just some thoughts:
1) If the speech processor has an in-line input, using it would be more comfortable for the listeners then using headphones. Also, the test would be done in a more controlled way (better calibration, constant coupling of the sound source and processor)
2) With one implant only, the localization performance in terms of an externalization will be very, very limited. Even lateralization will be limited - correct guessing the right side would be already a success.
3) Training and adaptations are important. Let the listeners use the devices for at least few weeks and train them to the task.
4) For the hardware a simple surround sound interface (for 6 loudspeakers) or stereo interface (for headphones) is sufficient. You could use some speakers placed at different positions in the room and then run a loudspeaker identification task.
5) As in all CI test, expect huge variability - we use many repetitions to reduce this problem.
Massimo Grassi wrote:
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