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1
General Audio / Re: Is it all bull**** now?
Last post by bdunham7 -
Quote
Well, you are free to speculate about stuff that doesn't matter much if any, but for me, it's the stuff that does matter, as in #1:

OK, you misunderstand me a bit.  I'm not speculating, I'm curious.  I'm starting from the assumption that they DID solve this problem of driver linearity and I'd like to understand it a little bit, just like we do regular drivers.  And I'd gently point out that perhaps the reason you don't have to worry about it is that conventional driver technology is fairly mature.  I think you have to go pretty far down the scale nowadays to find a truly badly misdesigned driver product--do you agree? 

Are your speaker designs not conventional ported?  I have AR and have for years... 
3
Support - (fb2k) / Re: ---Strange message "directory not empty" since one week
Last post by zpoison -
Thank you
these are my coponents

Core (2018-07-24 10:54:48 UTC)
    foobar2000 core 1.4
foo_albumlist.dll (2018-07-24 10:54:02 UTC)
    Album List 4.6
foo_cdda.dll (2018-07-24 10:54:04 UTC)
    CD Audio Decoder 3.0
foo_chacon.dll (2016-12-26 05:13:12 UTC)
    Chacon 3
foo_comserver2.dll (2006-07-31 19:13:20 UTC)
    COM Automation server 0.7 alpha 6
foo_converter.dll (2018-07-24 10:54:04 UTC)
    Converter 1.5.3
foo_discogs.dll (2018-09-20 04:43:43 UTC)
    Discogs Tagger 2.14
foo_dop.dll (2011-06-28 17:25:35 UTC)
    iPod manager 0.6.9.7
foo_dsp_bs2b.dll (2009-06-08 16:30:06 UTC)
    bs2b 3.1.0
foo_dsp_eq.dll (2018-07-24 10:53:56 UTC)
    Equalizer 1.2.1
foo_dsp_soundtouch.dll (2018-02-02 08:01:53 UTC)
    SoundTouch DSP 0.1 (SSE)
foo_dsp_std.dll (2018-07-24 10:53:58 UTC)
    Standard DSP Array 1.3.1
foo_facets.dll (2011-08-19 00:06:16 UTC)
    Facets 1.0
foo_fileops.dll (2018-07-24 10:54:00 UTC)
    File Operations 2.3
foo_freedb2.dll (2018-07-24 10:54:14 UTC)
    Online Tagger 0.7
foo_input_dts.dll (2017-09-24 01:12:30 UTC)
    DTS decoder 0.5.3
foo_input_monkey.dll (2016-06-30 04:04:42 UTC)
    Monkey's Audio Decoder 2.1.7
foo_input_sacd.dll (2016-08-01 03:43:48 UTC)
    Super Audio CD Decoder 0.8.4
foo_input_std.dll (2018-07-24 10:54:34 UTC)
    FFmpeg Decoders 3.2.4
    Standard Input Array 1.0
foo_input_tak.dll (2016-08-22 12:09:51 UTC)
    TAK Decoder 0.4.7
foo_rgscan.dll (2018-07-24 10:54:10 UTC)
    ReplayGain Scanner 2.3
foo_run.dll (2016-06-30 04:27:14 UTC)
    Run services 0.3.7
foo_textdisplay.dll (2016-06-30 00:04:14 UTC)
    Text Display UI Element 1.1 beta 1
foo_ui_std.dll (2018-07-24 10:54:14 UTC)
    Default User Interface 0.9.5
foo_uie_albumlist.dll (2017-01-13 19:18:38 UTC)
    Album list panel 0.3.7
foo_uie_biography.dll (2010-12-11 13:47:22 UTC)
    Biography View 0.4.2.4
foo_uie_graphical_browser.dll (2017-01-17 21:51:43 UTC)
    Graphical Browser rev015
foo_uie_panel_splitter.dll (2009-12-09 20:16:12 UTC)
    Panel Stack Splitter 0.3.8.3(alpha)
foo_unpack.dll (2018-07-24 10:54:08 UTC)
    ZIP/GZIP/RAR Reader 1.8
----------------------------------------------------

Foobar version 1.4

process monitor log....I don't know how to make a log that will not be 200meg

4
Vinyl / Re: SweetVinyl SugarCube SC-1
Last post by DVDdoug -
I remember something like that from the "vinyl days".   I never actually saw one and I don't know how it worked, but there was a delay involved.   Probably a bucket brigade delay rather than A/D and D/A conversion.  And, I don't remember if it just muted the click or if it replaced it with the just-preceding or just-following sound.   And, it must have been out of my price range because I never considered buying one.

Quote
Only £1,555 for pleasure of no pops and clicks ;D
The price probably isn't out-of-line,  if you need such a thing...    It's expensive to design, manufacturer, market, and distribute in small quantities.    Plus, you don't want to sell it too cheap!   Audiophiles don't like cheap stuff...    The more it costs the more they want it!    (And, I assume this is for audiophiles.)

I'd probably pay that if we didn't have digital!     I spent a lot of money replacing my records with CDs for the same reason...  So I didn't have to listen to record noise.

 

5
General Audio / Re: Is it all bull**** now?
Last post by ajinfla -
Thanks for the read.  I agree with the conclusions, especially #3, which is relevant here. 

The design of the big pumpkin on the MBLs uses aluminum strips, flexed and then "filled" with rubbery pieces glued in.  You've never seen an aluminum spring, have you?  There's a reason!  Every conventional speaker has a spring force that returns the cone (or equivalent) to the center position.  It's only on midrange and lower drivers that you can demonstrate this with your fingers, but on the MBLs, the big pumpkin goes down to about 100 Hz.  I'm wondering what the spring force is and if it is linear.
Well, you are free to speculate about stuff that doesn't matter much if any, but for me, it's the stuff that does matter, as in #1:
Quote
1.  The perception of loudspeaker sound quality is dominated by linear distortions, which can be accurately quantified and predicted using a set of comprehensive anechoic frequency response measurements (see my previous posting here)
The data we have shows a rather uniform polar is expected.

That's actually remarkably uniform. Passive speaker too, a touch of DSP eq would make things even smoother. I think that's rather impressive engineering, not much else out there that can generate such a uniform field.
I've also done the Harman training (coupled with 40 yrs of speaker building, Klippel training, etc), so I'm not too shabby at detecting resonances. The MBLs do ok. Whatever your concern is about theoretical  "aluminum springs" etc, I don't share them, as I'm only concerned with what matters most audibly. Again, the MBLs are certainly "audiophile" priced, but in a rarity, there is actually some clever engineering going on. Yes they are going to be sold by folks who sell a lot of unadulterated nonsense also.

I found the midbass consistently unpleasant and boomy, however.  This was a demo in a listening room, so I would have expected them to be at their best, but I'm probably wrong about that too! 
Yes, that would be my only quibble, I find the bass quality to be sub-par to terrible, but that is true for about 95% of speakers (which are also ported boxes in rooms), for my tastes.
Unfortunately 30k cables won't solve that, but I'm sure he sells "traps" too.
9
General Audio / Re: Is it all bull**** now?
Last post by bdunham7 -
ajinfla;

I'll skip the quoting...

Nonsense?  Yes.  And a bad sales tactic, IMO (for the speakers anyway).  He could have said "I dunno.  They're German, and they're smart, I'm sure they got it right.  No idea how, though."   But cables? :o

Thanks for the read.  I agree with the conclusions, especially #3, which is relevant here.   I realize I wasn't clear--I was referring to the nonlinear distortion in the driver, not the overall response of the speaker.  I am assuming that you don't design or build drivers--correct me if I'm wrong--but as you likely know, drivers have been carefully developed and engineered over many years to have a linear, undistorted response.  Making sure voice coils are either completely underhung or overhung, designing the magnet for a uniform field, using a surround with appropriate qualities, using drivers in frequency ranges that avoid breakup modes, etc etc.  If you designed your own driver from scratch and weren't aware of all these issues, you'd likely make a bad product. 

The design of the big pumpkin on the MBLs uses aluminum strips, flexed and then "filled" with rubbery pieces glued in.  You've never seen an aluminum spring, have you?  There's a reason!  Every conventional speaker has a spring force that returns the cone (or equivalent) to the center position.  It's only on midrange and lower drivers that you can demonstrate this with your fingers, but on the MBLs, the big pumpkin goes down to about 100 Hz.  I'm wondering what the spring force is and if it is linear.

As far as the sound, these were the smaller models (116?) not the 101.  So the radial drivers only go down to 650 Hz, the remainder is handled by ported drivers on each side.  They had a spacious, omnidirectional sound, of course.  You could walk around and even behind or between them and they sounded good and the music was kind of all around you.  I found the midbass consistently unpleasant and boomy, however.  This was a demo in a listening room, so I would have expected them to be at their best, but I'm probably wrong about that too! 
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