monaural low redundancy

Auditory Processing Disorder Testing

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It is recommended that audiologists use established, reliable tests with both verbal and non-verbal stimuli that assess different auditory processes. Auditory Processing Disorder Tests are often broken down into four categories. The categories are 1) DICHOTIC LISTENING for binaural integration and separation, 2) TEMPORAL PROCESSING for auditory pattern temporal ordering-APTO and temporal resolution), 3) MONAURAL LOW-REDUNDANCY (monaural separation closure-MSC), and 4) BINAURAL INTERACTION. Auditec sells tests for each of these categories.

DICHOTIC LISTENING: Pediatric Speech Intelligibility (ages 3-6); Competing Sentences (ages 5 and up); Dichotic Digits (ages 7 and up); Synthetic Sentence Identification-Contralateral Competing Message (ages 11 and up)

TEMPORAL TESTS: Random Gap Detection Test (non-verbal stimuli for ages 5 and up); Gaps In Noise (non-verbal stimuli for ages 7 and up); Pitch Pattern (non-verbal stimuli for ages 8 and up); Duration Pattern Sequence (non-verbal stimuli for ages 11 and up)

MONAURAL LOW-REDUNDANCY: Pediatric Speech Intelligibility (ages 3-6); Time Compressed Sentence Test (ages 6 and up); Time Compressed Word Lists (ages 11 and up); Low Pass Filtered Tests (ages 11 and up); Synthetic Sentence Identification – Ipsilateral Competing Message (ages 11 and up)

BINAURAL INTERACTION: Spondee Binaural Fusion (appropriate for children and adults); Rapid Alternating Speech (appropriate for children and adults); Masking Level Difference (appropriate for children and adults)

cUSTOMAuditec allows audiologists to design their own custom auditory processing disorder battery with any of the above tests. You can determine which tests will be used to examine based on your patient’s needs and age range. Once you have compiled a list of your test selections, email it along with your state/country to auditecinfo@auditec.com for an exact quote with ordering instructions.

You can receive several popular tests at a discounted price by selecting the APD Battery. The APD Battery (CD170-9) includes Gaps In Noise (GIN), Random Gap Detection Test-Standard (RGDT), Pitch (Frequency) Pattern Sequence – Musiek Version, Duration Pattern Sequence – Musiek Version, and Masking Level Difference-Tones.

I hope this information is helpful to you as you determine which auditory processing tests are right for you for your patients. If you want to learn more about auditory processing disorder assessment, Auditec recommends a book by Teri James called Assessment & Management of Central Auditory Processing Disorders (available on Amazon). You may also find these links helpful:

Monaural Low Redundancy Category

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The following items are usually categorized as “Monaural Low Redundancy” tests or contain some portion that is considered “Monaural Low Redundancy.” Click on the test name to learn more about the product.

⇒Didn’t find what you were looking for? Check this related category: AUDITORY PROCESSING DISORDER (APD).

⇒Need help figuring out what recording is right for your patients? We are happy to help! Email your questions to auditecinfo@auditec.com.

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NU-6 Time Compressed, 30% & 60%©

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The NU-6 Time Compressed Words, 30% & 60%© is an auditory processing disorder test in the category of monaural low redundancy. That is, the speech stimuli have been accelerated, but without a shift in pitch. For this product, the all four lists of NU-6 Form A words have been compressed at 30% and 60%. Administration time is 16-33 minutes.

The NU-6 Time Compressed Words, 30% & 60%© includes a) audio recording, and b) word list. This product does not include instructions. The normative data provided with the NU-6 Time Compressed was based on the W-22 Time Compressed. It is for ages 11 and up. It is assumed that purchasers of Auditec’s products are well trained in their use, purpose, and interpretation.

©COPYRIGHT NOTICE: Auditec’s materials are protected by copyright. Each product represents one license for up to two audiometers at one location. Sharing, uploading to servers, publishing to the internet, and all other forms of distribution are prohibited.

Available from Auditec, Inc. Use the “Buy Now” button below or call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping to contiguous US locations. INTERNATIONAL CUSTOMERS: Importers are responsible for duties and taxes. Auditec advises your organization to contact your government to estimate tax prior to ordering.

NU-6 Time Compressed Words, 30% & 60%© (CD Format); Item 129; Price $82.25 USD + S&H Buy Now Button

NU-6 Time Compressed Words, 30% & 60%© (USB Format); Item USB129; Price $88.25 USD + S&H Buy Now Button

⇒If age-specific normative data is needed for young children, consider purchasing the Time Compressed Sentence Test instead.

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NU-6 Low Pass Filter 750 Hz©

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The NU-6 Low Pass Filter at 750 Hz© is an auditory processing disorder test for adults. It is considered a monaural low-redundancy speech test (monaural separation closure-MSC) sensitive to brainstem and cortical lesions.

The NU-6 Low Pass Filter at 750 Hz© includes a) audio recording, and b) instructions and word list. The NU-6 at 750 Hz includes data for adults only. It would be reasonable to expect children over the age of eleven to test as well (or nearly as well) as adults.

©COPYRIGHT NOTICE: Auditec’s recordings are protected by copyright. Each product represents one license for up to two audiometers at one location. Sharing, uploading to servers, publishing to the internet, and all other forms of distribution are prohibited. Email questions regarding copyright to auditecinfo@auditec.com.

Available from Auditec,Inc. Use the “Buy Now” button below or call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. Free shipping is available to locations within the contiguous US. INTERNATIONAL CUSTOMERS: Importers are responsible for duties and taxes. Auditec advises your organization to contact your government to estimate tax prior to ordering.

NU-6 Low Pass Filter at 750 Hz© (CD Format); Item 169-7; Price $65.00 USD+S&H Buy Now Button

NU-6 Low Pass Filter at 750 Hz© (USB Format); Item USB169-7; Price $71.00 USD+S&H Buy Now Button

⇒Auditec sells a similar test called the NU-6 Low Pass Filter at 1000 Hz for children.

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Synthetic Sentence Identification-Contralateral Competing Message©

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The Synthetic Sentence Identification© (SSI) can be used to: a) test speech intelligibility, b) test central auditory function, and c) evaluate hearing aid performance. It is considered appropriate for ages 11 and up. The primary signal consists of ten synthetic sentences. The competition is a male talker reading a passage about Davy Crockett. This contralateral competition version has sentences on the left track (channel) and competition on the right. It is a dichotic test using binaural integration sensitive to cortical vs. brain stem lesions.

The Synthetic Sentence Identification© includes: a) audio test recording, b) instructions and score forms as printable pdf files. Normative data is included for hearing aid evaluation only. No normative data is included for the central auditory function; however, the audiologist can uncover useful insight by comparing the patient’s performance on the contralateral and ipsilateral presentations.

©COPYRIGHT NOTICE: Auditec’s recordings are protected by copyright. Each product represents one license for up to two audiometers at one location. Sharing, uploading to servers, publishing to the internet, and all other forms of distribution are prohibited. Email questions regarding copyright to auditecinfo@auditec.com.

Available from Auditec, Inc. Use the “Buy Now” button below or call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping within the contiguous US. INTERNATIONAL CUSTOMERS: Importers are responsible for duties and taxes. Auditec advises your organization to contact your government to estimate tax prior to ordering. 

Synthetic Sentence Identification- Contralateral Competing Message© (CD Format); Item 123; Price $104.75 USD + S&H*
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Synthetic Sentence Identification- Contralateral Competing Message© (USB Format); Item USB123; Price $110.75 USD + S&H*
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⇒Auditec also sells a Spanish Synthetic Sentence Identification – Contralateral Competing Message.

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Synthetic Sentence Identification-Ipsilateral Competing Message©

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The Synthetic Sentence Identification-Ipsilateral Competing Message© (SSI-ICM) can be used to test speech intelligibility or test central auditory function. It is considered appropriate for ages 11 and up. The primary signal consists of ten synthetic sentences. The competition is a male talker reading a passage. This ipsilateral competition version has sentences and competition recorded on one track (channel) at various signal-to-noise ratios (S/N). The message-to-competition (MCR) is mixed at -20, -10, 0, +10, -20, -10, 0, +10, 0, & 0 dB per set of 10. It is considered a monaural low-redundancy test (monaural separation closure-MSC) sensitive to low brainstem lesions. It is an auditory figure ground test. Administration time is approximately 22 minutes.

The Synthetic Sentence Identification-Ipsilateral Competing Competition© includes: a) audio test recording, b) instructions and score forms as printable pdf files. Normative data is included for hearing aid evaluation only. No normative data is included for the central auditory function; however, the audiologist can uncover useful insight by comparing the patient’s performance on the contralateral and ipsilateral presentations.

©COPYRIGHT NOTICE: Auditec’s recordings are protected by copyright. Each product represents one license for up to two audiometers at one location. Sharing, uploading to servers, publishing to the internet, and all other forms of distribution are prohibited. Email questions regarding copyright to auditecinfo@auditec.com.

Available from Auditec, Inc. Use the “Buy Now” button below or call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping within the contiguous US. INTERNATIONAL CUSTOMERS: Importers are responsible for duties and taxes. Auditec advises your organization to contact your government to estimate tax prior to ordering.

SSI Ipsilateral Competing Message© (CD Format); Item 136; Price $104.75 USD + S&H*
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SSI Ipsilateral Competing Message© (USB Format); Item USB136; Price $110.75 USD + S&H*
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⇒It may be unnecessary to purchase the ipsilateral version if you own the contralateral recording. An administrator with the contralateral recording can administer the test ipsilaterally by mixing the channels at various signal-to-noise ratios using a dual-channel audiometer.

⇒Auditec also sells a Spanish Synthetic Sentence Identification – Ipsilateral Competing Message.

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