digital audio agenda digital audio concepts what’s it all about creating audio equipment demos...
Post on 20-Dec-2015
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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!
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Audio — The Underused MM Asset
What uses??
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Audio — The Underused MM Asset
Analog or Digital Analog
Means? Digital
Means?
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Analog AudioAnalog Audio LPsLPs Cassette / reel / 8 track tapesCassette / reel / 8 track tapes
Advantages of eachAdvantages of each
Disadvantages of eachDisadvantages of each
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Analog AudioAnalog Audio Advantages (LP, tape)Advantages (LP, tape)
FamiliarityFamiliarity Availability (hardware)Availability (hardware) Easy recording (tape)Easy recording (tape) Relative Durability (tape)Relative Durability (tape) TransportabilityTransportability Other?Other?
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Analog AudioAnalog Audio DisadvantagesDisadvantages
QualityQuality InitialInitial Dubs (tape)Dubs (tape)
Durability (especially LPs)Durability (especially LPs) Format stabilityFormat stability
Exception (so far) = cassetteException (so far) = cassette Duration (playing time)Duration (playing time)
Remember changers?Remember changers? ??
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Digital Audio CDs
Advantages?Disadvantages?
Computer sound files Advantages? Disadvantages?
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Digital Audio - CDsDigital Audio - CDs Advantages of CDsAdvantages of CDs
QualityQualityOriginalOriginalDubsDubs
Create own combosCreate own combos Playing time Playing time
(max = ?? min) (max = ?? min) TransportableTransportable DurableDurable
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Digital Audio - CDsDigital Audio - CDs Disadvantages of CDsDisadvantages of CDs
Playing time (capacity) ?Playing time (capacity) ? Dubbing requirementsDubbing requirements
Most newer PCs canMost newer PCs can Special copiers unnecessarySpecial copiers unnecessary
Price of commercialPrice of commercial Are you being ripped off??Are you being ripped off?? Music downloadsMusic downloads
Other?Other?
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Digital Audio – Computer FilesDigital Audio – Computer Files Advantages of Computer SoundAdvantages of Computer Sound
Editable – use only what you needEditable – use only what you need Distributable (= files)Distributable (= files) ConvertibleConvertible
Match format to applicationMatch format to application Quality choicesQuality choices
Affect Affect file sizefile size Significance?Significance?
Other?Other?
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Digital Audio – Computer FilesDigital Audio – Computer Files
Disadvantages of Computer SoundDisadvantages of Computer Sound Lack of familiarity / experienceLack of familiarity / experience Play requires computer Play requires computer
(or (or conversionconversion to another format) to another format) File sizeFile size
Can be huge! Can be huge!
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DA Concepts - 1DA Concepts - 1 Digital Audio File Types +/- of Each Type
CDAWAVMP3 & WMAAU / AIFFMIDIProprietaryOthers?
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Digital Audio FilesDigital Audio FilesTypes & their Characteristics CDA WAV (CD quality or less) MP3 (= mpeg layer 3) WMA AU / AIFF Proprietary Streaming (Real, et al) MIDI (totally different)
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Finding and Finding and Downloading AudioDownloading Audio
The bounty of the Web
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Sample Audio Resources wavcentral.com (nice variety)(nice variety) allwavs.com (some very BAD stuff, too)(some very BAD stuff, too) The Daily Wav (movie & TV clips, some nasty) (movie & TV clips, some nasty) Search for audio files (wav, mp3)Search for audio files (wav, mp3)
Audio Software CompaniesAudio Software Companies Adobe (Audition) (Audition) Goldwave (Goldwave) (Goldwave) Sony (Sound Forge) (Sound Forge) Sonicdesktop (Smart Sound) (Smart Sound)
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DA Concepts - 2DA Concepts - 2Factors you control Recording Volume
Too little = ? Too much = ?
Audio file type Choices vary by software
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DA Concepts - 3DA Concepts - 3Factors you control Quality via Sampling Rate
CD = 44kHz (stereo)Radio (FM) = 22kHz (stereo)Telephone = 11kHz (mono)
Quality via “Format” = Codec Compression / decompressionVarying possibilities within typesExperiment!
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DA Concepts - 4aDA Concepts - 4a Hardware needs
“Card” standard; add mic, cables
Typical PCs Internal
Optical drive wired to sound card
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DA Concepts – 4bDA Concepts – 4b Hardware needs
“Card” standard; add mic, cables Typical PCs
Interchangeable Card
Integrated
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DA Concepts – 4cDA Concepts – 4c Hardware needs
“Card” standard; add mic, cables iMac Example
G3 example
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DA Concepts - 5DA 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
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Setting Up to Record - DemoSetting Up to Record - Demo Volume ControlVolume Control
System Tray icon?System Tray icon? Start > Programs > Accessories > Start > Programs > Accessories >
EntertainmentEntertainment Start > Programs > Multimedia in labStart > Programs > Multimedia in lab
Shows PLAYBACK only at firstShows PLAYBACK only at first Watch for “mute” checksWatch for “mute” checks
Options > Properties > RecordingOptions > Properties > Recording Choose inputs to displayChoose inputs to display Select Select oneone to be used to be used
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Sound RecorderSound Recorder Demo Demo
Mixer controls & problemsMixer controls & problemsKnown?Known?Multiple?Multiple?
RecordRecord
Options that affect qualityOptions that affect quality
EditEdit
Getting what you wantGetting what you want
““Special effects”Special effects”
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Music Match JukeboxMusic Match JukeboxDemoDemo
For Producing Longer For Producing Longer WAVs, MP3s, & Limited WAVs, MP3s, & Limited Format ConversionFormat Conversion
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Sound ForgeSound ForgeDemoDemo
For most flexibility For most flexibility and controland control
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SmartSoundSmartSoundDemoDemo
Create your very Create your very own music for any own music for any needneed - no - no copyright issuescopyright issues
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Inserting Audio into Inserting Audio into PowerPoint — DemoPowerPoint — Demo
Principle: Principle:
EverythingEverything in in oneone singlesingle folder!folder!