1 / 7
Télécharger la présentation

Auditory Masking: Types and Effects on Sound Perception

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CHAPTER 11 MASKING

  2. MASKING The interference with the perception of one sound produced by the presence of a second sound Masking

  3. Masking Varieties: • EARS: Ipsilateral = Masker & Signal in same ear vs. Contralateral = M in one, S in other • TIMING: Simultaneous = M & S on at same time vs. Forward = M precedes S vs. Backward = M follows S Masking

  4. Masking

  5. Critical Bands: Fletcher Masking

  6. Masking Level Difference (MLD) Masker and Signal in Each Ear Test Threshold twice: • once with identical signals in each ear • once with 180 degrees out of phase R to L Binaural

  7. Masking Level Difference (MLD) (cont’d) • Signal is easier to detect with the interaural phase difference • Shift in threshold is about 12 to 15 dB at low frequencies. • Reflects processing in the auditory brainstem) Binaural

More Related