[rescue] vinyl - wav - cd

Curtis H. Wilbar Jr. rescue at hawkmountain.net
Sat Jun 28 22:13:42 CDT 2003

I've done this a couple of times now... just not with an Indigo 2...
(I didn't have an SGI at that time).  I used a PC, but the theory is
of course all the same.

What I found worked is record all into one wav file (there is a pause
feature on the software I was using ... I used that during the change
of sides).

Once I had it all in one wave file, I listened to it and wrote down
the times where I wanted the tracks.... I then used Goldenhawk
CDRWIN and built a tracklist file.... makes a nice CD, and much easier
than recording invidual tracks, editing wavs, etc.

I also go through a Dynamic Range Expander (Pioneer... 3 band)
which I carefully tune for the music to give vinyl a bit more depth.
(just got to be carefull not to overdo it or the music sounds like it
is breathing !).

I'll have to try some of this an I2, Indy, or Octane sometime.   I'd
imagine the SGI's have better A->D circuitry than most PC sound cards
(although I picked my sound card based on a review that showed it to
be pretty flat across the frequency range (for reference it is a
Soundblaster 128)).

I have had pretty nice results.

Have fun,

  -- Curt
>From: "Carl R. Friend" <crfriend at rcn.com>
>   Dave V writes:
>> A buddy just gave me a stack of classic rock albums and a very high end
>> turntable. 
>   Good.  Save the music!  (Even if it means "blowing it to bits".)
>> Has anyone, or does anyone know the drill to get these off vinyl, and
>> into wave format? I have an Indigo2 (teal). My guess is that I should
>> convert the audio jacks on the I2 to 4 channels, and use the sound
>> mixer, but from there, I am lost.
>   You'll do just fine by using the standard 2-channel (stereo)
>capability of the I2.  You'll probably wind up using the "Sound
>Editor" tool that comes stock with IRIX unless you have something
>more user-friendly.  Record at 44.1 kHz and make *real* sure that
>you're not clipping (use the meters in "audiopanel") because
>digital recorders *really* hate that (there are no "ballistics"
>as there are in old-style analogue recorders so when it
>clips -- IT CLIPS).  You'll want to record in AIFF mode then
>convert (using Sox or something akin to it) to ".wav".  Where
>possible, save the file locally (as opposed to on an NFS mount)
>since the data are coming in in real-time.
>   Simply jack the "Tape Out" bits to the I2's line input; the RIAA EQ
>bits will already be done by virtue of the "Phono In" circuitry of
>your preamp (it *does* have one, doesn't it?).  Plug the "line out"
>jacks to the "Tape In" and use the I2 exactly like a tape deck.
>   Best practise would seem to indicate recording LP tracks as discrete
>files on the computer for easy access later on.
>   If you don't care too much about the absolute quality of the end
>product, you can rip to MP3 format at 256k or so using something like
>bladeenc.  I've done that in the past, to great advantage, using
>an Indy.
>   Of course if the Hollywood Mafia get wind of your activities
>you may get your tail in a sling.  ;-)  They are the ones, after
>all, that are trying to outlaw non-licensed (read, "non-crippled")
>A-D converters.
>| Carl Richard Friend (UNIX Sysadmin)            | West Boylston       |
>| Minicomputer Collector / Enthusiast            | Massachusetts, USA  |
>| mailto:crfriend at rcn.com                        +---------------------+
>| http://users.rcn.com/crfriend/museum           | ICBM: 42:22N 71:47W |
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