This preview shows page 1. Sign up to view the full content.
Unformatted text preview: A band reject filter with cutoff frequencies of 1000 and 2000 Hz and frequency rejection slopes of 96 dB/octave. 7.8. A white noise with a spectrum level of 50 dB SPL is passed through a filter having a bandwidth of 2000 Hz. What is the level at the output of the filter. 7.9. A white noise with a spectrum level of 60 dB SPL is passed through a set of octave band filters with center frequencies of 500, 1000, 2000, and 4000 Hz. What is the predicted output of each of the filters? 7.10. A white noise is passed through a one-third-octave filter with a center frequency of 1000 Hz. The level at the output of the filter is 100 dB SPL. What is the spectrum level of the noise? 7.11. A white noise lowpass filtered at 10 kHz has an overall level of 70 dB SPL. What is the predicted level if the noise is instead filtered at 5 kHz?...
View Full Document
This document was uploaded on 10/31/2011 for the course COM DIS 311 at UMass (Amherst).
- Fall '11