HEAR 657 Term 4 Chapter 3

What is the term used to describe technology that classifies the input signal and reduces the signals classified as noise?

• Input reduction technology

• Output reduction technology

• Noise reduction technology

• Directional microphone technology

Which statement(s) is/are true about the evidence base regarding noise reduction technology?

• Weak but consistent evidence for reducing SNR

• Weak but consistent evidence for improving speech understanding in noise

• Weak mixed results for improving listening effort

• No evidence for improving speech understanding in noise

Which statement(s) is/are true about the evidence base regarding directional microphone technology?

• Conclusive evidence that d-mics improve speech understanding in noise

• Mixed evidence that d-mics improve speech understanding in noise

• No evidence that d-mics improve listening effort

• Emerging evidence that d-mics improve listening effort

Which statement(s) about the HHI is/are true?

• The 10-item version has smaller CD scores than the full version.

• The CD scores are smaller for face-to-face administration than paper-pencil.

• The HHIA has smaller CD scores than the HHIE when administered paper-pencil.

• There are no published normative data for the HHIE or HHIA.

Which of the following statement(s) is/are true about the SADL?

• It is a companion to the ECHO.

• It has small CD scores.

• There are 2 sets of normative data for service and cost.

• High scores on the Negative Features means they are happy with these features.