Audrey wants to send a sound file to Nico using email. The file is too large to attach to an email so Audrey decides to compress the file. She uses lossy compression to reduce the size of the sound file. (a) Describe how lossy compression reduces the size of the sound file. \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ [4] (b) Nico asks Audrey why she used lossy compression rather than lossless. (i) State one advantage Audrey could give of using lossy rather than lossless to compress the sound file. \_\_\_\_ \_\_\_\_ [1] (ii) State one disadvantage Nico could give of using lossy rather than lossless to compress the sound file. \_\_\_\_ \_\_\_\_ [1] (c) Audrey sometimes records MIDI files. (i) Explain what is meant by a MIDI file. \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ [4] (ii) MIDI uses serial data transmission. Explain two advantages of using serial transmission rather than parallel transmission. Advantage 1 \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_ Advantage 2 \_\_\_\_ \_\_\_\_ \_\_\_\_ \_\_\_\_

2019 - O/N - 0478/12 | Q5

0/11

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Audrey wants to send a sound file to Nico using email. Th...