysis

• Supplements perceptual evaluation by quantifying
  data
• Measures progress/change
• Biofeedback

20
Role of Speech Analyzer in Voice Disorders

• Not magic
• Not rocket science
• Simple, but effective, tool
• Affordable shareware