A sample rate of 44.1 kHz is almost always used, because this is also used for CD audio, the main source used for creating MP3 files. A greater variety of bit rates are used on the Internet. The rate of 128 kbit/s is commonly used, at a compression ratio of 11:1, offering adequate audio quality in a relatively small space. As Internet bandwidth availability and hard drive sizes have increased, higher bit rates up to 320 kbit/s are widespread. COUNT 5
QSN1 What sampling rate is used for CD audio? ANS1 44.1 kHz QSN2 What is the main source used for creating MP3 files? ANS2 CD audio QSN3 Where can one find a greater variety of bit rates? ANS3 the Internet QSN4 The common bit rate on the internet is 128 kbit/s using which compression ratio? ANS4 11:1 QSN5 As technology advances, what is another higher bit rate that is beginning to spread? ANS5 320 kbit/s