Homework_5

Homework_5 - Homework 5 Due March 29, 2011 1. Aliasing is a...

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Due March 29, 2011 1. Aliasing is a distortion affected by: a ) Sampling frequency not high enough b) Number of bits not high enough c) Neither 2. Assume that a 4 min song is sampled at standard CD 44.1 kHz sampling frequency defined by Nyquist Theorem. Assume that the sample is represented by 16 bits and the song is recorded to two channels. How long would it take to download the song over 112 Kbps wireless modem? a ) 50.4 minutes b) 1 hour c) 2 hours and 30 sec 3. The bit rate for digital telephony is: a) 64 kbps b) 8 kbps 4.  A digital camera’s color gamut is inversely proportional to the number of bits  assigned per pixel. a) True                       b) False    5. How much storage is needed (in kilo bytes (KB)) for a photo with 128x128 pixels if  the          photo has  64 color levels for each: R,G, B? a
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Homework_5 - Homework 5 Due March 29, 2011 1. Aliasing is a...

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