Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread ftlight

Golden Earring wrote: 
> Hi Bill!
> 
> It sure is a pretty deck (if you can find room for it, lol): you do have
> to change the damping fluid periodically since it tends to get clogged
> up with detritus.
> 
> I'm afraid I stand my earlier comment that the LP12/Ittok with a low
> compliance cartridge gets a lot more information out of the groove
> however - the rationale is that the stylus moves, the arm/cartridge body
> doesn't. Also there's no isolation of the turntable/arm board from the
> rest of the deck on the Transcriptors. The strobe speed setting is very
> :cool: in combination with the damping paddle fine tune, however.
> 
> Ultimately more form than substance: well worth keeping as a work of art
> though!
> 
> Dave :)
> 
> P.S. As I recall it got a few free product placements in the movies (I
> think there's one in Kubrick's "A Clockwork Orange" if I remember
> correctly,,, )

Yes, it's Alex's turntable on which he plays the music of Ludwig van:
http://www.filmandfurniture.com/wp-content/uploads/2015/05/record-player-1024x576.jpg

There's also one in the Design Collection of the Museum of Modern Art in
New York:
https://www.moma.org/collection/works/3339

I really should replace the damping fluid, and I could also use a new
drive belt.  Looking at it now, though, I see I have a V15 MkIV rather
than III.  I still have the original Transcriptors arm, although I
replaced it with the SME as soon as I got the turntable (acquired in the
1970s as part of a deal with Clive Taylor, former bassist of Amen
Corner).



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

drmatt wrote: 
> Yep, NICAM receiver only. Hifi stereo vhs was pretty good. Very reliant
> on tracking stability though. Handy for recording stuff longer than 45
> minutes too..

The only (rather serious) drawback to VHS tapes & their containers was
that they were flammable & emitted a particularly nasty combination of
toxic gas & dense black smoke once on fire.

Consequently having a whole wall of your lounge given over to the things
was not a particularly GOOD IDEA. Thankfully CD's et al are not such a
fire risk - they are *-compact-* as well...

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread drmatt

Yep, NICAM receiver only. Hifi stereo vhs was pretty good, agreed. Very
reliant on tracking stability though.

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

drmatt wrote: 
> NICAM was an interesting technology, but it was only used on the
> broadcast side. A VCR recorded analogue audio. Maybe you knew that, I
> wasn't clear from your post so just clarifying.
> 
> Cheers!
> 
> Sent from my ONEPLUS A3003 using Tapatalk

Agreed, analogue audio recorded at 30ips, although not on 2" wide master
tape format sadly.

The tuner in the VHS recorder did have to decode the near (but not
quite!) instantaneously compounded audio multiplex part of the TV
transmission however.

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread drmatt

NICAM was an interesting technology, but it was only used on the
broadcast side. A VCR recorded analogue audio. Maybe you knew that, I
wasn't clear from your post so just clarifying.

Cheers!

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

drmatt wrote: 
> Undoubtedly this. Nicam produced a companded 14 bit digital signal,
> iirc, but it was rarely used outside of the UK.
> 
> Sent from my ONEPLUS A3003 using Tapatalk

It didn't sound that shabby though.

I was highly amused that the most impressive effect came from a Domestos
bleach commercial in which the bottle leapt enthusiastically off the lid
of the loo & landed on the floor with a resounding thud! ;)

Of course TV advertising was ridiculously expensive so there was no
reason for the makers to hold back on the production budget for a 30
second long "feature" & many of them were better made than the
programmes that they interrupted...  

I do *-hate-* advertising & marketing generally though & hold them
responsible for many of our self-inflicted ills :mad:.

Dave (conflicted, no suitable emoticon)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

Julf wrote: 
> "This stop goes to 11. "

While we're about it why not turn *-everything-* up to 11?

Dave :D



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

cliveb wrote: 
> We know that the LP system is a complete dog's dinner compared to CD,
> and yet it can give just as much enjoyment. I think this probably says
> more about the limitations of the human auditory system than it does
> about the engineering achievement.

Hi Clive!

I am in agreement with you, I got a lot of musical enjoyment from my
analogue system back in the day, using inferior amplification &
loudspeakers in comparison to my present set-up to boot.

Whilst I wouldn't wish to eat a dog's dinner (well, unless I was
*-seriously-* hungry & lacking in any prospect of on alternative... :p )
I am uncommonly fond of dogs themselves.

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

I think that the musical performance is indeed paramount: I like the
mono recordings of the incomparable Kathleen Ferrier (some of her most
spell-binding efforts didn't even have the undoubted recording mastery
of Walter Legge, since she disliked the bloke & escaped from Columbia as
soon as she could to sign up with Decca).

I also have a stunning recording of Dennis Brain playing Mozart's Horn
Concertos accompanied by Walter Legge's Philharmonia Orchestra conducted
by a relatively young Herbert von Karajan (before he became principal
conductor of the Berlin Philharmonic & single-handedly responsible for
1/3rd of Deutsche Grammophon's classical music sales). This was also
recorded in resplendent mono sound (by Walter Legge) in 1954, the year
before I was born. I still have this as one of my legacy vinyl
recordings, as well as a later (& superior) digital re-mastering from
the antiquated analogue master tape.

So I wholeheartedly agree that if the performance is sufficiently
compelling one can quickly ignore any "technical" deficiencies in the
recording process or the medium in which it is packaged. "Suspension of
disbelief" appears to be a readily available option to the human brain.

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread drmatt

I actually think it says more about the /capability/ of the human
auditory system than its limitations. It can pick the essence of great
music from anything, more or less; be it pristine ultra-high bitrate
digital, pristine but wow/fluttery/scratchy noisy compressed Vinyl,
crappy Vinyl, wow and fluttery cassette tape, FM radio, even MW radio
through a tinny little speaker in a plastic box being driven from two
double-A batteries..

The enjoyment of the high fidelity of playback is a separate skill, only
evolved by people with high disposable incomes and too much time on
their hands

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Julf

cliveb wrote: 
> We know that the LP system is a complete dog's dinner compared to CD,
> and yet it can give just as much enjoyment. I think this probably says
> more about the limitations of the human auditory system than it does
> about the engineering achievement.

Indeed. Under the right circumstances, the sound of FM radio or even
cassette can give wonderful enjoyment.



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
edge that will fool many people" - Paul W Klipsch, 1953

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread cliveb

Golden Earring wrote: 
> I happily accept all the above criticisms of LP's
> 
> Mahler [] I don't think that he would have been impressed by the
> quality of recorded music on LP, but I should imagine that he would have
> been astonished that it was possible to do it at all.
On the contrary, I suspect that if Mahler had heard a good vinyl LP of
his music being played through a decent system, he would have been
spellbound. 

Golden Earring wrote: 
> You know the old gag about the singing dog: it's not that the singing is
> good, it's that it happens at all that's remarkable.
Your post carries an undercurrent that implies that vinyl LP is pretty
ropey but it was the best we had at the time, and that the fact it works
at all is the most remarkable thing about it.

But let's be realistic. Despite its technical flaws and limitations,
vinyl LPs can sound absolutely fabulous. Some of my most enjoyable
listening experiences have been from vinyl LPs. A small but not
insignificant proportion of my FLAC collection is needle drops. Musical
excellence transcends the delivery medium.

We know that the LP system is a complete dog's dinner compared to CD,
and yet it can give just as much enjoyment. I think this probably says
more about the limitations of the human auditory system than it does
about the engineering achievement.



Transporter -> ATC SCM100A

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Julf

Golden Earring wrote: 
> I hear that. I took it to imply that there *-might-* be an advantage
> going further than 16/44.1, although Nyquist-Shannon would still apply. 

And if Nyquist-Shannon does apply, there is no advantage of going
further than 16/44.1 from a *timing* point of view.



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread drmatt

Golden Earring wrote: 
> your hearing would also suffer if you did this regularly as well - a lot
> of bass players get tinnitus from standing too close to their speaker
> stacks (you'd think they'd stand somewhere else, but bass players do
> seem to be a breed apart ;) ).
> 
> Dave :)

Hey,

Indeed this is of course true, but also remember that dynamic peaks this
high are rarely sustained. The overall average SPL could still be
significantly lower than this. That's what DR is all about of course. ..
unless you get an evil organist who likes to pull out all the stops at
the same time and stands on those pedals with a 64' pipe attached for a
while..

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread drmatt

Julf wrote: 
> Might also simply be because of the easier processing of word lengths
> that are a multiple of 8.

Undoubtedly this. Nicam produced a companded 14 bit digital signal,
iirc, but it was rarely used outside of the UK.

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

Julf wrote: 
> Yes, that is a possibility. But my point is that there is nothing really
> mysterious (or anything that breaks current scientific understanding)
> about it.
> 
> 
> 
> Absolutely. The problem is that audiophiles have used that paper to
> argue that Nyquist-Shannon doesn't apply - but they are also the ones
> arguing that a sampled signal supposedly can't represent time
> differences smaller than one sample interval...

I hear that. I took it to imply that there *-might-* be an advantage
going further than 16/44.1, although Nyquist-Shannon would still apply.
If the recordings had genuine provenance, of course...

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Julf

Golden Earring wrote: 
> True, but I thought the Sony engineers enjoyed a challenge! You could
> say that 44.1kHz is an odd choice of sampling frequency, but they stuck
> with that one...

Well, yes... The 44.1 kHz stems from video technology, especially
Betamax. 44.1 kHz happens to be a convenient rate for both 50 Hz (3
samples per scan line) and 60 Hz video frame refresh rates.



"To try to judge the real from the false will always be hard. In this
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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Julf

Golden Earring wrote: 
> I thought that there was an implication that human hearing might have
> more discriminatory ability than previously suspected.

Yes, that is a possibility. But my point is that there is nothing really
mysterious (or anything that breaks current scientific understanding)
about it.

> Ears have a very curious design & the human brain is simply the most
> complex object yet discovered. So I think it's reasonable to suggest
> that psychoacoustics is not as well understood as (say) Nyquist-Shannon
> sampling theory...

Absolutely. The problem is that audiophiles have used that paper to
argue that Nyquist-Shannon doesn't apply - but they are also the ones
arguing that a sampled signal supposedly can't represent time
differences smaller than one sample interval...



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
edge that will fool many people" - Paul W Klipsch, 1953

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

Julf wrote: 
> Morning, Dave,
> 
> 
> 
> Might also simply be because of the easier processing of word lengths
> that are a multiple of 8.

True, but I thought the Sony engineers enjoyed a challenge! You could
say that 44.1kHz is an odd choice of sampling frequency, but they stuck
with that one...

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

Julf wrote: 
> I think all that that paper shows is that the human ear doesn't perform
> a fourier transform, but uses discrete, parallel sensors (hair cells).

I thought that there was an implication that human hearing might have
more discriminatory ability than previously suspected.

I shouldn't imagine fourier transforms come into it but nature does
appear to make use of obscure physical phenomena sometimes: for example
quantum entanglement has been proposed to offer a explanation for the
almost 100% efficiency of photosynthesis in plants, & for the navigation
based on minute changes in the earth's magnetic field by birds (robins
were the subject of the study). It is only fair to say that alternative
mechanisms have also been proposed so the jury is still out on these
ideas.

Ears have a very curious design & the human brain is simply the most
complex object yet discovered. So I think it's reasonable to suggest
that psychoacoustics is not as well understood as (say) Nyquist-Shannon
sampling theory...

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Julf

Morning, Dave,

Golden Earring wrote: 
> This is presumably why Sony increased the projected resolution of its
> new CD format from the originally proposed 14 bits to 16 bits during the
> development phase...

Might also simply be because of the easier processing of word lengths
that are a multiple of 8.



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

drmatt wrote: 
> An extreme case, but some pipe organs can hit 130db.
> 
> https://en.m.wikipedia.org/wiki/List_of_pipe_organs
> 
> This is close up values obviously, attenuation occurs with distance. 
> 
> I also see some references to wind instruments that can hit 115db.
> 
> Sent from my ONEPLUS A3003 using Tapatalk

Morning Doc!

Unfortunately a lot of the physical locations of such instruments (i.e.
churches, cathedrals) are not very well insulated from external noise
sources & the natural acoustic of such settings will probably make the
effect of such noise leakage worse. For example, the Messiaen organ
recordings from Notre Dame cathedral I already mentioned (somewhere!) in
which you can hear the noise of passing traffic.

So Julf's best case estimate of 35dB background noise is quite likely to
be exceeded. Anyway, as he points out there's 11dB to spare in the 16bit
dynamic range which would still accommodate your organ (:D !), just...

Unless you live in a very quiet & isolated location the noise level in
your listening room is likely to exceed 35dB, & you'd probably get
busted for making 96dB on top of whatever it is! I suspect that your
hearing would also suffer if you did this regularly as well - a lot of
bass players get tinnitus from standing too close to their speaker
stacks (you'd think they'd stand somewhere else, but bass players do
seem to be a breed apart ;) ).

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Golden Earring

Julf wrote: 
> Some simple numbers: If we ignore dither, 16 bits gives you a dynamic
> range of 96 dB. I really don't think even the loudest crescendo of any
> acoustic concert exceeds 120 dB  (an amplified concert of a band such as
> Manowar is a different issue, but I would never attend one of their
> concerts without professional hearing protectors). The background noise
> in even the quietest concert venue is more than 35 dB. That still leaves
> 11 dB of margin.

Morning Julf!

This is presumably why Sony increased the projected resolution of its
new CD format from the originally proposed 14 bits to 16 bits during the
development phase...

Dave :)



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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread drmatt

An extreme case, but some pipe organs can hit 130db.

https://en.m.wikipedia.org/wiki/List_of_pipe_organs

This is close up values obviously, attenuation occurs with distance. 

I also see some references to wind instruments that can hit 115db.

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Julf

Golden Earring wrote: 
> 
> It was this paper
> https://phys.org/news/2013-02-human-fourier-uncertainty-principle.html
> that I was seeking your view on actually...
> 

I think all that that paper shows is that the human ear doesn't perform
a fourier transform, but uses discrete, parallel sensors (hair cells).



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
edge that will fool many people" - Paul W Klipsch, 1953

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Re: [SlimDevices: Audiophiles] External DAC on Transporter: best output option

2017-05-23 Thread Julf

Golden Earring wrote: 
> I'm a little surprised by the dynamic range you ascribe to an orchestral
> concert performance, but again you've probably got more experience of
> measuring it than me. I'll put it down to the bloke with the cough 3
> rows back. Why they don't issue cough pastilles at the box office has
> always baffled me. All I can say is that I've heard some pretty loud
> crescendos at the orchestral concerts I've attended to listen to (as
> opposed to record & hence measure in the process).
> 

Some simple numbers: If we ignore dither, 16 bits gives you a dynamic
range of 96 dB. I really don't think even the loudest crescendo of any
acoustic concert exceeds 120 dB  (an amplified concert of a band such as
Manowar is a different issue, but I would never attend one of their
concerts without professional hearing protectors). The background noise
in even the quietest concert venue is more than 35 dB. That still leaves
11 dB of margin.



"To try to judge the real from the false will always be hard. In this
fast-growing art of 'high fidelity' the quackery will bear a solid gilt
edge that will fool many people" - Paul W Klipsch, 1953

Julf's Profile: http://forums.slimdevices.com/member.php?userid=42050
View this thread: http://forums.slimdevices.com/showthread.php?t=106519

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