Acoustics Basics is ideal for sound engineers, media professionals and audiophiles. The app includes a variety of tables, equations, tips and notes. 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

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