Malaria Woodchips Sound Recording Reproduction Tsunami paper product forest free Playback loudspeaker additional devices Sea wave ocean floor earthquake eruption Computer instruction CPU Microphones sound waves signals action d into tored B Text Modelling 1 Look at the picture below the answer the following questions 1 Have you ever visited that place What is it 2 What are they doing What is the man listening What is the woman doing 3 What kinds of devices are there in the picture 10 x f 5 the gnals as a data ferent Queque 7 e two direc bund ers is SOCIAL FUNCTION To explain the processes involved in the formation or working of natural or sociocultural phenomena i d nfer from ween reped f the ekers GENERIC STRUCTURE A general statement to position the reader A sequenced explana tion of why or how something occurs is ne aas Sua h d ISI cular coups Sound Recording Session Sound recording and reproduction are two sepa rate processes used to record store and play back sounds Sound recording uses 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 devices to retrieve the stored information and con vert it back into electrical signals The signals are then sent to a loudspeaker which converts them back into sound To record sound a microphone changes the acous tic energy of sound waves in the air into electrical signals Inside a microphone is a thin flat metallic surface called a diaphragm that is suspended in a magnetic field When a sound wave reaches the f the 77 Unit 2 This Is The Process

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