APFEL, ROBERT E.
Table of Contents
THE GREAT DIVIDE
Godly voices
Light and sound - and never the twain...?
WHAT YOU PROBABLY KNOW ABOUT SOUND
How fast does sound travel?
Do high pitched sounds travel at a different speed than low pitched sounds?
How fast and far do sound waves travel in different media?
What do bats and porpoises have in common (from an
acoustical point of view)?
How, in fact, do porpoises & bats discriminate among the different objects in their "field of view"?
A brief summary
Explicit relationships between frequency, f, and wavelengh
YOUR HERARIN MECHANISM:
Some implications for designing for good acoustics
Tuned to a babys cry
Soft and low
Speak clearly
Missing tones
Turn down the volume
Going flat
From whence does it come?
The firstest with the mostest
Lateral sound and spatial separation
Humans respond to change ( or what is a decibel )
Sound out-of-doors (or in open plan spaces)
The falling off of sound with increased distance from a source?
Acoustic Perfume
MAKING CHOICES
The carpenter or the doctor
Cocktail Party effect
ACOUSTICAL SPACES
Rooms in which we desire to enhance the reverberant sound
Case study: Philharmonic Hall
Rooms for speech
Absorption
Mother, its a hyperbola
A caveat
Criteria for acoustics in music spaces - destroying some myths
Acoustical Intimacy
Optimal reverberation times
Warmth
Case study: Sala de Conciertos Nezahualcoyotyl
The room as a musical instrument
Concert hall design - some bits and pieces
Voice of God effect
Curved surfaces - thec difference between sound and light
Case study: Kresge Hall
The multipurpose hall
Case study: Teatro Y Centro De Arte
Sound amplification systems
Case study: Sweeney Chapel, Christian
Theological Seminary
