CSCI 5582 Fall 2006 CSCI 5582 Artificial Intelligence Lecture 28 Jim Martin.
Digital Audio Editing- Cool Edit Pro By Kimberly Ginsbach CSCI 30.
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Transcript of Digital Audio Editing- Cool Edit Pro By Kimberly Ginsbach CSCI 30.
Digital Audio Digital Audio Editing-Editing-
Cool Edit ProCool Edit ProBy Kimberly GinsbachBy Kimberly Ginsbach
CSCI 30CSCI 30
DefinitionDefinition
Audio Editing=Audio Editing=
process of taking recorded sound process of taking recorded sound and changing it directly on the and changing it directly on the recording mediumrecording medium(from Wikipedia)(from Wikipedia)
HistoryHistory
Middle part 20Middle part 20thth century: century: Magnetic tape recordingMagnetic tape recording Reel-to-reel tape machinesReel-to-reel tape machines Edits made with straight razors and Edits made with straight razors and
special tape- cutspecial tape- cut
History History (ctnd)(ctnd)
Late 1980s, early 1990s:Late 1980s, early 1990s: Microcomputer technologyMicrocomputer technology Digitize recordingsDigitize recordings Edit on hard diskEdit on hard disk
Earliest program:Earliest program:
Wave editor called Sound Wave editor called Sound DesignerDesigner
by Digidesignby Digidesign
Cool Edit ProCool Edit Pro
By Syntrillium Software- created By Syntrillium Software- created 1995 to “produce creativity 1995 to “produce creativity enhancing software products”enhancing software products”
Cool Edit ProCool Edit Pro Digital audio workstation packageDigital audio workstation package 2002: lastest version 2.02002: lastest version 2.0
ApplicationsApplications
Studio recording: Studio recording: usually used to complement hardware, usually used to complement hardware,
for use on the road, or by groups on a for use on the road, or by groups on a budget with little technological abilitiesbudget with little technological abilities
ex: Phunk Junkeezex: Phunk Junkeez Poor MIDI (Musical Instrument Digital Poor MIDI (Musical Instrument Digital
Interface), though improved in latest Interface), though improved in latest versionversion
Applications Applications (ctnd)(ctnd)
Radio: Radio: major presencemajor presence used at some major stationsused at some major stations Examples:Examples:
Sportstalk 980 in DCSportstalk 980 in DC WFAN in NY WFAN in NY
FeaturesFeatures
Digital editingDigital editing Mixer windowMixer window Sound files: over 20 formatsSound files: over 20 formats
Windows PCM (.wav): better qualityWindows PCM (.wav): better quality mp3PRO (.mp3): compressed, easier to mp3PRO (.mp3): compressed, easier to
transmit and store, but lower qualitytransmit and store, but lower quality Next/Sun (.au ), Diamond Ware Next/Sun (.au ), Diamond Ware
Digitized (.dwd), Windows Media Audio Digitized (.dwd), Windows Media Audio 8 (.wma), etc.8 (.wma), etc.
Sound LevelsSound Levels
Normalizing: proportionately increasing Normalizing: proportionately increasing the sound intensity of a file to obtain the sound intensity of a file to obtain maximum quality without any distortionmaximum quality without any distortion
Important to ensure that a sound file Important to ensure that a sound file reaches its full potential audio outputreaches its full potential audio output
When creating multiple tracks, When creating multiple tracks, normalizing allows all tracks to sound normalizing allows all tracks to sound the samethe same
Example: making a CDExample: making a CD
Sound levelsSound levels
Boost/Reduce Volume: increase or Boost/Reduce Volume: increase or decrease the sound volume on a entire decrease the sound volume on a entire file or of a highlighted section of a file file or of a highlighted section of a file by a set decibel valueby a set decibel value
Limits fluctuations in volume within a Limits fluctuations in volume within a sound file or tracksound file or track
Ensures that every sound bite is audibleEnsures that every sound bite is audible Cosmetic feature- improves the natural Cosmetic feature- improves the natural
fluctuations of soundfluctuations of sound
EditingEditing Cutting: highlighting allows to cut Cutting: highlighting allows to cut
pauses between speech or music, pauses between speech or music, remove excess material, and tighten a remove excess material, and tighten a file, improving quality and decreasing file, improving quality and decreasing file sizefile size
Noise reduction: useful in recordings Noise reduction: useful in recordings to minimize background noise and to minimize background noise and improve quality of sound in foregroundimprove quality of sound in foreground
Fade in/Fade out: allows progressive Fade in/Fade out: allows progressive increase or decrease in volume at increase or decrease in volume at beginning or end of track or segmentbeginning or end of track or segment
MixingMixing Up to 128 tracksUp to 128 tracks Allows user to place multiple sound files Allows user to place multiple sound files
together to create a single blended tracktogether to create a single blended track Example: playing a sound clip of a Example: playing a sound clip of a
homerun by the Mets, with music mixed homerun by the Mets, with music mixed in the background- called a music bedin the background- called a music bed
2003: Adobe Takeover2003: Adobe Takeover
May: Adobe Systems Incorporated May: Adobe Systems Incorporated acquired technology assets of acquired technology assets of Syntrillium SoftwareSyntrillium Software
August: Re-branded release of Cool August: Re-branded release of Cool Edit Pro as Adobe AuditionEdit Pro as Adobe Audition
April 19April 19thth, 2004: Adobe Audition 1.5, 2004: Adobe Audition 1.5 Cool Edit Pro last version still Cool Edit Pro last version still
preferentially used over Adobe preferentially used over Adobe Audition 1.5 (blog)Audition 1.5 (blog)
Other SoftwareOther Software Dalet Digital Media Systems by DaletDalet Digital Media Systems by Dalet
used in radio broadcastingused in radio broadcasting more advanced functionsmore advanced functions used by NPR used by NPR used by XM Satellite Radioused by XM Satellite Radio
ProTools by DigiDesign: ProTools by DigiDesign: more use in music industrymore use in music industry excellent with MIDI files, integrates excellent with MIDI files, integrates
well with hardware that connects well with hardware that connects instruments to computerinstruments to computer
Ethical IssuesEthical Issues In radio: respect principle that the In radio: respect principle that the
intention of a statement must never be intention of a statement must never be alteredaltered
Possibility of changing what people sayPossibility of changing what people say ““doctor” a recordingdoctor” a recording zooming in to the 1/1000 s makes it easier zooming in to the 1/1000 s makes it easier
to make editing seamless and undetectableto make editing seamless and undetectable FCC guidelines: increased pressure to FCC guidelines: increased pressure to
comply with strict standards of decency comply with strict standards of decency since technology enables to “clean up” since technology enables to “clean up” pre-recorded material efficientlypre-recorded material efficiently
SourcesSources http://www.forestpro.net/Johnny5/cool-edit-pro-20.htmhttp://www.forestpro.net/Johnny5/cool-edit-pro-20.htm http://www.prosoundnews.com/stories/2002/january/0104/http://www.prosoundnews.com/stories/2002/january/0104/
0104.4.shtml0104.4.shtml http://en.wikipedia.org/wiki/Audio-editinghttp://en.wikipedia.org/wiki/Audio-editing http://nfo.zackdesign.biz/wp/index.php?p=41http://nfo.zackdesign.biz/wp/index.php?p=41 http://bg.mixonline.com/ar/audio_phunk_junkeez_rely/http://bg.mixonline.com/ar/audio_phunk_junkeez_rely/ http://www.computermusic.co.uk/reviews/cool/cool.asphttp://www.computermusic.co.uk/reviews/cool/cool.asp