HESP 407 Spring 2000 HW Due 05/03/00

 

Name : __________________________________                SSN: ___________________

 

Convert the following dB HL values to the appropriate dB SPL using the Table 9.1 in your book:

 

For TDH- 49/50 headphones

 

1.   0 dB HL at 500 Hz

 

2.  60 dB HL at 1000 Hz

 

3. 10 dB HL at 2000 Hz

 

4. 25 dB HL at 4000 Hz

 

5. –5 dB HL at 8000 Hz

 

For ER-3A insert earphones

 

6.   0 dB HL at 500 Hz

 

7.  60 dB HL at 1000 Hz

 

8. 10 dB HL at 2000 Hz

 

9. 25 dB HL at 4000 Hz

 

10. –5 dB HL at 8000 Hz