Room Acoustics

absolute value absorbent absorption coefficient according to Equation acoustical feedback Acustica angular frequency assume attenuation attenuation constant audience average calculated ceiling characteristic characteristic impedance completely components concert hall coordinate corresponding decay curve decay process delay denoted depends diffuse sound field direct sound directional distribution distance effect eigenfrequencies eigenvalues electroacoustical energy density formula frequency range Furthermore geometrical hence impulse response incident sound increase listeners loudspeaker maximum measurements method microphone mirror sources normal obtain particle velocity phase angle plane wave porous layer pressure amplitude quantity rectangular room reflecting wall reflection factor resonance result reverberation chamber rigid wall room acoustics Section solid angle sound energy sound incidence sound particle sound pressure sound pressure level sound propagation sound rays sound signal sound wave speech intelligibility standing wave surface transmission function vibration volume wall impedance wall reflections wavelength Рос