PHYS 1240 Lecture Notes - Lecture 4: Compact Disc, Hertz
11 Sep 2018
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The more accurate your digital recording of sound, the more space the file consumes. Audacity- a program where you can look at sound recordings and manipulate for free. From 0 to 2^16 or really from -32,768 to 32,768. Cd quality has 16-bit sound has a bit depth of 16 . Good audio recording quality is a sample rate of 96 khz or above. Dynamic range- ratio of strongest signal to weakest signal. 44,100 samples/s x 16 bits x 2 channels = 1,411,200 bits = 176,400 bytes. A cd holds about 74 minutes so about 783 mbytes or 783,000,000 bytes.
