CD 30 ÷ 520
16
Center C Center D
Octave band center frequency [Hz]
Sound pressure level [dB(A)]
Audibility limits of
continuous white
sound
Octave band center frequency [Hz]
Sound pressure level [dB(A)]
Audibility limits of
continuous white
sound
CD65 Average sound pressure level on surface
Octave band center frequency [Hz]
Sound pressure level [dB(A)]
Audibility limits of
continuous white
sound