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AUDIO (SOUND AND AUDIO PinClipart.com_wave-images-clip-art_969816…

- - - - Voice: Defined as talking
      - Music
      - Sound Effect: o Voice or Music; created by natural events like thunderclap
    - - Sound created by the vibration of an object, causes air surrounding it (medium) to vibrate.
      - Vibrating air causes human eardrum to vibrate, the brain interprets as sound.
      - Sound waves: variations of pressure in a medium (eg: air)
  - - - Amplitude: The "height" of a wave when viewed as a graph.
        
        The strength or power of a wave signal.
        
        Higher amplitudes are interpreted as a higher volume.
    - - Length of wave
      - Distance between any point on a wave , equivalent point on the next phase.
      - Distance between repeating units of a wave pattern
    - - Example: singing in a high-pitched voice forces the vocal chords to vibrate quickly
        
        The faster the sound source vibrates, the higher the frequency, the higher the pitch
        
        Measured in Hertz (Hz), or cycles per second.
        
        Frequency: Number of times the wavelength occurs in one second.
  - - - Number of bits used to represent a sample
    - - Mono or stereo
      - Sound channel
        
        Whether mono or stereo sound will affect the size of the file.
        
        Mono:sound will be playing from one channel, stereo means two channels.
        
        Stereo sound will require larger storage space than mono sound.
      - https://headsetzone-75.webself.net/file/si795915/Mono%20vs.%20Stereo-fi12326209.png
    - - defines number of samples per second (or per other unit) taken from a continuous signal to make a discrete signal.
        
        For time-domain signals, measured in hertz (Hz).
  - - - C = no. of channels (mono = 1, stereo = 2)
      - S = sampling rate in Hz (cycles per second)
      - T = Time (s)
      - B = bytes (1 for 8 bits, 2 for 16 bits)
      - File Size = C x S x T x B
  - - - • Sound can be permanently stored in inexpensive CD.
      - • Consistent sound quality w/o noise or distortion.
      - • Duplicate sound exactly the same as the master copy.
      - • Digital sound can be played at any point of the sound track. (random access)
      - • It can also be integrated with other media.
      - • Can be edited without loss in quality.
  - - - Background music
        
        Sound effects
        
        Voice over or narration
- - - - Fireworks :star:
      - iPhoto :star:
      - Photoshop :star:
    - - Premiere Elements :star:
      - iMovie :star:
      - Movie Maker :star:
    - - Audacity :star:
        
        Characteristics
        
        Basic audio track editing
        
        Mono/stereo
        
        Free download
        
        Limitations
        
        A bit clunky when combining multiple tracks
      - Soundbooth :star:
        
        Characteristics
        
        Basic, easy to use, user friendly interface
        
        Limitations
        
        Not many advanced editing tools for multiple track authoring
      - Garageband :star:
        
        Characteristics
        
        Easy to use, lots of built in libraries and effects
        
        Limitatons
        
        Apple Mac only
  - - - PSD, Proprietary format for Adobe software applications, Compressed :green_cross:
      - PNG, Alternative to jpg for web use, Compressed :check:
      - Jpeg, Commonly used and supported by all devices, software and web, Compressed :check:
      - GIF, Limited colours, commonly used for web, Compressed :check:
      - Tiff, High quality format for print and archiving, Compressed :green_cross:
      - BMP, Bitmap format developed by Microsoft, Compressed :green_cross:
    - - Mpeg-1/2/4 , Compressed format for distribution of good quality/small file size video, Compressed :check:
      - Mov, Apple QuickTime movie format, Compressed :check:
      - WMV, Windows media video format for playback on computer, Compressed :check:
      - FLV, Flash video for any moving image product including animation, Compressed :check:
    - - Wav, Large files without loss of quality, Compressed :green_cross:
      - Ogg Vorbis, slightly better from MP3, Compressed [:check:]
      - MP3, popular and widely used, Compressed :check:
  - - - Contain full quality of the original work
      - Much bigger file sizes
      - best used for archiving and storage as the masters
    - - Discard some information
      - Quality is not as good
      - Benefit
        
        File sizes are smaller
        
        Better for distribution
        
        Can stored on target platforms
- - - - The sampling rate
      - The sample size
      - The number of channels
      - The time span of the recording