Sound Editing Techniques & Programs Combine Images with Audio

Always Remember Sound…  Invokes an image in the mind  Effective Background music that matches the action in a scene  Sound effects that match  Can enhance or take away from an image:  A poor image is forgivable, poor sound is not.

“Sound Advice”  On location shoots, use a good directional microphone  Boom Mic or  Shotgun Mic  Always shoot in a location with the least possible interference  Try to avoid noisy Backgrounds  Some audio Cables don’t like neon lights  On location shoots, use a good directional microphone  Boom Mic or  Shotgun Mic  Always shoot in a location with the least possible interference  Try to avoid noisy Backgrounds  Some audio Cables don’t like neon lights

“Sound Advice”  Background Music  It should only add to the content, not take away from it, so…  Make sure it’ not too loud  Make sure it fits the action on the screen  Keep in Mind Copyright when dealing with music. For Royalty-Free music, check out:  SmartSound  Soundtrack  Background Music  It should only add to the content, not take away from it, so…  Make sure it’ not too loud  Make sure it fits the action on the screen  Keep in Mind Copyright when dealing with music. For Royalty-Free music, check out:  SmartSound  Soundtrack

Microphone Types PICKUP PATTERNS

Recording Devices  Reel-to-Reel  Audio Cassette  Lower Quality  DAT (Digital Audio Tape)  MiniDisc  CD Recorders  Better for post-production  In Computers (CD-RW drives)  As stand-Alone machines  MP3 Recorders  Lower Quality  Direct line into a Computer  Reel-to-Reel  Audio Cassette  Lower Quality  DAT (Digital Audio Tape)  MiniDisc  CD Recorders  Better for post-production  In Computers (CD-RW drives)  As stand-Alone machines  MP3 Recorders  Lower Quality  Direct line into a Computer

Audio File Formats  Generic (cross-platform/cross-application) .snd (native Macintosh) .aiff .wav .mp3 .au  Real Audio (RA)  Proprietary (Application Specific) .aup (Audacity sound File; will NOT work in PowerPoint)  Generic (cross-platform/cross-application) .snd (native Macintosh) .aiff .wav .mp3 .au  Real Audio (RA)  Proprietary (Application Specific) .aup (Audacity sound File; will NOT work in PowerPoint) Works well with PowerPoint

The Difference in Audio Quality:  Sampling Rate  The number of times each second (frequency) the computer stores information about the sound wave.  Bit Rate  Binary code for measuring the height (amplitude) of the sound  Compression  Sampling Rate  The number of times each second (frequency) the computer stores information about the sound wave.  Bit Rate  Binary code for measuring the height (amplitude) of the sound  Compression “CD” Quality 44 KHz16-bit Stereo10.3 MB 44 KHz8-bit Stereo5.18 MB “FM” Radio Quality 22 KHz16-bit Stereo5.18 MB 22 KHz8-bit Stereo2.59 MB “AM” Radio or Phone Quality 11 KHz16-bit Stereo2.59 MB 11 KHz8-bit Stereo1.29 MB One Minute of Uncompressed Digital Audio (MS WAV format) Source:

Sound Editing in Audacity

iMovie Sound Effects Built-in Sound Effects

iMovie Audio Editing Click and Drag Volume Level Bar to Edit Audio

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