Any comments on this quote from the SimAudio site referenced previously:
32-bit Processing
The digital-to-analog conversion process uses bits of digital
information to produce an analog waveform, represented as a sine wave
(in this example only a part of a sine wave is shown) to produce a music
On 04/02/10 23:06, Kellen wrote:
Any comments on this quote from the SimAudio site referenced previously:
Yeah
32-bit Processing
The digital-to-analog conversion process uses bits of digital
information to produce an analog waveform, represented as a sine wave
(in this example only
Yes. the first bit is total nonsense. My TACT processes data at 48 bit
resolution and is is 5+ years old...
However, redbook is 16 bit and can NEVER be any more than that no
matter how big a budget is granted to the Marketing department.
Information can never be added, only lost...
--
Phil
SoX is processing using 32-bit internally (by default)
--
michael123
michael123's Profile: http://forums.slimdevices.com/member.php?userid=23745
View this thread: http://forums.slimdevices.com/showthread.php?t=74102
pfarrell;506982 Wrote:
Which specific artifacts?
Pat, you answer yourself to your question...
What I am saying (like you) is that the chip's word length has nothing
to do with the signal word length (or sampling rate) in this case.
You still listen to 16/44 or 24/96 or whatever in between,
Accepting that it may use 32 bits internally - many DACs use more in
their upsampling algorithms, there is the fundamental matter of how to
get 32 bits in.
SPDIF maxes out at 24 bits
AES/EBU same
so USB - I doubt it.
So it is a 24 bit DAC, with circa 21bit performance. Frankly probably
very
Its Very Very Good. Listened to some tracks at my local dealer in
Edinburgh.
I may go for it's litte brother the moon cd 3.3 as it has a very good
digital input, low jitter and more affordable.
Here is some data from the Simaudio website
Intended to fulfill the demands of the most discerning
Well very interesting.
Linn, Meridian, Naim all use high bit depths. 35 bit up to 64 bit.
Nothing special about the DAC other than the 32 bit staggered DACs. I
a sure a clever arrangement, but it doesn't achieve any gains in dynamic
range from their own figures.
The jitter issue is a non
The real point of the device is that it is a CD player and the
electroncs are designed as well as the mechanics to reduce that
variability in playing a CD live that programs like EAC negate with
ripping to FLAC.
PSAUDIO for their new system dont play the CD live but buffer and
correct it using
c3p0;507034 Wrote:
and The 32 bit processing is explained below
The advantage of using this 32-bit process to reconstruct a 16-bit
digital signal (i.e. Redbook CD) is simple; This process interpolates
the digital information more accurately by calculating the finer steps
with 32-bit
FWIW, if anyone is interested, here's a blurb on the DAC chip used:
http://www.esstech.com/PDF/Sabre32%20DAC%20PF%20081217.pdf
It's interesting in that it's a one chip solution, having a spdif
receiver built in.
--
DCtoDaylight
Audiophile wish list: Zero Distortion, Infinite Signal to Noise
Phil Leigh;507075 Wrote:
This is pure marketing technobabble/hogwash. It's not possible to more
accurately interpolate what was lost. Interpolation is ALWAYS a guess.
It doesn't matter how many extra bits you try and artifically generate.
It's just an anti-aliasing processing, Phil. I don't
Because in any up-sampling system, to get effective results you need an
interpolating filter. If you are not sticking to 16bit 44.1k then you
create new samples.
All 24 bit + DACs do this...
Dave
--
DaveWr
DaveWr's
DaveWr;507184 Wrote:
Because in any up-sampling system, to get effective results you need an
interpolating filter. If you are not sticking to 16bit 44.1k then you
create new samples.
All 24 bit + DACs do this...
Dave
Ah yes, the filter name... I had forgotten this. Thanks. ;)
--
c3p0;507072 Wrote:
The real point of the device is that it is a CD player and the
electroncs are designed as well as the mechanics to reduce that
variability in playing a CD live that programs like EAC negate with
ripping to FLAC.
PSAUDIO for their new system dont play the CD live but
Is 32 bits really needed or is this just a marketing ploy?
http://www.simaudio.com/moon750D.htm
--
Kellen
Kellen's Profile: http://forums.slimdevices.com/member.php?userid=16569
View this thread:
Kellen wrote:
Is 32 bits really needed or is this just a marketing ploy?
Needed for what?
Human's can not hear more than was a well recorded 16 bit signal contains.
Its good to use longer signals when mixing, doing effects, etc.
Its 99% marketing when they sell 24 bit recordings.
88.2 Hz
From their website:
...the MOON 750D is extremely flexible and exemplifies a luxurious
lifestyle.
Seriously though, does anybody even publish 32 bit music?
--
georgeh
Just a radio... for now.
georgeh's Profile:
georgeh wrote:
Seriously though, does anybody even publish 32 bit music?
That can't be a serious question. If there is some audiofool who will
pay more for 32 bit or even 64 bit, then someone will sell it.
It may have only RedBook data on it, like many SACDs, but there is
nothing wrong with
I think 32 bit is mostly used to lower noise floor.
Also, if transporter had 32bit input, I would send the output from Sox
as 32-bit, to minimize rounding errors
RE: 16bit vs 24bit music: of course I hear the difference. I hear all
the little nuances now, which were hidden by 16-bit precision.
Marketing buzzwords , many dacs and processors use oversampling
upsampling and all kind of mathematics to process audio, mostly to
counteract filter artifacts and such problems move the noise spectra
somewhere benign etc.
My meridian HT preamp uses 64bit floating point internally, but it
still a
michael123 wrote:
I think 32 bit is mostly used to lower noise floor.
Huh? RedBook has a SNR of 96dB. That is already way below audible.
24 bit takes the SNR is 144 dB.
In absolute silence, 144 dB will cause ear damage. Not probably, will.
Or as OSHA says, maximum allowed exposure to 115 dB is
Is this the rms figures ? music peaks are very fast fortunately
(milliseconds).
It's not a problem to see peaks ~115dB on a dance floor.
Here in Sweden i think we have an 85dB limit for 8 hour exposure ( a
workday ) otherwise ear protection is mandatory. don't remember if it is
a or c curve.
I think the word length used (32bit) has to do with the more recent chip
used, NOT the music signal itself. It's used to lower artifacts, not
SNR.
I doubt 16bit chips will still exist in a few years...
--
Themis
SB3 - North Star dac 192 - Cyrus 8xp - Sonus Faber Grand Piano Domus
Themis;506978 Wrote:
I think the word length used (32bit) has to do with the more recent chip
used, NOT the music signal itself. It's used to lower artifacts, not
SNR.
This is what I actually meant.
As with Transporter, where measurable resolution (e.g. output voltage)
is merely 21bit, I do
Themis wrote:
I think the word length used (32bit) has to do with the more recent chip
used, NOT the music signal itself. It's used to lower artifacts, not
SNR.
Which specific artifacts?
I doubt 16bit chips will still exist in a few years...
Externally 16 bits? I will bet that they sure
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