By keeping Directv I saved $120 and was given $200 plus a $20 credit. Here is how I look at it. My service for the next year will cost $768, but I can subtract out the $120 ETF, $200 Visa card and the $20 credit meaning my cost is $428 for 12 months or about $35.66 per month.ere is how I look at it. My service for the next year will cost $768, but I can subtract out the $120 ETF, $200 Visa card and the $20 credit meaning my cost is $428 for 12 months or about $35.66 per month.
See reference 1 for a scale of dB intensities. Conversation is listed at ~60 dB. normal talking is usually between 50-60 dB and yelling can be up around 80 dB's. Voice Decibel. dB is a measure of relative magnitude. dBA is a measure of sound volume relative to a reference audio level.
When you notice a difference between loud sounds and quiet ones, your ears are perceiving changes in sound pressure level. Intensity (or volume) is measured in decibels (dB). Zero (0) dB is the softest sound that can be heard. Normal conversation is around 40dB to 60dB, a whisper around 30dB.A rock concert can average between 110 and 120 dB.hen you notice a difference between loud sounds and quiet ones, your ears are perceiving changes in sound pressure level. Intensity (or volume) is measured in decibels (dB). Zero (0) dB is the softest sound that can be heard. Normal conversation is around 40dB to 60dB, a whisper around 30dB.