opinions on this one with dreaded 16 khz stripe

[mort]

opinions on this one with dreaded 16 khz stripe


tried to upload jpg bbut keep getting error message about database ?

[mort]

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I KEEP GETTING THIS MESSAGE

[AAR.oner]

just u/l it to imageshack and then use the IMG link in yer post

[mort]

Image Shack ?

[range_hood]

http://www.google.com/search?hl=en&q=image+shack&btnG=Google+Search

[mort]

opinions on this one with dreaded 16 khz stripe


tried to upload jpg bbut keep getting error message about database ?



http://img481.imageshack.us/img481/8316/mp3sourcednyc4mv.jpg

[AAR.oner]

could be a TV source...or, i've seen analogue cassette put "stripes" in...i'll leave further speculation to the others

[mort]

could be a TV source...or, i've seen analogue cassette put "stripes" in...i'll leave further speculation to the others


not tv or fm it is a rip from an analouge aud tape so the ripper says !

[AAR.oner]

yup, cassette transfers often have a "stripe", sometimes more than one...inherehent in ana cass from what i understand

[mort]

yup, cassette transfers often have a "stripe", sometimes more than one...inherehent in ana cass from what i understand



odd because none of mine have this stripe and i do these transfers all day long

[Five]

usually a stripe like this means its from fm or tv. some ppl can tell exactly by looking at the frequency. the frequency response also seems to indicate this is from a broadcast. on the bright side, it doesn't look lossy. does it sound like a sbd?

[showtaper]

usually a stripe like this means its from fm or tv. some ppl can tell exactly by looking at the frequency. the frequency response also seems to indicate this is from a broadcast. on the bright side, it doesn't look lossy. does it sound like a sbd?

If it really is from a cassette, the problem may be the soundcard used.

Many inexpensive or onboard cards create artifacts in the audible range.
Can be internal clock interference or other induced noise as well. Cheap
cables used between the deck and computer may be poorly shielded and
picking up stray noise also.

You can see this easily by capturing from a blank tape. There is no inherent
"stripe" in a cassette recording.

Hundreds of ways to get noise into an otherwise decent signal.......

[mort]

If it really is from a cassette, the problem may be the soundcard used.

Many inexpensive or onboard cards create artifacts in the audible range.
Can be internal clock interference or other induced noise as well. Cheap
cables used between the deck and computer may be poorly shielded and
picking up stray noise also.

You can see this easily by capturing from a blank tape. There is no inherent
"stripe" in a cassette recording.

Hundreds of ways to get noise into an otherwise decent signal.......



YEA THATS WHAT I SUSPECT AS WELL

SHITTY SOUNDCARD


THANKS ALL

[*dJ*]

I also have a recording with a 16 kHz stripe, but it also has a stripe around 18,5 kHz.

All info about source is:
sbd or broadcast ? > ???? > cd-r > eac > wav > dbpoweramp > flac

Can I savely say this is FM sourced?
http://img360.imageshack.us/img360/985/muse22ny.th.jpg (http://img360.imageshack.us/my.php?image=muse22ny.jpg)
http://img474.imageshack.us/img474/543/muse1lf.th.jpg (http://img474.imageshack.us/my.php?image=muse1lf.jpg)


PS. I hope it's okay I put it in this thread..

[Five]

it could be fm or tv

maybe ssamadhi97 can tell which of the two...

[mort]

I also have a recording with a 16 kHz stripe, but it also has a stripe around 18,5 kHz.

All info about source is:
sbd or broadcast ? > ???? > cd-r > eac > wav > dbpoweramp > flac

Can I savely say this is FM sourced?
http://img360.imageshack.us/img360/985/muse22ny.th.jpg (http://img360.imageshack.us/my.php?image=muse22ny.jpg)
http://img474.imageshack.us/img474/543/muse1lf.th.jpg (http://img474.imageshack.us/my.php?image=muse1lf.jpg)


PS. I hope it's okay I put it in this thread..


SURE WHY NOT !

[ffooky]

it could be fm or tv

How can it possibly be FM with all that activity (not just noise) well over 15KHz?

[Five]

I think it came up in another thread that with some broadcast-sourced shows there's been music (no just noise) above 15kHz with a stripe. 99.9% of all fm or tv broadcasts (I would like to say 100) have the stripe and a slightly uneven cutoff around 15kHz... so this is strange indeed :hmm:

So could this be caused by a bad soundcard? HIFI VHS archiving, perhaps?

[mort]

http://img481.imageshack.us/img481/8316/mp3sourcednyc4mv.jpg



THIS COMES FROM A TORRENT BY J. P. F. !

LOOKS LIKE HE NEEDS TO SPEND A LITTLE LESS ON BOOZE AND MORE ON A SOUND CARD


I MEAN REALLY

DOING TRANSFERS WITH A SOUNDCARD THAT IS BUILT INTO THE MOTHER BOARD IS A TOTAL WASTE OF TIME

ITS NO WONDER HE WONT TORRENT HERE

[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.....

[mort]

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.....



conclusion noise and distortion induced by poor soundcards can appear to be
music but is just noise and distortion !

[showtaper]

conclusion noise and distortion induced by poor soundcards can appear to be
music but is just noise and distortion !


Yeah, I just don't like people claiming everything that they see is lossy compression when there are a LOT of other things that show up in a signal.....


Mort, please PM or email me, I think we traded a bunch of Tull shows in the past.....([email protected])

[ssamadhi97]

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-details-db.php?id=11741

[showtaper]

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-details-db.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]

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]

*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)........

[mort]

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 ! :hmm:

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

[mort]

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

[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 !

[showtaper]

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.......

[alchemy71085]

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.