Laura B
Chapter Summary: Our ears perceive sound at different intensities, which are measured by decibels. When we expose of ears to high decibels, the muscles in our ears fatigue and need time to heal. When we are consistently being exposed to high decibels, our hearing sensitivity diminishes. We also perceive different frequencies (or pitch) which are measured by hertz. The higher the pitch, the more hertz it has. This enables high pitches at low intensities to be heard over lower instruments playing with more intensity. In our heads, we hear ourselves differently then others hear us. Because of this, we should strive not to listen to ourselves or would could be singing louder then necessary. Sometimes, people have trouble matching pitches in a condition called diplacusis. This could be the common cause of someone who is unable to sing on pitch. Overall, our hearing is very precious and we should do all we can to preserve it. Once it's lost, it's lost.
Key Concept: Take care of your hearing, and don't try to hear yourself
Key Terms: decibel (dB), "threshold", "threshold of pain," frequency, hertz, tensor tympani, auditory fatigue, diplacusis, beats
Making Connections: Taking care of your ears is not something that I think of very much. There is a thrill that comes in going to concerts with loud music, as well as other places with loud noises. However, this chapter has helped me realize just how important is to take care of my hearing. It is just going to deteriorate through my life and not ever get better due to the way that I treat it. I should do all I can to keep my hearing for as long as I can.
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