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EXAMPLES
AUDIO
VIDEO
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TRANSFER
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EDITING
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RESTORATION
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DUPLICATION
PHOTO / GRAPHIC
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SCANNING
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RESTORATION
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PRINT
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TRANSFER
PERSONAL COMPUTER
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Audio restoration
EXAMPLES
Demo 1 -
From "Don Giovanni", Gail Carson,
Soprano, and The National Opera
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Original materials
submitted on audio cassette
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Intermittant High pitched squeak removed
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Various tones and buzzes removed
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Hiss
reduced somewhat (but not so much as to adversely affect high
frequencies of music)
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32 second demo
alternates every few seconds between original and noise reduced
material
Demo 2 - "O Holy
Night", Gail Carson and the Portland Symphony Orchestra
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From audio cassette
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More aggressive hiss
reduction than Demo 1
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Repair of momentary accidental
recording over music, by editing in similar portion found later in
track
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60 cycle hum removed
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17 second
section of material plays twice, first unprocessed and then processed
Demo 3 - Mozart from an
out-of-print Long Playing Record
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Pop Reduction for
scratches
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Crackle Reduction
for static, not too aggressive (keeping high end definition)
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Continuous Noise
Reduction, not too aggressive (keeping high end definition)
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An
unprocessed segment plays and then the same after processing
Demo 4 - Same
processing done in Demo 3, different section of Mozart LP
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Pop Reduction for
scratches, relatively nasty ones in this case, and right at the
beginning of the piece!
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Crackle Reduction
for static, not too aggressive (keeping high end definition)
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Continuous Noise
Reduction, not too aggressive (keeping high end definition)
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An
unprocessed segment plays and then the same after processing
Demo 5 - Same as Demo 4,
but with manual editing of remaining pops
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Noise Reduction and
Equalization usually experimented with until some generally good
settings are arrived at for a particular selection or program
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This example
demonstrates how we can go further in carefully editing small
segments of material to remove remaining unwanted effects that
we don't want to hear.
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More or less can be
done
depending on budget, but there is a point of diminishing returns
eventually.
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