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Lossy or Lossless? Please use this forum to post spectral and frequency analysis posts about shows you have your doubts about.

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  #16  
Old 2005-08-22, 06:34 PM
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range_hood range_hood is offline
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Re: Lossy or 32Khz DAT

could you please provide a 10 secs. sound sample?
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  #17  
Old 2005-08-23, 08:15 AM
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ssamadhi97 ssamadhi97 is offline
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Re: Lossy or 32Khz DAT

yea, this stuff is 32kHz sourced indeed

take a look at these

http://www.thetradersden.org/forums/...achmentid=6574

http://www.thetradersden.org/forums/...achmentid=6589

and note how the spectrum close above 16kHz (fs/2) looks like a flipped image of the spectrum close below 16kHz. that's a typical sign of upsampling (whose presence depends on the resampling implementation used - it might be more or less pronounced in other 32kHz sourced recordings).
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  #18  
Old 2005-08-23, 10:34 AM
BoldCaptain BoldCaptain is offline
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Re: Lossy or 32Khz DAT

I went back to the original DAT in question, and yes indeed, this was recorded at 32k. I dont know what to say-I am so embarrassed. My apologies to Thornhill, who seeded this for me, and anyone else offended by the 32k recording.
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  #19  
Old 2005-08-23, 12:58 PM
corsair corsair is offline
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Re: Lossy or 32Khz DAT

Just curious. So is my original assessment of the recording that I've asked in the first place is indeed 32Khz DAT as well?
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  #20  
Old 2005-08-23, 02:15 PM
thornhill
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Re: Lossy or 32Khz DAT

Quote:
Originally Posted by BoldCaptain
I went back to the original DAT in question, and yes indeed, this was recorded at 32k. I dont know what to say-I am so embarrassed. My apologies to Thornhill, who seeded this for me, and anyone else offended by the 32k recording.
32k aint exactly a shit in the eardrums. its a quite welcome break from all the damn mp3 sourced and minidisc b.s. ive gotten in the past from other sources, and for anyone who recieved this recording in the seed, im sure they can attest.
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  #21  
Old 2005-08-23, 05:15 PM
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Re: Lossy or 32Khz DAT

Quote:
Originally Posted by corsair
Just curious. So is my original assessment of the recording that I've asked in the first place is indeed 32Khz DAT as well?
that's how it looks to me

thanks everyone for the great discussion here
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  #22  
Old 2005-08-24, 11:49 AM
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range_hood range_hood is offline
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Re: Lossy or 32Khz DAT

Quote:
Originally Posted by ssamadhi97
[...] and note how the spectrum close above 16kHz (fs/2) looks like a flipped image of the spectrum close below 16kHz. that's a typical sign of upsampling (whose presence depends on the resampling implementation used - it might be more or less pronounced in other 32kHz sourced recordings).
This is great info. Thanks ssamadhi97.

Taken from corsairs sample:
Attached Images
File Type: png 32kHzDAT.png
( 102.1 KB, 196 views)
 
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  #23  
Old 2005-08-24, 08:43 PM
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ssamadhi97 ssamadhi97 is offline
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Re: Lossy or 32Khz DAT

Quote:
Originally Posted by range_hood
This is great info. Thanks ssamadhi97.
np.

I should have some more blatant examples somewhere, "for great illustration". Stuff like 32kHz DAT upsampled to 48kHz and back to 44.1kHz on the fly during transfer through a SBLive!, for example. (Thanks a lot, Creative. Please die.) I shall dig for some good pics once I'm back home.
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  #24  
Old 2005-08-27, 02:08 AM
corsair corsair is offline
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More study onto 32Khz DAT

I've got 2 recordings where the source more or less swears its never on mp3, but rather on 32KHz DAT. Unlike the waveform posted earlier in another thread, its rather different. And at 16Khz, there is mirror image flip at that point to signify upsampling.

I'll attached images of the SA of the 1st of 2 recodings...
Attached Images
File Type: png sa1_full.png
( 294.7 KB, 55 views)
 
File Type: png sa1_2secs.png
( 174.2 KB, 56 views)
 
File Type: png sa1_zoom16khz.png
( 108.1 KB, 51 views)
 
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  #25  
Old 2005-08-27, 02:10 AM
corsair corsair is offline
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Re: More study onto 32Khz DAT

The attachments here will be the 2nd of the 2 recordings.
Attached Images
File Type: png sa2_full.png
( 295.2 KB, 36 views)
 
File Type: png sa2_2secs.png
( 166.2 KB, 35 views)
 
File Type: png sa2_zoom16khz.png
( 73.8 KB, 38 views)
 
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