'Db spl' diaporamas de présentation

998 views • 85 slides

818 views • 69 slides

State Tech Training Spring 2014

805 views • 62 slides

How to choose a good headphone? Presenter: Steve

679 views • 57 slides

The perception of sound

The perception of sound. Nisheeth 20 th Feb 2019. Review: the visual pathway. Pathway begins at the physical apparatus of the eye Works its way through connecting nerves Lateral geniculate nucleus (LGN) is an important junction Terminates in primary visual cortex.

556 views • 50 slides

Andrei Temchin

Shyamla Narayan. Alberto Recio. Ed Overstreet. Andrei Temchin. Burt Evans. Laboratory for Hearing Biology (~1996). Laboratory for Hearing Biology (today). Luis Robles. Jon Siegel. Andrei Temchin. Yun-Hui Fan. Qin Gong. Yi-Bo Fan.

804 views • 42 slides

Psychophysics of the basic sound dimensions / Loudness

Psychophysics of the basic sound dimensions / Loudness. Perfecto Herrera. Physical and perceptual features of sounds. Waveform amplitude -> Loudness (the larger, the louder) Waveform period -> Pitch (the longer, the lower) Waveform shape -> Timbre

588 views • 30 slides

Logarithms and Decibels

Logarithms and Decibels. The Decibel. Named for Alexander Graham Bell. Originally used to measure power losses in telephone lines. A Bel is the common log of the ratio of two power levels. A decibel is one-tenth of a bel.

931 views • 27 slides

Hearing Science

Hearing Science. HSLS 253. Chapter 10 Auditory Sensitivity. psychophysics (pp 275-279) auditory sensitivity to frequency auditory sensitivity to level durations temporal integration differential sensitivity frequency discrimination intensity discrimination

666 views • 23 slides

Quantization

Quantization. Outline. Introduction Uniform amplitude quantization Audio Quantization error (noise) analysis Noise immunity in communication systems Conclusion Digital vs. analog audio (optional). Resolution. Human eyes Sample received light on 2-D grid

689 views • 19 slides

Quantization

Quantization. Foveation grid: point of focus in the middle. Resolution. Human eyes Sample received light on 2-D grid Photoreceptor density in retina falls off exponentially away from fovea (point of focus) Respond logarithmically to intensity (amplitude) of light Human ears

409 views • 16 slides

Applied Psychoacoustics Lecture 2: Basic Measurement Methods, Signal Detection Theory

Applied Psychoacoustics Lecture 2: Basic Measurement Methods, Signal Detection Theory. Jonas Braasch. First Example. Measurement of the absolute threshold of hearing (ATH).

295 views • 11 slides