| Autor: |
D R, Begault, E M, Wenzel |
| Rok vydání: |
1994 |
| Předmět: |
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| Zdroj: |
Journal of the Audio Engineering Society. Audio Engineering Society. 42(10) |
| ISSN: |
0004-7554 |
| Popis: |
A spatial auditory display for multiple speech communications was developed at NASA/Ames Research Center. Input is spatialized by the use of simplified head-related transfer functions, adapted for FIR filtering on Motorola 56001 digital signal processors. Hardware and firmware design implementations are overviewed for the initial prototype developed for NASA-Kennedy Space Center. An adaptive staircase method was used to determine intelligibility levels of four-letter call signs used by launch personnel at NASA against diotic speech babble. Spatial positions at 30 degrees azimuth increments were evaluated. The results from eight subjects showed a maximum intelligibility improvement of about 6-7 dB when the signal was spatialized to 60 or 90 degrees azimuth positions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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