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Introduction to Multimedia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction to Multimedia ,[object Object],AUDIO

What is SOUND? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

7.1 The Power of Sound ,[object Object],[object Object],Something vibrates in the air Waves of pressure Ear drums will translate these changes in wave Forms as sound

Example of Waveforms Piano Pan flute Snare drum

Sound ,[object Object],[object Object]

Characteristic of Sound Waves ,[object Object],[object Object],[object Object]

Frequency ,[object Object],[object Object],[object Object],[object Object],[object Object],Low pitch High pitch

Amplitude ,[object Object],[object Object],[object Object],Quiet Loud Low amplitude High Amplitude

Characteristic of Sound Waves distance along wave Cycle Time for one cycle Amplitude wavelength

7.1 The Power of Sound ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Audio Recording Software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MACINTOSH WINDOWS

Basic Sound Recorder Sound conversion Basic Effects

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Analogue to Digital Audio

Capture & Playback of Digital Audio Air pressure variations Captured via microphone Air pressure variations ADC Signal is converted into binary (discrete form) 0101001101 0110101111 Analogue to Digital Converter DAC Converts back into voltage Digital to Analogue Converter

7.2 Digital Audio ,[object Object],[object Object],High Sampling Rate Low Sampling Rate Samples stored in digital form waveform

7.2 Digital Audio ,[object Object],[object Object],[object Object],[object Object],Low Sampling Rate High Sampling Rate

Recording Audio Files ,[object Object],[object Object],[object Object],[object Object]

Recording Audio Files ,[object Object],[object Object],[object Object],[object Object],[object Object],Audio cable Line in port on the pc

7.2 Digital Audio ,[object Object],[object Object],[object Object],[object Object],Sampling Rate Sample size

7.2 Digital Audio ,[object Object],[object Object],[object Object],[object Object],[object Object]

7.2 Digital Audio ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

7.3 Midi Audio ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

7.3 Midi Audio: Requirements ,[object Object],[object Object],[object Object],[object Object]

7.3 Midi Keyboard ,[object Object],[object Object],[object Object]

7.3 Midi Sequencer ,[object Object],[object Object],[object Object]

7.3 Midi Audio Facts ,[object Object],[object Object],[object Object]

Audio File Formats ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

7.4 MIDI versus Digital Audio ,[object Object],[object Object],[object Object],[object Object],[object Object]

7.4 MIDI versus Digital Audio ,[object Object],[object Object],[object Object],[object Object]

7.5 Factors considered before adding Sound to MM Project ,[object Object],[object Object],[object Object],[object Object]

Advantages & Disadvantages of Using Audio ,[object Object],[object Object],[object Object],[object Object],[object Object]

Advantages & Disadvantages of Using Audio ,[object Object],[object Object],[object Object],[object Object]

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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