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double blind testing
 

offline spammer from CITY OF LONDON (Jamaica) on 2013-04-22 20:49 [#02454605]
Points: 160 Status: Addict



for those of you who swear by the "analog sound" etc. have
you ever done a DBT vs. computer synthesis to verify that
the difference even exists? i bet it's placebo effect a lot
of the time.


 

offline EpicMegatrax from Greatest Hits on 2013-04-22 21:18 [#02454607]
Points: 25264 Status: Regular



after using hardware for a few years, some noises in my old
VST tracks really bug me. other noises are still OK. i guess
the bottom line is that VSTs don't have to sound bad, but
they will if you aren't careful.


 

offline listen2meTalk on 2013-04-22 21:22 [#02454608]
Points: 575 Status: Addict



Because of modern computing power vsts are now more precise
than analog instruments and, in a sense, more analog.


 

offline EpicMegatrax from Greatest Hits on 2013-04-22 21:32 [#02454610]
Points: 25264 Status: Regular



is this your opinion as an expert coder of 20-line python
scripts?


 

offline steve mcqueen from caerdydd (United Kingdom) on 2013-04-22 22:26 [#02454615]
Points: 6531 Status: Addict



oooh,handbags


 

offline steve mcqueen from caerdydd (United Kingdom) on 2013-04-22 22:32 [#02454616]
Points: 6531 Status: Addict



its not a remarkable skill to be able to tell the
difference, and if you can't it doesnt matter ( i can't
either )... like some people are into wine and know where
it comes from & all that by tasting it


 

offline steve mcqueen from caerdydd (United Kingdom) on 2013-04-22 22:34 [#02454617]
Points: 6531 Status: Addict



as for 'swearing by it' that's like turning ur nose up at
the table wine
METAPHORS,ACE


 

offline steve mcqueen from caerdydd (United Kingdom) on 2013-04-22 22:35 [#02454618]
Points: 6531 Status: Addict



though i just did compare digital shit to cheap shit i
suppose,which i didn't mean to, but is true now...ish


 

offline listen2meTalk on 2013-04-22 22:50 [#02454620]
Points: 575 Status: Addict | Followup to EpicMegatrax: #02454610



Vsts are realer than analog because they are more precise
waveforms


 

offline spammer from CITY OF LONDON (Jamaica) on 2013-04-23 07:49 [#02454631]
Points: 160 Status: Addict | Followup to steve mcqueen: #02454616



i think most wine snobs are full of shit as well. plenty of
studies around to prove it. same with audiophiles which i
would imagine extends to tone snobs as well.

i could see people preferring analog as it's a more limited
medium though. all art comes through limitations after all.


 

offline EpicMegatrax from Greatest Hits on 2013-04-23 08:54 [#02454633]
Points: 25264 Status: Regular



what makes a sounds aesthetically pleasant is entirely
independent of analog vs. digital or hardware vs. vst.....

i don't see magical purity in analog like some do, but you
have to try genuinely hard to get a bad noise out of the
sh101, whereas it's easy to get crappy thin synth cheese out
of any computer. it's why a lot of stupid people blather on
about analog

as for wine: i can tell the difference between $7 and $25
wine and $50 wine, but beyond that it smacks of people
arguing about the different D/A converters on yamaha's
various FM synths. it's the same with mp3: 96kbit mp3 is
obviously shit, 192 is a much tougher call, 320/FLAC is
overkill for almost everything... but if you have the disk
space, why the fuck not?


 

offline Ceri JC from Jefferson City (United States) on 2013-04-23 09:42 [#02454636]
Points: 23533 Status: Moderator | Followup to EpicMegatrax: #02454633 | Show recordbag



What EpicMegatrax said.

Getting a "good sound" with Analogue is considerably easier
and dare I say it, less skillful, than with a computer. I
have done lots of Blind Testing (DBTs via the internet are a
bit overkill) and generally can tell correctly about 60% of
the time (you'd get 50% of the time by chance). If I
struggle to hear the difference, the majority of people who
hear the music will never know the difference. Yes, I don't
doubt there are engineers/producers out there who can
identify it with a better hit rate, but they're <0.1% of the
end 'consumers'.

I ultimately make music to entertain me. If I can't tell the
difference and I like it, mission successful.


 

offline jnasato from 777gogogo (Japan) on 2013-04-23 10:46 [#02454640]
Points: 3393 Status: Regular | Show recordbag



My portable music player etches grooves onto vinyl in
real-time from my iPod and then outputs needle audio through
vacuum tube amps made by a blind man in the mountains of
Denmark.

So all my walking music is so lush and analogy and yummy and
poppy and cracky and heroiny.


 

offline EpicMegatrax from Greatest Hits on 2013-04-23 11:01 [#02454644]
Points: 25264 Status: Regular



i dunno, i think the dazzle of high-quality gear combines
with ignorance and you get lots of nonsense. tubes can sound
real nice. not all tubes sound nice. and there are things
that sound nicer than tubes (like, for example, the sound of
a black lab dog running full tilt on tarmac. i love that
sound).


 

offline listen2meTalk on 2013-04-23 17:27 [#02454678]
Points: 575 Status: Addict



You all are missing the point.

VST technology uses newer engineering practices that weren't
yet developed when analog synthesizers were being designed.
The new technology allows for better waveforms, crisper
highs and thundering lows.


 

offline spammer from CITY OF LONDON (Jamaica) on 2013-04-23 19:15 [#02454684]
Points: 160 Status: Addict



yeah i hear with digital you can get bass that's sub-DC even


 

offline fleetmouse from Horny for Truth on 2013-04-23 19:18 [#02454685]
Points: 18042 Status: Lurker



I heard about this guy who made a face when discussing
digital versus analog and someone hit him in the head and
his face stayed like that forever. :-(((


 

offline listen2meTalk on 2013-04-23 20:16 [#02454687]
Points: 575 Status: Addict | Followup to fleetmouse: #02454685



I love the Kids in the Hall


 

offline dave_g from United Kingdom on 2013-04-23 20:20 [#02454690]
Points: 3372 Status: Lurker



Ha, this old chestnut again.

As an electronic engineer I could bore you to death from a
thousand yards with the technical stuff, so I will try to
keep it brief.

Every single analogue component will generate some kind of
distortion, will vary with temperature and age, and will
pick up interference to some degree.
All of these factors mean that the electron flow is never
ever the same.
Whether most of these effects are audible is another matter,
but they are certainly occurring!

Digital on the other hand is largely immune to these so the
sound will tend not to accumulate these analogue
"imperfections" as long as it is in the digital domain.
Some digital systems attempt to model the first order (i.e.
simplest and most obvious) analogue imperfections
mathematically which can sometimes sound remarkably good.
As you can imagine, the better the digital model then the
"better" it sounds.

A simple model I have just imagined is a sawtooth waveform
below:
Starting value of x equals 255.
Start loop:
if x equals 0 then set x to 255.
otherwise subtract 1 from x.
wait for some amount of time.
Go to start of loop.

This gives an 8-bit sawtooth.
Feed the x value to a DAC and hey presto you are a synth
designer!
The frequency is altered by waiting for more or less time.

To model a slightly wonky analogue oscillator just use a
random number generator to alter the subtraction or wait
time (or both). e.g. sometimes subtract 2 or 0, or wait
slightly longer/ shorter time.
This adds dynamic movement to an otherwise static waveform.

Really I think the debate needs to be reclassified as
dynamic v static sound.



 

offline Squawk on 2013-04-23 21:31 [#02454692]
Points: 222 Status: Lurker



vstalogs have crispier lows and more bassy high end than
analog


 

offline listen2meTalk on 2013-04-23 23:02 [#02454708]
Points: 575 Status: Addict | Followup to Squawk: #02454692



See the hawk knows what I'm talking about. Analog circuits
simply don't have the bandwidth to put out harmonics like
those generated by today's Vsts. Analog may be fun to
"tweak" but only two parameters can bw modified at a time.

I've found that boosts at around 65 and 6500 hertz help
analog sound more like a good vst.


 

offline JivverDicker from my house on 2013-04-23 23:15 [#02454715]
Points: 12102 Status: Regular | Followup to listen2meTalk: #02454708



More than two parameters can be modified you simple toe rag.
It's not limited to the number of limbs you have you smelly
rat bag.


 

offline EpicMegatrax from Greatest Hits on 2013-04-24 01:03 [#02454755]
Points: 25264 Status: Regular | Followup to dave_g: #02454690



computers have an undeserved rep as being sterile. while
digital treats that "distortion" as error and filters most
of it out, things get perfectly complex again after that.
let's try this:

Every single windows registry entry will generate some kind
of
lag, will vary with time of day and age, and will
pick up interference to some degree.
All of these factors mean that the program flow is never
ever the same.
Whether most of these effects are audible is another
matter,
but they are certainly occurring!

this is before you even wander over to an old computer like
the apple II, which feels.... i dunno, alive. you switch it
on after a week and there's gunk in the chips that give you
a brief flash of whatever you were last working on before it
clears the screen. it messes up sometimes, often
pleasantly.

i guess that doesn't have much to do with how VST
oscillators sound, though. just mean to say there's plenty
of chaos in there if you look closely.

how about them D/A converters?


 

offline dave_g from United Kingdom on 2013-04-24 20:05 [#02454837]
Points: 3372 Status: Lurker | Followup to EpicMegatrax: #02454755



That's a nice idea but really the chaos for an audio process
is highly deterministic and audio buffers see to the
elimination of most of any sort of dynamics anyway.

The main causes of "distortion" you get in a digital system
(e.g. a PC with a soundcard) are:
DAC clock jitter,
DAC non-linearity,
PSU related issues (ripple, poor decoupling of RF
intermodulating down, etc).

I guess you could get cosmic rays flipping bits in RAM but I
don't think that will have an audible effect!

As always its mostly the "a" in DAC that is causing the fun
to occur and that is of course Analogue.

However from the DAC there will likely be amplification and
some form of transducer such as a loudspeaker. These will
both be non-linear, as will your listening environment, as
is your ear.
There is absolutely loads of psycho-acoustic stuff at work
of which I have little understanding but this has a big
affect.

The audio goal people are after is in the middle of the A/D
spectrum.
Analogue electronics starts from "OMG this is too wild to
want to listen to" and is tamed.
Digital electronics starts from "OMG this is too static to
want to listen to" and is funked up.
In a pure form neither analogue nor digital are particularly
close to the middle ground of "this sounds wicked".

I think that hybrid synthesis schemes are actually fantastic
and do offer the best of both worlds. Have a listen to the
SQ80:

http://www.youtube.com/watch?v=5y8fNnDJUx0

This has digital VCOs and analogue filters but sounds
absolutely fantastic. However great analogue VCOs are, they
are so limited in waveforms it is laughable sometimes. How
many analogue synths just offer saw and square? With a
sample based DCO I can have any arbitrary waveform I damn
well choose!

Back to the original question, I think people can be fooled
providing the digital sounds has been sufficiently "funked
up"!


 

offline listen2meTalk on 2013-04-24 20:48 [#02454838]
Points: 575 Status: Addict



all you have to do is replace a few transistors with vacuum
tubes and you've got the problem solved.


 

offline fleetmouse from Horny for Truth on 2013-04-25 02:11 [#02454853]
Points: 18042 Status: Lurker



Vacuum tubes go full circle and actually sound digital.
That's why the earliest computers used vacuum tubes, in 18th
century horsehair loom facotries.


 

offline EpicMegatrax from Greatest Hits on 2013-04-25 06:08 [#02454868]
Points: 25264 Status: Regular | Followup to dave_g: #02454837



i have a SCI Prophet VS and it sounds wonderful.
sample-based DCOs with analog filters, chorus, multiplexers
etc....

if you create a suitably complex piece of code and then bung
the variables through a randomizer (the Prophet VS has a
random patch generator!) things don't feel very
deterministic anymore. instant "OMG this is too wild to want
to listen to." tie some more variables to a random little
window of RAM or swapfile, and you'll lose all hope of
making things repeatable very fast.

i'm not arguing that glitching DACs sound interesting, just
the notion that computers are this clinical stale universe
where everything always unfolds in exactly the same way.


 

offline EpicMegatrax from Greatest Hits on 2013-04-25 06:09 [#02454869]
Points: 25264 Status: Regular



*i just disagree with the notion


 


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