Editing Audio FilesEditing Audio Filesfor a Non-Audio Professional Audiencefor a Non-Audio Professional Audience

July 26July 26thth 2007 2007

Vic DivechaVic Divecha

eLearning SpecialisteLearning Specialist

School of Public HealthSchool of Public Health

Public Health Library & InformaticsPublic Health Library & Informatics

OverviewOverview Capturing AudioCapturing Audio

SourcesSources Sound Card Mic / USB MicSound Card Mic / USB Mic XLR MicXLR Mic Computer SpeakersComputer Speakers

Open Source Background Music Open Source Background Music EditingEditing

Studying a WaveformStudying a Waveform Basic Editing: Trim & ExportBasic Editing: Trim & Export

Producing & PostingProducing & Posting Reconverting in iTunes with MetadataReconverting in iTunes with Metadata Podcasting using iTunes U in CToolsPodcasting using iTunes U in CTools

Advanced Editing: Audio Level MatchingAdvanced Editing: Audio Level Matching Intros, break music pieces Intros, break music pieces

Capturing Audio: Headsets / Capturing Audio: Headsets / Desktop MicsDesktop Mics

Plugs into computer’s soundcard

Recording may pickup interference from other circuitry

Plugs into computer via USB

Interference eliminated: better sound quality

Connects wirelessly over bluetooth

Requires fresh batteries; battery charge effects quality.

Additional bluetooth reciever may be required.

Requires advanced knowledge to make the setup work

Capturing Audio: XLR MicsCapturing Audio: XLR Mics M-Audio: Podcast Factory for WinXPM-Audio: Podcast Factory for WinXP

Doesn’t make podcast creation quite as Doesn’t make podcast creation quite as painless as it could be. $200painless as it could be. $200

Open Source MusicOpen Source Music

http://ccmixter.org/http://ccmixter.org/

http://search.creativecommons.org/http://search.creativecommons.org/ http://www.owlmusicsearch.com/http://www.owlmusicsearch.com/ http://www.archive.orghttp://www.archive.org

Standalone:Standalone: Samsung YP-T7Samsung YP-T7 Built in Built in

rechargeable rechargeable batterybattery

Capturing Audio: Digital Capturing Audio: Digital RecordersRecorders

Capturing Audio: Computer Capturing Audio: Computer SpeakersSpeakers

Camtasia by Camtasia by TechsmithTechsmith Captures Regions of Captures Regions of

the screen, the screen, windows, entire windows, entire screen with/without screen with/without audioaudio

EditingEditing

The Basics:The Basics: Common Formats: Wave, mp3, AAC, etc.Common Formats: Wave, mp3, AAC, etc. Introduction to Sampling Rate / Introduction to Sampling Rate /

Sampling Quality ConceptSampling Quality Concept 22.050kHz, 11.25kHz etc. / 12 bit, 16 bit etc.22.050kHz, 11.25kHz etc. / 12 bit, 16 bit etc. Chipmunking ProblemsChipmunking Problems Sync problems (Camtasia)Sync problems (Camtasia)

Waveforms: Good, Bad & UglyWaveforms: Good, Bad & Ugly

Studying a WaveformStudying a Waveform

Audacity: Audio Recording, Mixing, Effects & EnhancementsAudacity: Audio Recording, Mixing, Effects & Enhancements http://audacity.sourceforge.net/http://audacity.sourceforge.net/ Portable Portable (USB):(USB):http://portableapps.com/apps/music_video/audacity_portablehttp://portableapps.com/apps/music_video/audacity_portable

Basic Audio EditingBasic Audio Editing Trimming, FadingTrimming, Fading Q & A Situations: Selective Level AdjustmentsQ & A Situations: Selective Level Adjustments Export to Uncompressed WavExport to Uncompressed Wav

iTunes: ImportingiTunes: Importing

Set Preferences for Set Preferences for ImportImport Simplified Simplified

TerminologyTerminology

iTunes: Metadata iTunes: Metadata Hands-onHands-on

What is metadata?What is metadata? Importance of MetadataImportance of Metadata Adding Text MetadataAdding Text Metadata Adding Image MetadataAdding Image Metadata

iTunes U & CToolsiTunes U & CToolsPrivate PodcastPrivate Podcast

Request iTunes U from CTools HelpRequest iTunes U from CTools Help Edit podcast pageEdit podcast page Create tabsCreate tabs Upload files to tabsUpload files to tabs

CTools Resource FolderCTools Resource FolderAFS Public_HTML SpaceAFS Public_HTML Space

Public DistributionPublic Distribution

Upload to CTools Resource FolderUpload to CTools Resource Folder Make Site Public or Make Resource Make Site Public or Make Resource

PublicPublic

Upload to AFS / Other webspaceUpload to AFS / Other webspace Distribute http download linksDistribute http download links

Waveform: Advanced Editing: Waveform: Advanced Editing: TracksTracks

Prevent accidental edits: Lock TrackPrevent accidental edits: Lock Track Relative Audio LevelsRelative Audio Levels

Waveform: Advanced Editing: Waveform: Advanced Editing: Noise RemovalNoise Removal

Automatic Noise RemovalAutomatic Noise Removal ““Silent” SampleSilent” Sample Noise RemovalNoise Removal

Related Links, Resources & Related Links, Resources & ArticlesArticles Workshop MaterialsWorkshop Materials

http://sitemaker.umich.edu/podcasting http://sitemaker.umich.edu/podcasting SoftwareSoftware

Creating mp3 / aac AudioCreating mp3 / aac Audio iTunesiTunes

Creating mp4, m4v (iPod Video)Creating mp4, m4v (iPod Video) JODIX: www.jodix.comJODIX: www.jodix.com QuicktimePro: QuicktimePro: www.apple.com/quicktimewww.apple.com/quicktime

Apple iTunes U GuideApple iTunes U Guide http://images.apple.com/support/itunes_u/docs/iTunes_U_User_Guide.pdf http://images.apple.com/support/itunes_u/docs/iTunes_U_User_Guide.pdf

Audacity Audio EditorAudacity Audio Editor http://audacity.sourceforge.net/http://audacity.sourceforge.net/ Portable: Portable: http://portableapps.com/apps/music_video/audacity_portablehttp://portableapps.com/apps/music_video/audacity_portable

Dentistry Podcast Resource Page:Dentistry Podcast Resource Page: http://www.lib.umich.edu/dentlib/resources/guides/podcast.htmlhttp://www.lib.umich.edu/dentlib/resources/guides/podcast.html

Educause: 7 Things You Should Know about Podcasting:Educause: 7 Things You Should Know about Podcasting: http://www.educause.edu/LibraryDetailPage/666?ID=ELI7003http://www.educause.edu/LibraryDetailPage/666?ID=ELI7003

Request iTunes U Tool in your Ctools site: Request iTunes U Tool in your Ctools site: ctools@umich.edu ctools@umich.edu