Читать книгу Engineering Acoustics - Malcolm J. Crocker - Страница 152

Given three pure tones with the following frequencies and sound pressure levels: 100 Hz at 60 dB, 200 Hz at 70 dB, and 1000 Hz at 80 dB:

1 Calculate the total loudness in sones of these three pure tones.

2 Find the sound pressure level of a single 2000 Hz pure tone which has the same loudness as all the three pure tones combined.