B. inggris

Pertanyaan

Sound Recordings and Reproducing


(General statement to position the reader)      Sound recordings and reproductions are two separate process used to record, store, and play back sound. Sound recordings use microphones to pick up sound waves in the air. The pressure changes associated with the waves are converted into electrical signals. Which can be coded and stored for future access. Sound reproduction, or playback, uses additional device to retrieve the stored information and covert it back into electrical signal. The signals are then sent to a loudspeaker, which converts them back into sound.


(A sequenced explanation of why or how something occurs)  to record sound, a microphone changes the acoustic energy of sound waves in the air into electrical signal. Inside a microphone in a magnetic field. When a sound wave reaches the microphone, the air pressure changes around the diaphragm, causing the diaphragm to move. This movement within a magnetic field creates an electrical signal. The signal is then transferred to a storage medium, such as a cassette tape, a compact disc (CD), or a phonograph record.


            To reproduce, a playing device- such as a CD player, cassette deck, or phonograph accesses the stored data. The playing device reads the data and converts the information back into electric energy. The electrical signal is sent to a loudspeaker, which has a diaphragm housed in a magnetic filed in much the same way as a microphone’s diaphragm is housed. The electrical signal creates a disturbance in the magnetic field. These resultant variations in the magnetic field cause the diaphragm to move. As the diaphragm moves, it pushes out and pulls in, creating changes in air pressure to recreate the sound that was originally recorded.


(Closing)          Sound recordings and reproduction form the foundation of many industries, including entertainment, communications, and multimedia businesses. Recording and reproduction of sound allow people to play their favorite music, whether it was recorded yesterday or many years ago. Radio networks rely on sound recording and reproduction for storing news and other types of programming. Television and motion pictures combine images with music, speech, and sound effect to provide the viewer with an enriched experience. Computer programs, multimedia software, and video games also use sound to make programs more engaging.

1) which of these is the purpose of the neks?
a)to describe the whay things are
b)to explain the processes involved in, the formation or working of sociocultural phonomena

2) how many action verbs are there used in the text? what are they

3) are there any abstract words used in the teks? what are they

4) how many sentences are written in passive form? write them here

5) how many technical languages are there in the texs? write them here

tolong kak. trimakasih

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