opinions on this one with dreaded 16 khz stripe

[ssamadhi97]

Originally Posted by Five

it could be fm or tv

Actually I suspect that it's straight sbd / prefm. FM/TV broadcasting inevitably lowpasses the signal somewhere below 16kHz.


One example of a prefm show with "The Stripe" would be this one:

http://www.archive.org/audio/etree-d...b.php?id=11741

[showtaper]

Originally Posted by ssamadhi97

Actually I suspect that it's straight sbd / prefm. FM/TV broadcasting inevitably lowpasses the signal somewhere below 16kHz.


One example of a prefm show with "The Stripe" would be this one:

http://www.archive.org/audio/etree-d...b.php?id=11741

A true pre-FM would have no stripe, the carrier that causes the stripe happens when the signal is broadcast. Pre-FM's are either air-checks (recorded from the console) or a copy of the raw tape and would not be limited in frequency response or have the FM carrier.....

[ssamadhi97]

Originally Posted by showtaper

A true pre-FM would have no stripe, the carrier that causes the stripe happens when the signal is broadcast. Pre-FM's are either air-checks (recorded from the console) or a copy of the raw tape and would not be limited in frequency response or have the FM carrier.....

*ehem* if by "FM carrier" you mean the stereo pilot tone, that would be at 19kHz and not at 16kHz.

[showtaper]

Originally Posted by ssamadhi97

*ehem* if by "FM carrier" you mean the stereo pilot tone, that would be at 19kHz and not at 16kHz.

You are correct. I've already shown how a poor soundcard can introduce
"stripes" at 16kHz (among other frequencies)........

Originally Posted by showtaper

You are correct. I've already shown how a poor soundcard can introduce
"stripes" at 16kHz (among other frequencies)........

I HAVE BEEN TELLING PEOPLE THIS FOR 10 YEARS BUT THEY ARE TO IGNORANT TO BELIVE IT OR TO DUMB TO UNDERSTAND IT !

AND DONT EVEN GET ME STARTED ABOUT THE CASSETTE AND MIC FREQUENCY LIMITATIONS

Originally Posted by showtaper

Here's a quick one to show what a cheap soundcard looks like with no input.

To enhance the stripes a bit, I normalized the file by 10% and boosed the high end by 10db. These settings could be used by someone to boost the volume and compensate for missing highs on an old cassette recording.

The moral: not every artifact is from lossy compression. With a little work, I can probably duplicate most waveform distortions.....

DAMN ALL THOSE RED SPECKS ARE NOTHING BUT HISS NOISE AND DISTORTION CORRECT !


WAS THIS A SND CARD THAT IS BUILT INTO A MOTHERBOARD ?

I HEAR THOSE ARE REALLY FUCKING AWFUL

I Have A Couple Of Decent Sound Cards Id Be Willing To Send To Anyone Wishing To Avoid This Crap

Just Pay The Postage !

Provided They Are Willing To Share There Collection !

[showtaper]

Originally Posted by mort

DAMN ALL THOSE RED SPECKS ARE NOTHING BUT HISS NOISE AND DISTORTION CORRECT !


WAS THIS A SND CARD THAT IS BUILT INTO A MOTHERBOARD ?

I HEAR THOSE ARE REALLY FUCKING AWFUL

Yeah, this was from an on-board card. The rest of the crap is the other miscellaneous noise components the card introduces, Just remember I did normalize a bit to emphasize what happens when you boost a signal that was captured with insufficient volume. That would bring up the lower level noise as well as any tape hiss that was captured.

The moral:

Get a freaking decent soundcard. Some experts recommend an external card so that you dont pick up any additional noise from the hi-frequency components in side the computer.

If you don't capture or induce noise, you won't have to try to take it out.......

Originally Posted by mort

I Have A Couple Of Decent Sound Cards Id Be Willing To Send To Anyone Wishing To Avoid This Crap

Just Pay The Postage !

Provided They Are Willing To Share There Collection !

Anything USB related?

I have a few analog shows that I would be willing to share, but I need something external. Let me know.