This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: A microphone's output level is rated at -80db. If 0db = 1 volt, what is the nominal output voltage? Sound level 1 Sound level 2 Decibels +++++++++++++++++++++++++++++++++++++ 10 100 100-20 1 .01 Name ___________________ Date _____________ .1 40 Name ___________________ Date _____________ Lab 2 Narrative- turn in on 2/5 Open the file: 01_Decibels.pdf (or .doc), read it and follow the instructions. Please answer the questions from the lab on this sheet: Question 1. What is the relationship between the sign of the decibel measure and the ratio? Question 2. What is the level in DB of a1 compared to the 1 volt reference in a2? Question 3. What is the level in DB of a1 compared to the 1 volt reference in a2? Question 4. What were the results for Test1? Question 5. What were the results for Test2? Question 6. The decibel measures should be similar for the two tests, but the voltage levels should be quite different. Why?...
View Full Document
- Spring '10
- Sound pressure, Date _____________, decibels