What's New
- Fixed build issue
App Description
Acoustics Basics is ideal for sound engineers, media professionals and audiophiles. The app includes a variety of tables, equations, tips and notes.
Also, includes a list of acceptable noise/sound levels for indoors and outdoors for a variety of building structures and environments.
Table of Contents:
- Abatement and Distance from Source
- Acceptable Noise - dBA - Levels
- Adding Decibels
- Blade Dampers and Noise Generation
- Blade Pass Frequency - BPF
- Classification of Noise Reduction Silencers
- Comparing Noise Criteria
- Daily Noise Dose Level
- Decibel
- Decibel A, B and C
- Directivity Coefficient and Sound Attenuation
- Ducts - Noise Generation
- EPA Protective Noise Levels
- Fans and Noise Power Generation
- Floor Vibration
- Frequency Limits for Octave Bands
- Ldn - Day and Night Sound Level
- Leq - Equivalent Sound Level
- Ls - Sound Exposure Level
- Machines - Sound Level Reduction
- Maximum A-Weighted Sound Levels Allowed
- NC - Noise Criterion
- Noise Exposure - Permissible Level and Duration
- Outdoor Ambient Sound Levels
- PNC - Preferred Noise Criterion
- Propagation of Sound Indoors
- Propagation of Sound Outdoors
- RC - Room Criteria
- REL - Noise Recommended Exposure Limit
- Reverberation Time
- Room Absorption Characteristics
- Sound Absorption Coefficients
- Sound Attenuation
- Sound Attenuation due to End Reflection
- Sound Attenuation in Duct Elbows
- Sound Attenuation in Unlined Sheet-Metal Ducts
- Sound Frequency, Wavelength and Octave
- Sound Intensity
- Sound Power
- Sound Power, Intensity and Pressure
- Sound Pressure
- Sound Pressure - Recommended Maximum Levels in Rooms
- Sound Transmission Through Massive Walls or Floors
- Sound Transmission through Duct Walls
- Speed of Sound
- Speed of Sound in some materials
- Speed of Sound in Gases
- Speed of Sound in some common Liquids
- Speed of Sound in some common Solids
- Subjective Effect of Change in Sound Pressure Level
- Telephones in Noisy Areas
- Voice Level and Distance
* All Content is Searchable
* All Content is available offline (no need for WiFi or Internet Connection)
* Please send us any questions, comments or suggestions using our website
App Changes
- May 09, 2012 Price decrease: $1.99 -> $0.99
- May 30, 2012 Price increase: $0.99 -> $2.99
- June 04, 2012 Price decrease: $2.99 -> $1.99
- December 30, 2012 Price increase: $1.99 -> $3.99
- January 02, 2013 Price decrease: $3.99 -> $1.99
- January 20, 2013 Price decrease: $1.99 -> $0.99
- February 07, 2013 Price increase: $0.99 -> $1.99
- March 08, 2013 Price decrease: $1.99 -> FREE!
- March 11, 2013 Price increase: FREE! -> $1.99
- October 28, 2013 Price increase: $1.99 -> $4.99
- February 14, 2015 New version 1.1
- March 01, 2015 New version 2.0
- March 04, 2015 New version 2.1
- April 27, 2015 New version 2.3
- May 16, 2015 New version 2.4
- June 24, 2015 New version 2.5
- July 28, 2015 New version 2.6
- October 09, 2015 New version 2.7
- July 03, 2016 New version 3.0
- August 01, 2016 New version 3.1
- November 06, 2016 New version 3.3
- December 19, 2016 New version 3.4
- June 15, 2019 New version 3.7
- July 16, 2020 New version 3.9