SIL Speech Analyzer: Tutorial

SIL Speech Analyzer: Tutorial

•Dr. Barbara Brindle• CD 508 – Voice Disorders

•Dr. Dudley Bryant• PHYS 130 - Acoustics

Speech Tools 2.1Speech Tools 2.1

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• $19.95 + shipping

Service BulletinSIL Software Update Disk 5

Installation Error

Service BulletinSIL Software Update Disk 5

Installation Error

Getting StartedGetting Started

What Do These Graphs Represent?

What Do These Graphs Represent?

WaveformWaveform

Linear MagnitudeLinear Magnitude

FrequencyFrequency

SpectogramSpectogram

SpectrumSpectrum

MelogramMelogram

MeasurementMeasurement

OR .. overcoming your fear of Instrumental Analysis

Instrumental Evaluation:Tasks

Instrumental Evaluation:Tasks

• Sustained Vowel• Intoned Vowel• Conversation• Reading

Instrumental Analysis: Data

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.

Status BarStatus Bar

Status Bar: Left to Right

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

Be careful to note which cursor you are

manipulating in which graph.

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.

DemonstrationDemonstration

Clinical Benefits of Instrumental Analysis

Clinical Benefits of Instrumental Analysis

• Supplements perceptual evaluation by quantifying data

• Measures progress/change• Biofeedback

Role of Speech Analyzer in Voice

Disorders

Role of Speech Analyzer in Voice

Disorders

• Not magic• Not rocket science

• Simple, but effective, tool• Affordable shareware