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Unformatted text preview: Chapter 12 Auditory space: exists whenever there is sound ! Problem: The location of the sound is not contained in the vibrations of the cochlea!!!! The cochlea does not record which instrument played which sound! (perceptual organisation) Because the cochlea only gives information for the FEQUENCY ! i.e. learn this by heart: the cochlea is stimulated by the frequency and the place on the cochlea activated shows P I TCH AND T I MBER . Location cues: created by the way the sound interacts with the ears visual cues: they are located on the image on the RET INA. Binaural cues- azimuth Monaural cues- elevation Interaural time difference (azimuth) Spectral cue Interaural level difference (azimuth) H IG H FREQUENCY SOUNDS Note: better sound localization occurs with more damage to the sound waves source right in front of you ILD and LTD= ZERO Interaural time difference Interaural level difference Azimuth Azimuth Good for low frequency Good for H IG H FREQUENCY SOUNDS The more ITD the more the source is to the...
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- Fall '11