Test of Basic Auditory Capabilities,
Modification 4 (TBAC-4)
And the National Auditory Capabilities Database (NACD)
What is the TBAC-4?
The TBAC-4 is the most recent version of a battery of auditory tests that has been under development since the early 1980s. It includes six tests of auditory discrimination using single tones or groups of tones, and two tests using speech sounds. (See brief discussion of the potential value of an auditory test battery for listeners with clinically defined normal hearing.)
The tone-based tests are:
1) Single-tone frequency discrimination.
2) Single-tone intensity discrimination.
3) Single-tone duration discrimination.
4) Pulse-train discrimination (rhythm).
5) Embedded tone detection (word-length tonal sequences).
6) Temporal-order discrimination for tones.
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