Sound and Music

Sound and Music

1. Microphones

   • Input devices
   • Enter voice, sounds, live music

2. Speakers and headphones

   • Output devices
   • Output the sound/music after processing by the computer

3. The hardware and software and techniques used for sound

   • MP3 Players
     • Play music files stored digitally
     • Small and portable
     • Store thousands of music tracks
     • Mobile phones

4. Sound cards

   • circuit boards
     • chips and other components
   • High quality
   • Recorded and outputted

5. MIDI

   • MUSICAL INSTUMENTS DIGITAL INTERFACE
   • Allows musical instruments to transfer music to a computer
   • Edited and stored
   • E.g. Keyboard
   • Play back music stored

6. Sound Conversion

   • Analogue to digital
   • Digital to analogue
   • sound is an analogue signal
   • all computers process digital data
   • analogue needs to be converted
   • analogue to digital converter is used

7. Sequencers

   • Hardware or software used to manage music
   • Music workstations

8. Notators

   • Music Composition software
   • Software that allows you to compose your own music
   • Enter notes into the computer

9. Sound Wave Editors

   • Allows sound waves to be altered
   • Alter, cut, paste and have effects

10. Analogue input

    • Analogue to digital conversion
      • Digital System
        • Digital to analogue conversion
          • Analogue output

11. SOUND AND MUSIC

    • File Formats
      • WAV - Wave - the highest quality but file sizes are large
      • MP3 - high compression rate without quality loss
      • WMA - Windows Media Audio - High quality sound at high compression
    • Downloading Music
      • Easily access a range of mediums
      • Download tracks
      • Can be loaded onto portable devices
    • Problems and Copyrights
      • Sharing files without permission
        • Copyrights protects
      • Don't copy without permission
      • All sounds and music is protected by the copyright, design and patents act 1988