Course Details Course # 19999 Siemens Expert Series: NAL-NL2 - Principles, Background Data, and Comparison to Other Procedures http://www.audiologyonline.com/audiology-ceus/course/siemens-expert-series-nal-nl2-19999 P1H 2 2 Tuesday, July 17, 2012 at 5:00 pm CDT The Live Webinar has already taken place. Preview Exam Disclosure: This course is presented by Siemens in partnership with AudiologyOnline. Course Abstract NAL-NL2 is based on the same principles as NAL-NL1 - maximizing intelligibility while keeping overall loudness to no greater than that perceived by a person with normal hearing. Considerable data has become available about what hearing-impaired people prefer and function best with, and how much information they can extract from speech. These empirical data were used to guide the theoretical derivation of the NAL-NL2 prescription. A key concept in the derivation is effective audibility, which takes into account the decreasing ability to extract information from speech as hearing thresholds increase, even when speech is completely audible. The course will take the participant though the principles and practical consequences of the NAL-NL2 prescription procedure. Disclosure: This learning event does not focus exclusively on any specific product or service. Search Course Listings Browse Course Topics Course Learning Outcomes Preview Exam Participants will be able to describe the principles on which the NAL-NL2 prescription is based.Participants will be able to describe the main differences between NAL-NL1 and NAL-NL2.Participants will be able to list three parameters, other than hearing thresholds, that affect the NAL-NL2 target.Participants will be able to describe the process used to derive the NAL-NL2 prescription.Participants will be able to list several factors that affect the intelligibility of amplified speech. Time-ordered Agenda 0-5 Minutes Introduction 5-15 Minutes Deriving NAL-NL2 15-25 Minutes Modeling speech intelligibility 25-35 Minutes Relationship of speech intelligibility to psychoacoustics 35-50 Minutes Empirical data affecting NAL-NL2 50-55 Minutes Examples of prescription variations 55-60 Minutes Comparisons to other prescriptions 55-60 Minutes Impact of trainable aids on prescription 60-65 Minutes QA Course Information The Event has already taken place, you may no longer register. Course Presenters Harvey Dillon, PhD Director of the National Acoustic Laboratories Harvey Dillon is the Director of the National Acoustic Laboratories. He is involved in the supervision of research into hearing assessment, procedures for rehabilitating hearing loss, improved devices for assisting hearing loss, and hearing loss prevention. Gitte Keidser, PhD Senior Research Scientist Gitte Keidser is a Senior Research Scientist with the National Acoustic Laboratories where she manages projects involving hearing devices and rehabilitation. Disclosure: Nothing to disclose. If you have any technical questions or problems related to this course, please contact AudiologyOnline toll free at 800-753-2160 To Top
