2. Audio ► Analog or Digital ► Analog  Means?  Examples ► Digital  Means  Examples?

3. Analog Audio ► LPs ► Cassette / reel / 8 track tapes ► Advantages of each   ► Disadvantages of each  

4. Analog Audio ► Advantages (LP, tape)  Familiarity  Availability (hardware)  Easy recording (tape)  Relative Durability (tape)  Transportability  Other?

5. Analog Audio ► Disadvantages  Quality ► Initial ► Dubs (tape)  Durability (especially LPs)  Format stability ► Exception (so far) = cassette  Duration (playing time) ► Remember changers?  ? ? ? ?

6. Digital Audio ► CDs  Advantages?  Disadvantages? ► Computer sound files  Advantages?  Disadvantages?

7. Digital Audio ► Advantages of CDs  Quality ► Original ► Dubs  Playing time (max = xx min)  Transportable  Durable  Other?

8. Digital Audio ► Disadvantages of CDs  Playing time (capacity) ?  Dubbing requirements  Cost to buy commercial ► Are you being ripped off??  Other?

9. Digital Audio ► Advantages of Computer Sound  Editable  Distributable (files)  Convertible  Quality choices ► Affect file size ► Significance?  Other?

10. Digital Audio ► Disadvantages of Computer Sound  Lack of familiarity / experience  Play requires computer (or conversion to another format)  File size ► Can be huge!

11. DA Concepts - 1 ► Digital Audio File Types ► +/- of Each Type  CDA  WAV (std vs lower)  MP3 & WMA  AU / AIFF  MIDI  Others?

12. DA Concepts - 2 Factors you control ► Recording Volume  Too little = ?  Too much = ? ► Audio file type  Choices vary by software

13. DA Concepts - 3 Factors you control ► Quality via Sampling Rate  CD = 44kHz  Radio (FM) = 22kHz  Telephone = 11kHz ► Quality via “Format” = Codec ► Quality via “Format” = Codec  Compression / decompression  Many possibilities within types  Experiment!

14. DA Concepts – 4a ► Hardware needs  “Card” standard; add mic, cables ► Typical PCs  Interchangeable Card  Integrated

15. DA Concepts – 4b ► Hardware needs  “Card” standard; add mic, cables ► iMac Example ► G3 example

16. DA Concepts - 5 ► Software to record / edit  Sound Recorder is standard (Win) ► Limitations  MusicMatch Jukebox  Sound Forge, et al. – more sophisticated ► Software / Hardware to create  SmartSound  MIDI ► DEMONSTRATIONS!

17. Streaming Media Resources ► Faculty Development  More than you’ll need to know  Audio via RealProducer, QT, etc. ► www3.niu.edu/facdev/media/presentations. htm www3.niu.edu/facdev/media/presentations. htm www3.niu.edu/facdev/media/presentations. htm

18. Sound Recorder Demo Mixer controls – often a problem Known? Multiple? Record Options that affect quality Edit Getting what you want “Special effects”

19. Music Match Jukebox Demo For Producing Longer WAVs, MP3s, & Some Limited Format Conversion

20. SmartSound Demo Can’t save in demo version

21. Inserting Audio Demo Principle: Everything in a single folder

22. Sample Web Resources ► wavcentral.com (Nice variety) wavcentral.com ► allwavs.com (some very BAD stuff, too) allwavs.com ► Multimedia sites from other units ► Search for audio files ► syntrillium.com syntrillium.com ► goldwave.com goldwave.com ► sonicfoundry.com sonicfoundry.com ► sonicdesktop.com sonicdesktop.com