Thanks Triode and Bob!
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___
audiop
Triode wrote:
> - it does not start an effects jive_alsa process (it is assumed users
> don't want to hear the effects processing)
> - it bypasses the alsa plug layer and uses the spdif output "TXRX"
> directly, simplifying the amout of processing required between jive_alsa
> and the spdif output
I posted over in 3rd Party Software about an odd problem I just had with
ImpulsePrep.
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milosz;610681 Wrote:
> OK, XP SP3. I'll see if I can get Inguz working on my Win 7 - 64 SB
> server
I have it working on mine. SB Server version 7.5.1 - r30611.
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tonyptony;608544 Wrote:
> The answer may be obvious to everyone else, and if so I guess I'm a
> dummy. But for fear of diverting the current topic of disagreement I'd
> really like to (again) ask for some help.
Okay, I'm even more confused. I untar'd the soundcheck
tonyptony;607837 Wrote:
> I may have missed this, but has anyone else found the digital volume of
> the Touch locked at 50% after applying the 2.0 mods? I did a full hard
> button reset, then install of 2.0. It went fine. I did all of the
> recommended Soundcheck tweaks, but I d
rbl, what problems are you experiencing? What version of SB Server are
you using?
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t the prep.log file it indicated that the distance and timing
for the right file were both 0. I opened that sweep file in Audacity
and it looks fine, not much different than the left file (which showed
valid numbers in the log file). Anybody know what gives?
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Wayne at Bolder is offering digital and analog mods to the Touch.
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Erik, are you saying that you changed the settings to do server based
decoding to WAV before sending to the SB?
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I've been following the Touch info while still using my SB3 and Duet and
was wondering...
Sean (or John S. or Phil L. if you've measured it), what is the output
return loss from the Touch SPDIF? And, if the numbers are available,
over what bandwidth?
--
Phil Leigh;377221 Wrote:
> Next year I will be re-evaluating the Inguz-style solution...
My comment is OT, I know, but as an Inguz user I am wondering what this
menas...?
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ultiple places.
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___
Phil Leigh;246921 Wrote:
> Aren't there published revision notes for the firmware? (or is that a
> secret?)
Phil, I tried looking around but could not find anything like that. I
may have missed it, though.
--
tput
stream. Unless you can tell me otherwise, I have not been able to find
that level of design disclosure for the FW (which would either confirm
or deny) anywhere on the website . So I'm not sure if your statement of
"perceived improvement"
not a factor.
Hoping someone from Slimdevices will chime in to tell us what may have
happened with v.83.
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Hi Pat. I was wondering how long it would take for you to get here! :-)
This should be fun...
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Isn't this stuff great? :-o
I remember years ago being so unhappy that I couldn't afford an Audio
Control C-101 equalizer. Times sure have changed!
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Nice to see this is working. I'd be curious to know how you think the
17-band EQ sounds compared to Minimum. It looks like Minimum provides a
somewhat flatter response across the mid-band.
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tonyptony'
the
corrections that you've shown us here, whether you'd get a similar
actual response.
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d may be right in the
crossover possibly being an issue. You might want to let that run out a
bit higher in frequency (if possible) and let the DRC handle clearing up
the mids. If you have any luck with that, I think finding the right
target curve will get you a pretty decent correction.
And now,
inguz;231073 Wrote:
> No... unless it's *way* low, ...)
That's kind of a relative phrase, Hugh. :) How low might that be?
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Makes sense. Does reducing the gain like this hurt things in any way?
Reduction in effective bits, or anything like that?
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View
that I actually had to
deselect it from File Types in order to eliminate this problem
originally.
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Damn! I had two instances of Slimserver installs! Only one is actually
running, but I was going to the older (defunct) install to adjust the
config file. Thanks for that suggestion, Hugh. Talk about brain dead!
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bump...
Hugh, I'm hoping the log file will tell you something about my problem.
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e result of processing
> Impulse_Response_Measured with the DRC correction filter - they should
> pretty much reflect the filter's target curve and the mic cal curve.
This is getting to be something of a pain. :-(
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-
nuhi;230770 Wrote:
> muski, so it is confirmed, without a calibration the ECM8k is almost
> useless :(
This gets more and more interesting. I sent my ECM8000 out as well to
get calibrated. I'll post my cal curve as soon as I get it back.
--
20070927211534: 00:04:20:06:3f:40 CLIPPING+
20070927211534: 00:04:20:06:3f:40 CLIPPING-
20070927211535: 00:04:20:06:3f:40 CLIPPING+
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darrenyeats;230496 Wrote:
> Clipping doesn't sound like that. It's distortion, like when someone
> sings into a mic too loudly. It doesn't change the pace of the music.
>
> Which "config file" are you editing exactly?
> Dar
w.audiocircle.com/circles/index.php?topic=45590.0
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Yeah, that's what I did, Kim, but it didn't work. The log kept saying
-16dB.
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Ah. I didn't do that. The instructions said to just FF to the next
track. Although at one point I did try stopping and restarting
Slimserver, but I did not kill the inguz process.
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mselves?
And, is there some trick to using the Gain setting that I might be
missing?
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. That way we can look at
the measured and test responses at one time.
Regarding your curves, however, I agree that's a head scratcher. If
Hugh is right that means your measured curve should look quite a bit
different.
I know I should know the answer to this, but now what do we do?
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Or is it there primarily for
design "completeness"?
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sponses seem to follow
> the mic curve. The graph shows bk3spline in blue, mic cal in black and
> erbTestConv in mustard.
This sounds like a great question for Hugh. If you're right it throws a
real monkey wrench in trying to help learn what's really going on by
using t
s internal mic cal file, would you? If DRC is generating
these impulse files with its own mic calibration file accounted for,
you'd want to see that direct information in REQW. If there was a way
to even view it with REQW's own cal file you'd be doing double
correction, wouldn't
inguz;229908 Wrote:
> No, "sweep with EQ" runs the whole processing pipeline.
Interesting. mortod, without having this info cloud your judgement,
what did you hear when you implemented the 11 band equalization?
reflected sound
that cannot be directly controlled by changing the driver response.
It's not that RC won't work, but it seems to me that might explain why
it may not work as well. There would seem to be a more direct
change->effect prediction capability with direct
back. I sent it
off to have it calibrated.
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mortod, you wouldn't happen to have a before and after sweep that you
could post? Would love to see what happened.
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Chris, do you need to XO version to do things like creating target
curves or correcting small ranges of suckouts or bumps? Also, does it
do phase as well as gain?
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Well, I'm sending off my ECM8000 today to be calibrated. Between the
price of the mic and the cal it's still cheaper than a M30 (which I'd
still love to have, BTW).
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Nuhi, I'm wondering about this technique. Wouldn't this method be
influenced by the room modes generated?
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Wow, AudioLense looks great. Seems to provide a whole lot of flexibility
in tweaking the correction curves. Might be worth it.
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slopes, on the order of 10-20 dB as you approach 20KHz. This
seems to be quite the opposite of yours. I wonder why this is?
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View th
fect things too
badly.
+---+
|Filename: mic_curves.jpg |
|Download: http://forums.slimdevices.com/attachment.php?attachmentid=3351|
+---+
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---
A. The cal file it uses is, once again, similar but not quite
close enough. Annoying.
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7;t
be too much of an impact across the bulk of the audio band.
I got a line on Audiocircle of someone who calibrates these mics, but I
never got a response to my email. I would like to get a cal for my own
mic.
--
ing a lot by trying to understand what I'm
seeing and connecting it to what I'm hearing.
If you want to take the plunge into "curve-trace-itis" say the word and
I can walk you through using REQW, although there's a ton of info on
hometheatershack th
27;t know, however. Just out
curiosity, which filter are you using? Also, can you post your measured
impulse response and the test convolution for the filter you are using?
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itude starting at maybe 100Hz back to 30-40Hz. Or
tilt the extreme high end down a bit. What's odd is that your extreme
predicted curve already looks like that, while my curves are generally
more flat.
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tonyp
ister Pig, I probably missed this, but for the FLAC files are you
doing FLAC->FLAC or FLAC->WAV? Also, I'd be curious to find out what
would happen if you took the Indian Woman track and converted it back
to WAV with something like dBPoweramp or the FLAC Frontend and seeing
what happens
a reason to use the UPCI and the JISCO together? I
thought the JISCO supercedes the UPCI.
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then
averaging. When you open the traces, go to Trace Adjustments and select
1/6 under Smoothing. It'll make you feel a lot better. :-) Then go to
the Averaging panel and average the two channels.
The Filtered measurement is close, but I always try to compare it to
the REQW met
t with 1/6 octave smoothing. I don't
know how useful it is to look at these things at 1/24 octave.
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d is
> all due to comb-filtering.
Thanks Hugh! I'll get the latest version and give this a try.
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entid=3318|
+---+
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___
audi
ear to me is how the
two curves match up to what you wrote here. The light is not going on
in my head. :-)
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Vi
tachmentid=3309|
+---+
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e sounds better than the other.
If you can pick up the subtle differences between FLAC and WAV as
you've stated, you may be able to identify among these two methods.
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Great! Thanks.
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htrd;222444 Wrote:
> All of the stock target curves did leave the bass feeling a little weak,
> happily solved by adding a 0dB to 8dB ramp between 80Hz and 30Hz.
Toby, how did you do this?
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tonyp
y happy with it.
Listen to the first track of the Beatles LOVE CD. It's an excellent
test of spatial presentation, and one which easily shows the limitation
of the SB3.
No one misunderstand me, I LOVE my SB3, but even with the BOLDER mods
it doesn't ou
Hugh, if you go to hometheatershack you can get a ton of info about the
Behringer.
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Hugh, I see your ftp service is back. Files are being uploaded now.
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I try every so often until I get them through to you. Will send a note
when that happens.
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Hmm, I keep getting a "Connection closed by remote host"
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You mean the left and right files?
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Bump.
Hugh, hope you have some thoughts on Post #93.
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difference from 20-200Hz is significant.
+---+
|Filename: soft_flat_avg.jpg|
|Download: http://forums.slimdevices.com/attachment.php?attachmentid=2927|
+---
Sounds like a bug, then.
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en't
> managed to reproduce here. I think it's a bug.
How is one normally supposed to lock in the selected Flatness level?
Maybe I'm not doing it right.
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to understand what I'm hearing... nice little
program you've turned out!
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ction points which may be altering the signal by 10dB or
more. Ultimately I will pick what I think sounds best, but in theory
(assuming no clipping occurs) would the tighter curves be preferred?
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tachmentid=2901|
+---+
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. Then the relative boost would be less, yes?
Not worried about losing a little gain; I have some to spare in my
system.
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d for test
are not as tightly controlled as the others. I wasn't sure if those
really well controlled curves might have a hidden cost associated with
them.
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gital correction at the source? I mean, we're talking about
altering the source signal before it even gets converted to analog. So
is this even relevant anymore? I can't see how it can be.
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|
+---+
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=2895|
+---+
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___
a
See my update in Post #1.
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Hugh, how wide are the correction filters in Inguz? I guess I have the
same question for the equalizer.
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not really. It sounded much more like it was favoring the lower
end, but I may have to listen to it again (when I get home). Maybe
listen to an uncorrected cut on my speakers first, to get calibrated.
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-
briefly try the
Test_Convolution file with Flatness set to 5 and it sounded closer to
the non-eq'd version (I think, I was getting a little loopy at that
point).
I will say that in all cases of using correction the soundstage of the
presentation was much more apparent.
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-
I'm using a M-Audio MobilePre. Haven't had any trouble with it.
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ond opinion :-)
So should the third test be, for example, normal_direct or
normal_direct_Test_Convolution?
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cross many
points would be more in line with getting a real assessment of the
response characteristics, more so than a direct firing speaker.
I'll give your suggestion a try! It looks like it's going to rain here
today, so I have a ready made excuse to stay in!
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--
I can't explain the difference after 2.5KHz.
+---+
|Filename: drc_plus_reqw1.jpg |
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+---
Regards
> Phil
No disagreement there!
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at's right in line with what
you're saying.
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___
there's not enough wall to constitute "side walls").
I had not yet to this point tried the "Flatness" setting. Will be sure
to give it a try. Your point about flat response and higher frequencies
is well taken; that's consistent with what I think I'm hearing.
-
so there's very little direct radiation to the rear wall.
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ction filter. Not to say my uncorrected setup sounds
like the live performance either, but it does sound better than the
post processed version.
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+---+
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my transport as a "reference"
point. Don't do that now.
And I had the unmodded SB3 for a good 8 months before getting it
modded, more than enough time to get used to it.
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The latter.
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had.
> Could you tell us what the exact command line you typed was? It could be
> something as simple as not having gotten the command line right.
I typed in
ImpulsePrep /L left.wav /R right.wav >prep.log
like it said on Hugh's website.
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