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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
