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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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  #1  
Old 2007-01-02, 01:15 AM
corsair corsair is offline
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ECM-MS907 > Sony MZ-NH900 (SP Mode)

The spectral for this particular source seems to hard limit at around 19kHz...
I wonder is this due to the limitation of this mic..... or is it lossy...
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  #2  
Old 2007-01-03, 10:56 AM
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

Hi-MD decks are also capable of recording and playback in using ATRAC codec (lossy) like old MD recorders, so that's what this looks like from what I can see in the blurry pic. could you upload another pic zoomed to 2 seconds but not shrunk & in preferably gif/png? also check here for known ATRAC SA screenshots for comparison. Info about this Hi-MD deck available over here.

either somebody made a mistake in their settings or perhaps they wanted to fit a full concert on one disc or something.
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  #3  
Old 2007-01-03, 11:01 AM
corsair corsair is offline
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

I used geryscale now....already zoomed to 2s and not reduced in size, and in GIF format.
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  #4  
Old 2007-01-03, 11:04 AM
corsair corsair is offline
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

This one is in its original color scheme.
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  #5  
Old 2007-01-03, 11:11 AM
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

looks just like ATRAC3plus Hi-SP (256kbit/s)

most ppl would accept this in a trade since its ATRAC (aud, right?) but imo it is just wrong to record lossy on a Hi-MD deck
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  #6  
Old 2007-01-03, 11:15 AM
corsair corsair is offline
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

Quote:
Originally Posted by Five
looks just like ATRAC3plus Hi-SP (256kbit/s)

most ppl would accept this in a trade since its ATRAC (aud, right?) but imo it is just wrong to record lossy on a Hi-MD deck

This is actually off a Muse torrent that I grabbed from here:

http://www.thetradersden.org/forums/...ad.php?t=32147
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  #7  
Old 2007-01-03, 11:32 AM
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

thanks for posting over there. could I get you to also generate the required ffp/st5 fingerprints for that show? its that guy's 1st post, I think he's still learning the ropes. Hopefully we can make friends with him and get him to change the recording quality setting in his deck.

here's what I was going to post before I saw that you beat me to it
Quote:
Originally Posted by Five
just wanted to warn everybody that this is lossy, appears to be ATRAC3plus Hi-SP (256kbit/s). very unfortunate that the full quality LPCM WAV was not used here.

more details available here.

I won't ban this one for being lossy since ATRAC AUD recordings are traditionally allowed to be traded, however I feel strongly that when a Hi-MD deck is used for recording, it should be used in teh highest quality setting (LPCM WAV 16Bit/44.1kHz).

could somebody please generate & post the required ffp in this thread (instructions in my signature below).
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  #8  
Old 2007-01-03, 11:35 AM
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

This is the ffp file I've generated. How would an ffp file be useful here?
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  #9  
Old 2007-01-03, 11:40 AM
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

for comparison when there are multiple copies of the same show in circulation. also, it can be used to verify that a conversion from SHN was done perfectly.

there's several shows I've downloaded multiple times since the announce text was different and it turned out to be a waste of time since the ffp (and therefore the audio) was identical but checksums weren't available for me in the thread.
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  #10  
Old 2007-01-11, 12:48 PM
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

Quote:
Originally Posted by Five
it is just wrong to record lossy on a Hi-MD deck
Not when your recorder develops a tendency to generate disc errors on PCM recordings, that in one case lead to an entire set being lost
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  #11  
Old 2007-01-11, 10:36 PM
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Re: ECM-MS907 > Sony MZ-NH900 (SP Mode)

okay, that could explain it then

its gotta be hard to go back to Atrac after recording 16/44.1 wav audio
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