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Digital Audio Agenda Digital Audio Concepts What’s it all about Creating Audio Equipment Demos and practice time Best way to learn = explore Guides on class web site! Audio — The Underused MM Asset What uses?? Audio — The Underused MM Asset Analog or Digital Analog Means? Digital

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digital audio agenda
Digital Audio Agenda
  • Digital Audio Concepts
    • What’s it all about
  • Creating Audio
    • Equipment
  • Demos and practice time
    • Best way to learn = explore
    • Guides on class web site!
audio the underused mm asset3
Audio — The Underused MM Asset
  • Analog or Digital
  • Analog
    • Means?
  • Digital
    • Means?
analog audio
Analog Audio
  • LPs
  • Cassette / reel / 8 track tapes
  • Advantages of each
  • Disadvantages of each
analog audio5
Analog Audio
  • Advantages (LP, tape)
    • Familiarity
    • Availability (hardware)
    • Easy recording (tape)
    • Relative Durability (tape)
    • Transportability
    • Other?
analog audio6
Analog Audio
  • Disadvantages
    • Quality
      • Initial
      • Dubs (tape)
    • Durability (especially LPs)
    • Format stability
      • Exception (so far) = cassette
    • Duration (playing time)
      • Remember changers?
    • ?
digital audio
Digital Audio
  • CDs
    • Advantages?
    • Disadvantages?
  • Computer sound files
    • Advantages?
    • Disadvantages?
digital audio cds
Digital Audio - CDs
  • Advantages of CDs
    • Quality
      • Original
      • Dubs
    • Create own combos
    • Playing time (max = ?? min)
    • Transportable
    • Durable
digital audio cds9
Digital Audio - CDs
  • Disadvantages of CDs
    • Playing time (capacity) ?
    • Dubbing requirements
      • Most newer PCs can
      • Special copiers unnecessary
    • Price of commercial
      • Are you being ripped off??
      • Music downloads
    • Other?
digital audio computer files
Digital Audio – Computer Files
  • Advantages of Computer Sound
    • Editable – use only what you need
    • Distributable (= files)
    • Convertible
      • Match format to application
    • Quality choices
      • Affect file size
      • Significance?
    • Other?
digital audio computer files11
Digital Audio – Computer Files
  • Disadvantages of Computer Sound
    • Lack of familiarity / experience
    • Play requires computer (or conversion to another format)
    • File size
      • Can be huge!
da concepts 1
DA Concepts - 1
  • Digital Audio File Types
  • +/- of Each Type
    • CDA
    • WAV
    • MP3 & WMA
    • AU / AIFF
    • MIDI
    • Proprietary
    • Others?
digital audio files
Digital Audio Files

Types & their Characteristics

  • CDA
  • WAV (CD quality or less)
  • MP3 (= mpeg layer 3)
  • WMA
  • AU / AIFF
  • Proprietary
  • Streaming (Real, et al)
  • MIDI (totally different)
finding and downloading audio

Finding and Downloading Audio

The bounty of the Web

sample audio resources
Sample Audio Resources
  • wavcentral.com (nice variety)
  • allwavs.com(some very BAD stuff, too)
  • The Daily Wav (movie & TV clips, some nasty)
  • Search for audio files (wav, mp3)

Audio Software Companies

  • Adobe (Audition)
  • Goldwave (Goldwave)
  • Sony (Sound Forge)
  • Sonicdesktop (Smart Sound)
da concepts 2
DA Concepts - 2

Factors you control

  • Recording Volume
    • Too little = ?
    • Too much = ?
  • Audio file type
    • Choices vary by software
da concepts 3
DA Concepts - 3

Factors you control

  • Quality via Sampling Rate
    • CD = 44kHz (stereo)
    • Radio (FM) = 22kHz (stereo)
    • Telephone = 11kHz (mono)
  • Quality via “Format” = Codec 
    • Compression / decompression
    • Varying possibilities within types
    • Experiment!
da concepts 4a
DA Concepts - 4a
  • Hardware needs
    • “Card” standard; add mic, cables
  • Typical PCs
    • Internal
      • Optical drive wired to sound card
da concepts 4b
DA Concepts – 4b
  • Hardware needs
    • “Card” standard; add mic, cables
  • Typical PCs
    • Interchangeable Card
    • Integrated
da concepts 4c
DA Concepts – 4c
  • Hardware needs
    • “Card” standard; add mic, cables
  • iMac Example
  • G3 example
da concepts 5
DA Concepts - 5
  • Software to record / edit
    • Sound Recorder is standard (Win)
      • Limitations
    • Media Player (std, limits)
    • MusicMatch Jukebox (free)
    • Sound Forge, et al.
      • More sophisticated, flexible; buy
  • Software / Hardware to create
    • SmartSound (buy)
    • MIDI devices
setting up to record demo
Setting Up to Record - Demo
  • Volume Control
    • System Tray icon?
    • Start > Programs > Accessories > Entertainment
    • Start > Programs > Multimedia in lab
  • Shows PLAYBACK only at first
    • Watch for “mute” checks
  • Options > Properties > Recording
    • Choose inputs to display
    • Select one to be used
sound recorder demo

Sound Recorder Demo

Mixer controls & problems Known? Multiple?

Record

Options that affect quality

Edit

Getting what you want

“Special effects”

music match jukebox demo

Music Match JukeboxDemo

For Producing Longer WAVs, MP3s, & Limited Format Conversion

sound forge demo

Sound ForgeDemo

For most flexibility and control

smartsound demo

SmartSoundDemo

Create your very own music for any need - no copyright issues

inserting audio into powerpoint demo

Inserting Audio into PowerPoint — Demo

Principle:

Everything in onesingle folder!

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