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scott
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The recording item
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Jul 18 11:30 UTC 2003 |
This is an item to talk about studio stuff, since that's part of the business
I'm getting back into, and in particular an area where I'm currently working
to educate myself better. To that end I'm building a Linux-based PC for
multitrack recording, and playing around with microphones and such.
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| 20 responses total. |
scott
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response 1 of 20:
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Jul 18 11:30 UTC 2003 |
I went to Guitar Center over in Canton to try out some inexpensive studio
monitors. GC, like most big-box stores, rather weird and most of the
employees aren't very useful. However, there's a guy there in the audio
department who looks & sounds like Al Bundy but knows his shit and takes his
job seriously - a pleasant surprise. Anyway, I ended up comparing three
nearly-identical self-amplified speakers from Event, the TR8 I'd been reading
about, the slightly older PS8, and the product-line flagship 20/20bas. About
$100 total price difference, but it was pretty interesting what little
differences I could hear. The 20/20bas didn't reach as high, which makes a
little bit of sense being the oldest design. The TR8 is getting a lot
positive reviews, especially given its price ($250-300/ea street price). But
the TR8 had some kind of nastiness in the lower highs, and also didn't seem
to have the headroom. The PS8 turned out to be the winner, and I got the pair
for $600 since they were being discontinued.
Pretty cool listening to them last night, checking out some different stuff.
I'd auditioned at the store with a couple of CDs, Aimee Mann's "Whatever" and
Thomas Dolby's "The Flat Earth" (most of my CDs are in storage at the moment,
or "Aja" would certainly have been in there). It's definitely an improvement
to have good speakers; I was hearing the kind of stuff I'd be able to hear
in the headphones. MiniDiscs from vinyl definitely sounded squashed, narrow,
and missing highs & lows. May have to spring for a CD version of "Born to
Run" pretty soon.
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orinoco
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response 2 of 20:
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Jul 18 22:52 UTC 2003 |
("Headroom"?)
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jaklumen
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response 3 of 20:
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Jul 19 02:46 UTC 2003 |
Explain a little bit more about the Linux aps. All I know is PC and
Mac applications (mostly Master Tracks for the latter). I didn't
remember hearing about any big differences, so I assumed it was just
individual preferences. I thought Linux was primarily a tool for
servers, so I'd be interested how it works in the studio.
p.s. that reminds me, goose, you had questions about PowerScript...
somewhat unrelated to this...
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scott
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response 4 of 20:
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Jul 19 10:44 UTC 2003 |
"headroom" is how much power you've got which you don't usually use. Makes
a difference on occasional loud bits.
The main Linux app I want to try out is called "Ardour"; it does multitrack
recording, effects, mixdown, etc. There are other packages, not as current.
"Ecasound" has been gradually growing for years, and I should check that out
as well.
Linux is great for servers, but these days it's quite nice on the desktop as
well. I've been using it at home for 3-4 years and it keeps getting better
and better. By contrast Windows gets more and more loaded down with junk,
especially whenever you install something - then somehow you get more junk
you don't need and most likely don't want.
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scott
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response 5 of 20:
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Jul 23 19:30 UTC 2003 |
New PC for audio, planning on using Linux-based recording apps. What I got
was a small-size "ShuttleX" PC, a DVD+RW drive for backups, a gig of RAM, 80Mb
disk. Pro sound card later - I'm going to get things working with the cheapy
builtin sound before dropping $500+.
Currently have installed RedHat 9.0 (also played a bit with Mandrake 9.1,
first choice for elegance but not for compatibility with drivers and special
apps). After getting the NVidia driver (binary only) installed to support
the ethernet port, I'm about to try installing "Linux Audio Workstation"
which patches RedHat for audio use. Then I'll try to get Ardour, a multitrack
recording app installed.
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scott
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response 6 of 20:
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Jul 25 12:25 UTC 2003 |
Got LAW installed - ugly. It installs easily enough, and does useful things
like apply the low-latency kernel patch. However, it also installs an older
(24.20) kernel with some useful things disabled (not sure if that's an issue
with the kernel version or how it gets configured). Plus it wants to use a
rather ugly version of the Windowmaker UI. I think I'm going to go ahead and
install Ardour on top to see what happens, then I'm going to start from
scratching installing things by hand this time.
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scott
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response 7 of 20:
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Jul 26 20:29 UTC 2003 |
Decided LAW was just to clunky, and that I should just try installing the
support stuff for Ardour myself and see what happens. I'm going to hold off
installing the low-latency kernel patch, although after today I think that
shouldn't be a big deal to do.
Anyway, I reinstalled Red Hat and went for the first package - ALSA (advanced
Linux Sound Architecture). The basic motherboard sound in my computer is
supported, and I found a nice set of installation notes from the sound card
support page for ALSA (big list of supported cards)
(http://www.alsa-project.org/)
Had to follow the notes on a couple of tricky sections, like adding stuff to
/etc/modules.conf and adding a call to a startup script (loads the kernel
modules for the sound card and alsa) to /etc/rc.d/rc.local so that everything
would reappear when rebooting the computer.
It works! Basically a few command-line and text screens, but I can get into
a mixer for the ins & outs, do bare-bones recording & playback. The sound
has surround outputs, which I couldn't manage to access. Regular stereo
output and the optical spdif outputs worked, and I could record from the line
input.
Enough for today.
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scott
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response 8 of 20:
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Jul 27 16:50 UTC 2003 |
Got JACK installed OK, but Ardour got me into a "package dependency spiral
of doom", at least enough to make me take a long break. Maybe I'll start over
with the rpms instead of the source tarballs and see if those are in better
shape. For Red Hat it shouldn't matter.
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scott
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response 9 of 20:
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Jul 27 21:52 UTC 2003 |
A few hours break on a Sunday afternoon, and I got my brain working again.
Turned out I only needed a couple more things: ladspa and libsamplerate.
Getting those made & installed freed everything else up, although I did have
to remake jack before ardour's configure script would recognize it. I also
had to add an environment variable for something else to be correctly
found.
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scott
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response 10 of 20:
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Jul 28 12:18 UTC 2003 |
Ah, this Internet stuff is wonderful. I got ardour to make, but was getting
an error message whenI tried to start it. First search on Google turned up
the answer, although I haven't fired the box up yet this morning to test it.
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scott
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response 11 of 20:
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Jul 28 13:08 UTC 2003 |
Hot damn, it works! I was able to record something through the line-in, play
it back, and a apply a couple of very basic plugin effects.
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scott
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response 12 of 20:
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Jul 29 01:33 UTC 2003 |
A few annoying problems and a plot twist or two.
I'd been having some occasional problems, a few crashes, and other things like
recording mysteriously stopping after a variable amount of time with no error
message. I decided to go ahead and try to get the "low latency" kernel stuff
installed, but couldn't get the patch to work. Turns out at least some of
the latency patch is already in the Red Hat 9.0 kernel, and apparently enabled
although I don't know how to test that.
Tomorrow I'm going to start over from scratch, using rpms instead of source
tarballs for the audio stuff.
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scott
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response 13 of 20:
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Jul 29 01:43 UTC 2003 |
After getting frustrated with the recording software (I'd managed to record
some stuff and even get a couple tracks down), I already had a couple mics
and the mixer set up so I decided to grab my MiniDisc recorders instead.
Bouncing back and forth, just like with two cassette decks back in high
school. I've been working on "If" by Bread recently, so I put down 4 acoustic
guitar tracks and then a couple vocal tracks. The guitar stuff was a bit
clumsy but overall pretty good, needing a bit different arrangement since the
arpeggiated parts get rather ominous when stacked up a bit. Vocals, different
story. I definitely need to get back to regular voice practice! This tune
is also a hair below my best range, so maybe I'll try to push it up a couple
frets with a guitar capo or something. That or try doing Van Morrison's
"Moondance" which I've got more practice on.
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scott
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response 14 of 20:
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Aug 10 21:50 UTC 2003 |
OK, I'm finally back at it again. Another fresh install of Red Hat, and I'm
going to try installing from source tarballs again (using rpms got me into
another annoying dependency situation), this time with more little tips I've
picked up from the Ardour mailing list.
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jor
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response 15 of 20:
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Aug 31 00:33 UTC 2003 |
(nice to see an Aja fan)
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scott
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response 16 of 20:
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Oct 29 19:39 UTC 2003 |
Too long of a break...
I installed SuSE 8.something on my old computer, and got Audacity running
after a bit of fiddling. It works, but has some clicks recorded on each track
(probably from latency problems).
I've learned from the Ardor mailing list that my soundcard (cheap Soundblaster
clone) tends to have more issues than a pro audio card. So, time to spend
some money on a decent soundcard.
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scott
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response 17 of 20:
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Dec 1 22:57 UTC 2003 |
Finally, I bought a real sound card, an M-Audio Delta 44. 4 inputs, 4
outputs. This one seems fairly popular among Ardour users. After I've
finished a small project on my old PC I'm going to brain-wipe it, install the
new card and Windows, and play around with Windows stuff for a bit. Then I'll
start back on Ardour again.
I've heard that Soundblaster-type cards tend to cause a lot of clicks/dropouts
in Alsa/Ardour, probably due to the amount of support they need from the CPU.
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scott
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response 18 of 20:
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Dec 12 15:23 UTC 2003 |
Grrr. Still getting low-level problems. However, with a promised live
recording coming up Sunday, I realized that the lowest level, ALSA, has a
couple little record and play utilities probably meant for testing. However,
in the grand tradition of little Linux apps, all sorts of formats and inputs
are supported. So I can easily do 4 channel recording in DAT format, so far
with no problems. No fancy editing available, but that's OK.
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scott
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response 19 of 20:
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Apr 30 23:55 UTC 2004 |
Wow, it's been a while.
The live recording had a few glitches, but turned out OK. More problems with
microphones and with something broken inside the piano than with the computer,
anyway.
More recently I used the apt-get stuf at Planet CCRMA (part of Stanford) to
get Ardour running better. Still some CPU and memory usage issues, but I've
managed to get some stuff done. Learned a lot about using Ardour, which is
pretty nice. Of late my focus has been more about getting decent sounds from
my own playing than anything else. You can check out a recent attempt at
http://www.scotthelmke.com/Moondance-3.mp3
I should add that most of it was recorded in very few takes, so the
performances could be a lot better. By the end I was really trying to get
great vocals, which is why the groove is a flaky.
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scott
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response 20 of 20:
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Jun 6 12:21 UTC 2004 |
Finally somebody did it - a live CD Linux distribution for audio & video.
http://www.agnula.org or http://www.demudi.org
A "live CD distribution" is a bootable CD which runs a complete Linux system,
including applications, cleverly compressed to fit on one CD. I've just
played around with this one a little bit so far, but it does a lot of the
nasty work of getting the low-latency kernel and the sound card drivers for
you. So aside from learning some simple application stuff it's a running
audio system, including Ardour (complete with DSP plugins!). Very cool.
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