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Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: spott on April 24, 2005, 05:09:32 PM

Title: Creating 24bit from 16/48 kHz??
Post by: spott on April 24, 2005, 05:09:32 PM
Ok, I just got this Dead show off of bt.etree.org - It claims to be a 24 bit remaster... Can this happen?? Aren't recordings only as good as the source (i.e. Cass 2 > DAT will always have some hiss).  Then I did some more snooping and found the Phil & Friends show http://www.archive.org/audio/etree-details-db.php?id=23029 that claims to do the same thing... Can anyone shed some light on this??  ???

Thanks,
Spott

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Text file from bt.etree.org

Grateful Dead
Orpheum Theatre
San Francisco, CA
July 16, 1976 Set 2

DVD-A 24/44 SBD+AUD Matrix Mix

Disc 1 - Set 2
01 [01:28] Tuning
02 [07:58] Playing In The Band >
03 [07:49] Stronger Than Dirt >
04 [08:07] Cosmic Charlie
05 [07:01] Samson & Delilah
06 [03:46] Space >
07 [05:22] Spanish Jam >
08 [03:51] Drums >
09 [07:39] The Wheel >
10 [04:48] Playing Reprise >
11 [08:50] Around & Around
12 [10:27] High Time
13 [00:50] Happy B-day Bill Graham
14 [09:52] Sugar Magnolia
TT [87:59]

---------------------------------------------------------

Source Info

SBD
SBD: Master Reel -> Master Dat (44.1k)

AUD
FOBalcony: MAC > DAT > CD
Recorded by Bob Menke using Sony ECM-280 mics >
Sony TC-152 from front of balcony

---------------------------------------------------------

Tech Notes

SHNs were decoded to wave and SF 6.0 was used to reassemble
the tracks back to 1 long wave.  CEP2.0 was used to align &
synch both of the sources.  CEP was used to do the multitrack
mixdown to 24/44.  DiscWelder was used to author and create
the DVD-Audio.  This is a 55% SBD, 45% AUD mix. 
- Mixed by dan@am-dig.com
- FLAC conversion 19-JAN-2005
- Artwork by dan@am-dig.com 300dpi - For best results
print at the highest resolution onto glossy photo paper.
Design for use with a clear slim DVD case (inner and outer
DVD artwork included).

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Title: Re: Creating 24bit from 16/48 kHz??
Post by: dmonterisi on April 24, 2005, 05:19:49 PM
check this thread, your head may explode though.

http://taperssection.com/index.php?topic=34195.0
Title: Re: Creating 24bit from 16/48 kHz??
Post by: krebsy on April 24, 2005, 05:36:42 PM
The remasters this guy has done have created some real controversy.  I remember hearing some nasty phase issues in the later part of this set, though.  Sounded like the two sources were drifting out of sync...
Title: Re: Creating 24bit from 16/48 kHz??
Post by: spott on April 24, 2005, 08:42:44 PM
Oy vay, I think all that matzoh has gone to my brain... no upsampling occurs but it's 24 bit wise, weird
Title: Re: Creating 24bit from 16/48 kHz??
Post by: Brian Skalinder on April 25, 2005, 12:30:08 AM
Quote from: spott on April 24, 2005, 08:42:44 PM
no upsampling occurs but it's 24 bit wise, weird

Not weird, false.  The 16-bit sources are upsampled to 32-bit by the s/w used to mix down the multiple sources, and then dithered back down to 24-bit.