Digital Speech in Noise (DSIN) with the 6500-CX

 


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Table of Contents

Digital Speech in Noise (DSIN) with the 6500-CX

When Should You Consider Using a “Special” Noise Source to Test DSP Aids?

Examples of Current DSP Hearing Aids Where a Modulated Signal May or May Not Be Required to Obtain Accurate REAG/REIG Measures.

Digital Speech Signal

Entering DSIN

The DSIN Screen

Two Speech Spectra

ANSI and ICRA Spectrum (Frye, 2000)

Same Hearing Aid Measured With Three Signals (Frye, 2000)

Changing the Noise Spectrum

Testing a Digital Hearing Aid

Adding a Bias Tone

PPT Slide

PPT Slide

ANSI Testing with a Bias Tone

No Bias and 500 Hz Bias Added in Between the Bursts of the Digital Speech (Frye, 2000)

PPT Slide

No Bias and 4000 Hz Bias Added in Between the Bursts of the Digital Speech (Frye, 2000)

Curve Comparison using Multi-Curve

Changing the Bias Level

ICRA Testing with a Bias Tone

Bias Tone with Aid With No NR

Multi-Curve with Bias Tones (500, 1000 and 4000 Hz)

Enhanced DSP Option

Enhanced DSP Option

Technical Details Group Delay

Technical Details Phase measurement

Entering Enhanced DSP

The Enhanced DSP Screen

Measurement without aid: Measure Delay of the Equipment

Group Delay Results

Phase Results

Enhanced DSP Test #1

Phase comparison

Enhanced DSP Test #2

Enhanced DSP Test #3

Enhanced DSP Test #4

Phase comparison

Enhanced DSP #5

Phase Comparison

Enhanced DSP #6

Comparison of Phase

Real Ear Measures Using Digital Speech Test

Introduction to Real-Ear Digital Speech on the 6500-CX

Entering Real-Ear Mode

Leveling the Sound-Field Loudspeaker

Leveling: Step 2

Leveling: Step 3

Unaided Response - Average or Measured?

Unaided Response

Unaided: Step 2

Audiogram Menu Options

Menu Selections

Entering an Audiogram

Audiogram: Step 2

Audiogram: Step 3

Audiogram: Step 4

Audiogram: Step 5

The SPL Screen

Digital Speech

Digital Speech Selections

SPL Menu

Back to SPL Screen

Digital Fitting: Soft Speech

“Soft” speech measurement

“Average” speech measure

“Loud” measure

Adding a Bias-Tone to DSP

Digital Speech Menu

Examples of the bias signal

Another Example of Using A Bias Signal

Yet Another Example of Using a Bias Signal

PPT Slide

Author: Michael Valente and Kristina Frye

Email: sales@frye.com

Home Page: www.frye.com

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