Properties of Sound. Pitch Loudness Speed in Various Media.

15

Click here to load reader

Transcript of Properties of Sound. Pitch Loudness Speed in Various Media.

Page 1: Properties of Sound. Pitch Loudness Speed in Various Media.

Properties of Sound

Page 2: Properties of Sound. Pitch Loudness Speed in Various Media.

•Pitch

•Loudness

•Speed in Various Media

Page 3: Properties of Sound. Pitch Loudness Speed in Various Media.

Pitch, or Tone

Pitch is directly related to frequency.

Range of Human Hearing

20 Hz – 20,000 Hz

Sonic Range

Page 4: Properties of Sound. Pitch Loudness Speed in Various Media.

InfrasonicBelow 20 Hz

Above 20,000 Hz

Ultrasonic

Page 5: Properties of Sound. Pitch Loudness Speed in Various Media.

Loudness

The human ear is not a linear device. It is logarithmic.

Page 6: Properties of Sound. Pitch Loudness Speed in Various Media.

Log Graph

Page 7: Properties of Sound. Pitch Loudness Speed in Various Media.

Decibels

The unit of loudness is the decibel, 1/10 of a Bel (named after Alexander Graham Bell)

Page 8: Properties of Sound. Pitch Loudness Speed in Various Media.

Logarithmic Hearing

The decibel scale is logarithmic, which means that an increase of

10 dB is a 10 time increase in intensity.

Page 9: Properties of Sound. Pitch Loudness Speed in Various Media.

Decibel Equation

10logI

Io

Page 10: Properties of Sound. Pitch Loudness Speed in Various Media.

Intensity

IP

r4 2

Page 11: Properties of Sound. Pitch Loudness Speed in Various Media.

Increase in Intensity

LNM

OQP

1010

dB dBHigh Low

Intensity Increase

Page 12: Properties of Sound. Pitch Loudness Speed in Various Media.

Speed of Sound in Media

The speed of sound is directly related to the elasticity of a

medium.The speed of sound in a medium

is indirectly related to the density of the medium.

Page 13: Properties of Sound. Pitch Loudness Speed in Various Media.

Graphic

Page 14: Properties of Sound. Pitch Loudness Speed in Various Media.

General Rule for Speed of Sound in Media

GasSlowest

Liquid Medium

Solid Fastest

Page 15: Properties of Sound. Pitch Loudness Speed in Various Media.

Speed of Sound in Air

v Tms

msoC

330 0 6.


An introduction to OR-OSHA’s rule for controlling noise in ...(1) Frequency, or pitch, is measured as sound vibrations per second or _____. (2) Intensity, or loudness, is measured

An introduction to OR-OSHA’s rule for controlling noise in ...(1) Frequency, or pitch, is measured as sound vibrations per second or _____. (2) Intensity, or loudness, is measured

PROVIEW...to pitch, decay time, loudness, and curve (intensity) of the pressure sensor, you can completely alter the sound by, for example, changing the head material parameter …

PROVIEW...to pitch, decay time, loudness, and curve (intensity) of the pressure sensor, you can completely alter the sound by, for example, changing the head material parameter …

HEARING. SOUND Sound is vibrations of molecules Amplitude, wavelength, and purity affect qualities of loudness, pitch, and timbre.

HEARING. SOUND Sound is vibrations of molecules Amplitude, wavelength, and purity affect qualities of loudness, pitch, and timbre.

NOISE 2 What is Sound? Hertz (Hz) – Frequency a high or low pitch Decibels (dB) – The loudness of the sound.

NOISE 2 What is Sound? Hertz (Hz) – Frequency a high or low pitch Decibels (dB) – The loudness of the sound.

Loudness and Pitch - DIYAudioProjects...or if P stands for the pitch level of a tone of loudness level 40, then Frequency level, F, is defined in a similar manner; F = log2f—log216.35.

Loudness and Pitch - DIYAudioProjects...or if P stands for the pitch level of a tone of loudness level 40, then Frequency level, F, is defined in a similar manner; F = log2f—log216.35.

Sound - East Troy Middle School€¦ · Loudness Loudness is amplitude of sound wave. Human ear is fearfully and wonderfully made. – Can detect a change in pressure of 1 billionth

Sound - East Troy Middle School€¦ · Loudness Loudness is amplitude of sound wave. Human ear is fearfully and wonderfully made. – Can detect a change in pressure of 1 billionth

What causes sound? · Word Meaning intensity The loudness or volume of a sound. pitch How high or low a note sounds. vibrate Move backwards and forwards. amplitude Half the height

What causes sound? · Word Meaning intensity The loudness or volume of a sound. pitch How high or low a note sounds. vibrate Move backwards and forwards. amplitude Half the height

1 Sound, Pitch, Loudness, Doppler Effect

1 Sound, Pitch, Loudness, Doppler Effect

Articulatory-Acoustic-Auditory Phonetics · acoustic phonetics auditory phonetics fundemental frequency (Hz) pitch (how high or low do we perceive a sound) intensity (dB) loudness

Articulatory-Acoustic-Auditory Phonetics · acoustic phonetics auditory phonetics fundemental frequency (Hz) pitch (how high or low do we perceive a sound) intensity (dB) loudness

Multimedia Communications and Human Auditory System and ...sunny.staff.gunadarma.ac.id/.../002_MCB_Human...Auditory_Percepti… · Loudness and Pitch More sensitive to loudness at

Multimedia Communications and Human Auditory System and ...sunny.staff.gunadarma.ac.id/.../002_MCB_Human...Auditory_Percepti… · Loudness and Pitch More sensitive to loudness at

Sound. Characteristics of Sound Intensity of Sound: Decibels The Ear and Its Response; Loudness Sources of Sound: Vibrating Strings and Air Columns Quality.

Sound. Characteristics of Sound Intensity of Sound: Decibels The Ear and Its Response; Loudness Sources of Sound: Vibrating Strings and Air Columns Quality.

Sound Pitch Loudness Beats Doppler Effect Physics Ms. Shaver.

Sound Pitch Loudness Beats Doppler Effect Physics Ms. Shaver.

Week 2 Sound and Hearing Mark Huckvale · Timbre “Quality of sound” Loudness, Pitch and Timbre are the three basic dimensions of our perception of sounds. 12 . Loudness 13 . Pressure

Week 2 Sound and Hearing Mark Huckvale · Timbre “Quality of sound” Loudness, Pitch and Timbre are the three basic dimensions of our perception of sounds. 12 . Loudness 13 . Pressure

Short-term loudness metering Foreword3 Human loudness perception While loudness models for arbitrary sound types and for arbitrary sound levels are very complicated, ITU-R work has

Short-term loudness metering Foreword3 Human loudness perception While loudness models for arbitrary sound types and for arbitrary sound levels are very complicated, ITU-R work has

Lecture 7 Limits of hearing, critical bands Sound localization Hearing & vision compared Loudness of a pure tone Pitch of a pure tone Instructor:

Lecture 7 Limits of hearing, critical bands Sound localization Hearing & vision compared Loudness of a pure tone Pitch of a pure tone Instructor:

Chapter 12 Section 1 Sound Waves Sound Waves · Chapter 12 Sound Intensity, continued • The intensity sound = loudness. • loudness is approximately logarithmic in the human ear.

Chapter 12 Section 1 Sound Waves Sound Waves · Chapter 12 Sound Intensity, continued • The intensity sound = loudness. • loudness is approximately logarithmic in the human ear.

Loudness, K -weighted, relative to Full Scale ( or LKFS/LUFS) “ITU … · 2017. 11. 1. · Ⅰ. Loudness (LKFS) Summary. 2.Loudness Standards. IEC 61672-1 - Electroacoustics Sound

Loudness, K -weighted, relative to Full Scale ( or LKFS/LUFS) “ITU … · 2017. 11. 1. · Ⅰ. Loudness (LKFS) Summary. 2.Loudness Standards. IEC 61672-1 - Electroacoustics Sound

FocusOn · Sound perception in normal hearing Our sense of hearing allows us to discern the loudness, pitch and timbre of a sound, as well as to localise it. What we perceive as loudness,

FocusOn · Sound perception in normal hearing Our sense of hearing allows us to discern the loudness, pitch and timbre of a sound, as well as to localise it. What we perceive as loudness,

Sound Vocabulary Terms Objective (2.1):Describe the factors that affect the pitch and loudness of sound produced by vibrating objects.(2.3) Describe how.

Sound Vocabulary Terms Objective (2.1):Describe the factors that affect the pitch and loudness of sound produced by vibrating objects.(2.3) Describe how.

The Human Ear ⎯ Hearing, Sound Intens ity and Loudness Levels

The Human Ear ⎯ Hearing, Sound Intens ity and Loudness Levels