Auditory Discrimination of Pure and Complex Waveforms Combined With Vibrotactile Feedback
- Gareth W. Young, University College Cork
- David Murphy, University College Cork
- Jeffrey Weeter, University College Cork
- Here we present an experiment that investigates the application of extra-sensory vibrotactile stimulus of pure and complex waveforms in audio frequency difference detection. Vibrotactile information was expected to have some influence upon the frequency discrimination of audio Just Noticeable Difference (JND) tests. The experiment explored the effects of vibrotactile feedback in combination with audio frequency discrimination for the same f0 of 160 Hz. The potential of a correctly identified result for two separate groups were measured and then compared. Group A subjects were given an audio only JND test via headphones, whilst group B were given the same test with additional vibrotactile stimulus delivered via the Audio-tactile Glove. We have concluded from our experiments that vibrotactile feedback can affect our ability to perceive changes in pitch when presented asynchronously at f0.
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