05 Audition - g i This bounces the “hair cells” against...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
05 Audition I. Physics of Sound a. Amplitude (loudness) – how dense and rarefied the air gets in a sound wave b. Frequency (pitch) number of oscillations per second (Hertz or Hz) c. Phase (quality) – the way that sound waves build on each other to give the sound its quality i. Phase Shifts: II. The Ear a. b. The shape of the ear is like an amplifier (trapping lots of air funneling into a compact space) c. Inner ear bones further amplify the signal through the use of leverage to exaggerate movements d. The cochlea transduces that mechanical energy into neuronal energy
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
e. f. The auditory nerve detects pitch by matching excitation rate to the frequency (Frequency Theory; 20 – 1000 Hz) and by where it vibrates on the nerve (Volley Theory; 1 – 22 KHz)
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: g. i. This bounces the “hair cells” against the basier membrane III. Localization of Sound a. Temporal Differences – sound arrives at one ear before the other i. Works well for lower frequencies, which tend to wrap around the head b. Amplitude Differences – sound arrives with greater amplitude in one ear over the other i. Works well for higher frequencies, which tend to be blocked by the head ii. iii. c. d. We can tell where a sound is coming from also by moving and relocating the basic direction of the source of the sound e. The penne (back of the ear) is shaped to filter out higher frequencies from the back of the ear...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern