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. A discussion of the value of an auditory test battery for listeners with clinically defined normal hearing is included in the TBAC Manual, together with a brief history of the development of this battery.
For more information on the National Auditory Capabilities Database (NACD) go to our faq page.
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.
The speech tests are:
7) Temporal-order discrimination for syllables.
8) Syllable recognition.
TBAC Manual: Instructions for use of the TBAC and discussion of its development and purpose.
FAQs regarding the TBAC.
Example of TBAC Scores for an individual listener.
