What is tinnitus a sign of?

Related questions

1. What are examples of high frequency sounds?
2. Why are high frequency sounds lost first?
3. What is the best frequency response for a subwoofer?
4. What is a good Hz range for speakers?
5. Is it normal to hear quiet room ringing?
6. Why can I hear high frequency sounds?
7. Is tinnitus a sign of brain tumor?
8. At what frequency does the earth vibrate?
9. Is tinnitus a brain problem?
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Tags

1. #hissing
2. #subjective
3. #roaring
4. #ringing
5. #buzzing
6. #symptoms
7. #whistling
8. #tinnitus
9. #include
10. #noise
11. #continuous
12. #intermittent
13. #person