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#2
2011-08-10, 02:36 AM
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Re: How to detect if audio is from a cassette
China is the most eco-friendly country in the world.
 ........oh yeah. No!
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#3
2011-08-10, 04:35 AM
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Re: How to detect if audio is from a cassette
I dunno what China or eco-friendly countries have to do with cassette rips, but yeah, no, there isn't really a way to detect a tape rip. At least, not some fool-proof automatic way, since even the "automatic fool-proof" ways to detect an eMPty3 aren't quite so fool-proof and precise and perfect anyway!
What's wrong with cassettes anyway? They CAN be pretty good! Really! haha Good luck!
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#4
2011-08-10, 06:32 AM
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Re: How to detect if audio is from a cassette
My only guess is to listen for tape hiss? But even still, a recording having hiss doesn't mean it's from a tape.
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#5
2011-08-10, 10:13 AM
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Re: How to detect if audio is from a cassette
Quote:
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#6
2011-08-10, 12:10 PM
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Re: How to detect if audio is from a cassette
yeah, probably a bit of hiss if the tape is 2nd - 3rd gen.
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#7
2011-08-10, 02:17 PM
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Re: How to detect if audio is from a cassette
Quote:
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#8
2011-08-10, 06:59 PM
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Re: How to detect if audio is from a cassette
I've got a few raw files from Mike (mikesline) where you could hear the tape flip, because he ejects it while it's still going & hits record as he's cramming the tape in the machine...
Hiss, can be created & various stages/sources. The instrument amps, the PA, the mixer, the recording device. Most digital recorders record native @ 48/24. When you downsample, you either dither, or get distortion. Dithering is adding noise (comparable to hiss) to keep distortion to a minimum... No members have liked this post.
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#10
2011-08-19, 05:46 PM
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Re: How to detect if audio is from a cassette
Quote:
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#11
2011-08-19, 05:55 PM
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Re: How to detect if audio is from a cassette
I have seen frequency response graph indicating stuff happening up to 240000hz on tape. I've seen one tape I made that has (although it isn't musical) a spike on the recording (not playback interference) - it was around 33000hz!
The tape doesn't necessarily cut off frequencies like a lossy file chops off. More likely the music rolls off at the same rate as the tape does, the same way the mics do... It isn't as clear cut an issue for tape cut off points as the way an mp3 does it. There are lots of variances that can't be accounted for so easily... Listen for breaks in the audio where the tape flips would have to be. That's your best clue...
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