Catalogue Number

Description of Test

200

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Acceptable Noise Level Test (A.N.L.). The test has an 85% accuracy in identifying those individuals who will accept and wear hearing aids. This has significant potential for improving hearing aid dispensing decisions and for counseling. The procedure was developed to quantify the amount of background noise, a listener is willing to accept while listening to speech. A.N.L. is a measure of willingness to listen to speech in the presence of background noise. This willingness to listen to noise may not be closely related to the ability to understand speech in noise. The A.N.L. is calculated as the difference between MCL for speech and the highest level of background noise the listener is willing to accept. A.N.L. = MCL-BNL (dB) The lower the number in dB, the better the result.This test can be performed in two-three minutes using a two channel audiometer ,with a mixing network. The test was developed at the University of Tennessee, Knoxville, Dept. Aud. and Sp. Path .by Anna K. Nabelek, Samuel B. Burchfield, Joanna W. Tampas, and Melinda C. Freyaldenhoven. The Arizona Travelogue on the left track was composed and recorded by CDI. This recording was used in the development of the ANL test . The left and right channel levels have been recorded with considerable precision ANL.

201

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The Spin Test was developed in 1977 by Kalikow D., Stevens, K., & Elliott, L. It was digitized, waveform edited and recorded on cassette in 1981, by Cosmos Distributing. This test was later revised by R. Bilger, Neutzel, Rabinowitz and Rzeckowski. Dept. of Sp.& Hearing Science U. of Illinois At Champagne Illinois 1984. Cosmos Distributing performed a physical editing of the tape to Obtain the list of 8 forms that Dr. Bilger’s work had established were equivalent in intelligibility and they standardized the test at a s/n ratio of +8 dB. We made this test commercially available in CD format in 1993. This test has been completely remastered in 2005 in a Vancouver film studio.

202

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Revised Spin Test Low –predictability practice, and L.P. sentences forms 1-4

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Revised Spin Test forms 1-8 (cat201, plus A.N.L. Test, (Cat. No.200)

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Revised Spin Test forms1-8, (cat.No.201), plus R. Spin Test Low-predictability(Cat.No.202)

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Spondee word lists ,NU 6 lists 1A-4A, inquiet, NU6 lists 1A-4A, left channel, competing sentences right channel

More difficult 25/50 words, (recorded half lists), Pascoe’s High Frequency word list (four randomizations), left channel speech babble right channel.W-22 word lists Left , right Channels

W-22 words courtesy of  Technisonics. Spondee words,NU-6  words in quiet ,courtesy of Dr. R.H. Wilson Ph’d  V.A. Mountain Home Tennessee .Competing sentences new speaker recorded by Cosmos Distributing.

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Modified Rhyme Test Forms A-F Left Channel, and Speech Babble on Right Channel

Modified Rhyme Test was originally recorded on cassette Left and Right Tracks in quiet. We re-recorded the test on CD using longer response and Adding speech babble on the right channel to improve the usefulness of the Test.

This  test was re-mastered to tight specifications for frequency response and further noise reduction was applied.

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Cafeteria Noise with many transients

The Cafeteria noise was recorded in a hospital cafeteria using stereo Microphones and an Ampex professional recorder.

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Six Talker complex two channels uncorrelated

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CUNY Nonsense syllable Test N.S.T. 11 subsets and four randomizations

CUNY N.S.T. was produced under license courtesy of Dr. H. Levitt ,Ph;d C.U.N.Y.

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This Test was originally recorded on analogue reel-to-reel  tape some 29 years ago,( as of 2006.).  We decided to make a new direct digital  recording with a  male speaker with excellent diction and no discernable regional accent. There has been considerable interest in fitting hearing impaired persons having steeply sloping high frequency hearing loss after 1.5KHz. or 2.0Khz. with open fit B.T.E. hearing aids .Many of these  persons do not appreciate the degree of communication problems they are having. The California Consonant Test will provide a more realistic assessment of their speech recognition abilities, than the W-22 or NU-6 word lists. To further improve the California Consonant Recording we provided the same Test over again but with 0.3 second reverberation on the left channel and restaurant noise on the right channel. This will provide the examiner with some additional testing options.

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NU 6 Lists 1A – 4A  Female speaker without carrier phrase “You Will Say” Left channel, Right channel.