PDA

View Full Version : DIGITAL



richluvsound
02-01-2008, 04:33 AM
This probably asking a lot ,but I would like to see its possible to have a thread dedicated to digital equipment . There are a few guys and gals here that have a lot of knowledge on the theory and application of a digital signal.

Considering most of us use CD, DVD,iTunes,Tact and Deqx ( digital ) I feel it would very useful to have all digital info in one place for quick reference and general reading.

please feel free to toss in your cents worth !

Rich

BMWCCA
02-01-2008, 07:34 AM
While you're waiting: http://www.audioroundtable.com/DigitalAudio/

:blah:

Rolf
02-01-2008, 11:31 AM
This probably asking a lot ,but I would like to see its possible to have a thread dedicated to digital equipment . There are a few guys and gals here that have a lot of knowledge on the theory and application of a digital signal.

Considering most of us use CD, DVD,iTunes,Tact and Deqx ( digital ) I feel it would very useful to have all digital info in one place for quick reference and general reading.

please feel free to toss in your cents worth !

Rich

Just wondering, what exactly do you have in mind? Experience with digital equipment, including digital cables, and stop with analog power amps, or do you also mean digital power amps as well.

richluvsound
02-01-2008, 12:07 PM
Hi Rolf,

there is a ton of information here already . Readswift,Ian and many others seem to have some very useful information. Maybe just simple things ie, how does a dac work, why is a digital amp great for LF and not the rest of the bandwidth ? Really interesting articles ,like the one posted by Jblog about modern mastering techniques and the subsequent impact on sound quality. These are the kind of subjects that could be found in a DIGITAL thread.

Perhaps its not a very good idea ,but its an idea I'm putting out there for feed-back.

Rich

Ian Mackenzie
02-01-2008, 03:10 PM
Who ever said digital was good for LP........? Its one of the worst effected areas by Jitter issues ..apparently.

I tend to think its a whole sphere of knowledge in itself. In consumer scenarios its fairly cut and dried. You plug it in and it goes and you can mess with a lot of money to make it a bit better.

In Pro scenarious like recording and processing that is where you need a thinking cap. I dont think the latter is relevent to these forums.

Rolf
02-01-2008, 04:12 PM
Hi Rolf,

there is a ton of information here already . Readswift,Ian and many others seem to have some very useful information. Maybe just simple things ie, how does a dac work, why is a digital amp great for LF and not the rest of the bandwidth ? Really interesting articles ,like the one posted by Jblog about modern mastering techniques and the subsequent impact on sound quality. These are the kind of subjects that could be found in a DIGITAL thread.

Perhaps its not a very good idea ,but its an idea I'm putting out there for feed-back.

Rich

So ... you are not interested in personal experience? I don't look around for articles, and I do not know how a DAC works.

I know a lot about sound quality, what sound better and what sounds not so good. Analog or digital. From the source to the amp. But that is what I can. No detailed technical know-how of how it works, and I don't really care how, as long as it works. I leave that to the tech people.

Sound quality is what counts for me.

Ian Mackenzie
02-01-2008, 07:14 PM
Hi Rolf,

there is a ton of information here already . Readswift,Ian and many others seem to have some very useful information. Maybe just simple things ie, how does a dac work, why is a digital amp great for LF and not the rest of the bandwidth ? Really interesting articles ,like the one posted by Jblog about modern mastering techniques and the subsequent impact on sound quality. These are the kind of subjects that could be found in a DIGITAL thread.

Perhaps its not a very good idea ,but its an idea I'm putting out there for feed-back.

Rich

I will try and find some good reference on "How it Works" for you when time permits.

Here is a good place to start on the basics:

http://www.lavryengineering.com/index_html.html

http://www.lavryengineering.com/documents/Sampling_Theory.pdf

http://www.lavryengineering.com/forum_images/Digital_Audio.pdf

http://www.lavryengineering.com/white_papers/dither.pdf

http://www.lavryengineering.com/white_papers/dnf.pdf

http://www.lavryengineering.com/white_papers/fir.pdf

http://www.lavryengineering.com/white_papers/sample.pdf

http://www.lavryengineering.com/white_papers/jitter.pdf

http://sound.westhost.com/articles/dsp.htm


Any subjective information about digital sound quality or just sound quality is just an opinion and not necessarily one you will personally agree with.

CONVERGENCE
02-01-2008, 07:39 PM
This has to do with recordings. Commercial CD are all 16 bit 44KHZ.
If you want a copy of a master tape at 24 bit 96KHZ you will need a special CD player to play it back.

Most master recordings now are recorded at 24 bit 96KHZ The resolution and dynamic range is incredible. It's like comparing CD DA to MP3.

Any way . One you cannot get masters on the market. These are reserved for films and commercials or other special presentations.

The prices for a single top 40 hit from the 70's can run you up in the 15K $.And you need to sign a contract.

Some people think that DVD sound has a resolution of 24/ 96 wrong
the format also carries the image.

............................
.

JBL 4645
02-01-2008, 08:53 PM
This has to do with recordings. Commercial CD are all 16 bit 44KHZ.
If you want a copy of a master tape at 24 bit 96KHZ you will need a special CD player to play it back.

Most master recordings now are recorded at 24 bit 96KHZ The resolution and dynamic range is incredible. It's like comparing CD DA to MP3.

Any way . One you cannot get masters on the market. These are reserved for films and commercials or other special presentations.

The prices for a single top 40 hit from the 70's can run you up in the 15K $.And you need to sign a contract.

Some people think that DVD sound has a resolution of 24/ 96 wrong
the format also carries the image.

............................
.

CONVERGENCE

Hence something needs to be sacrificed, am I wrong there?

I have 20 bit CD dts Titanic and a few Jean Michael Jarre at 24 bit.

So what it is the bit rate on laserdisc for dts, is it 20 bit?

Is the bit rate for sound different for Superbit DVD?

richluvsound
02-02-2008, 01:51 AM
Ian,

that stuff from Lavry is just the ticket. Clear and free off opinion. It makes for some interesting breakfast reading. Helps explain Jitter and areas that had
me looking vague when being bombarded with TEK TALK by some parasitic high-end hifi dealer.

Rich

CONVERGENCE
02-02-2008, 05:26 AM
CONVERGENCE

Hence something needs to be sacrificed, am I wrong there?

I have 20 bit CD dts Titanic and a few Jean Michael Jarre at 24 bit.

So what it is the bit rate on laserdisc for dts, is it 20 bit?

Is the bit rate for sound different for Superbit DVD?

Will they release at 16 or 24 that is the queation?


True HD supports 24 bit, 96 kHz audio channels.

PCM: 48 kHz or 96 kHz sampling rate, 16 bit or 24 bit
AC-3: 48 kHz sampling rate, 1 to 5.1 (6) channels
DTS: 48 kHz or 96 kHz sampling rate, 2 to 6.1 channels
MP2: 48 kHz sampling rate, 1 to 7.1 channels

...........................

You can buy DVDA That's a DVD with audio only . The selection is limited but the bit rate is 24 with a sampling of up to 192 KHZ.

,,,,,,,,,,,,,,,,,,,,,,,,,,

macaroonie
02-02-2008, 06:38 AM
Thats near the Isle of Wight innit:blink:

richluvsound
02-02-2008, 07:18 AM
:banghead:

JBL 4645
02-02-2008, 07:18 AM
Will they release at 16 or 24 that is the queation?


True HD supports 24 bit, 96 kHz audio channels.

PCM: 48 kHz or 96 kHz sampling rate, 16 bit or 24 bit
AC-3: 48 kHz sampling rate, 1 to 5.1 (6) channels
DTS: 48 kHz or 96 kHz sampling rate, 2 to 6.1 channels
MP2: 48 kHz sampling rate, 1 to 7.1 channels

...........................

You can buy DVDA That's a DVD with audio only . The selection is limited but the bit rate is 24 with a sampling of up to 192 KHZ.

,,,,,,,,,,,,,,,,,,,,,,,,,,

Thanks. :) So if I want 24 bit on DVD, I’m forced to buy HD-DVD or Bluray, hmm let me think about that for a few years.

JBL 4645
02-02-2008, 07:27 AM
:banghead:

Rich

Just use the force mate.:D



http://i233.photobucket.com/albums/ee15/Evolution3417/Jedimindtrickjoke.jpg

Krunchy
02-02-2008, 07:32 AM
I think its a good idea, everybody has some sort of digital components. I myself have not embraced the whole ipod i-tunes etc, but I am usually late catching the train in a manner of speaking. There are a lot of people here that are very knowledgable in this area and there should definitely be a thread if not a whole subcategory dedicated to digital duscussion & topics. Maybe not everyone here will have an affinity to the technical side of things but it is still important to be able to discuss and share knowledge and that is definitely worth while regardless of topic.
I am aware of the term jitter :D

JBL 4645
02-02-2008, 07:35 AM
Ashley , I could'nt give a Flying F--- about films:banghead:
I was hoping for the kind of Info Ian and Jbog have posted




Word for the day - "SALIENT"



A digital stereo audio signal was the thread I had in mind . I dont wish to be rude, but can we keep on topic please.

Rich

Rich

You mentioned DVD in the first post; I assumed you meant films, unless you mean music DVD. You really shouldn't be banging your head against wall, after eating breakfast. :D

JBL 4645
02-02-2008, 07:53 AM
Ash

digital signal processing !

stop spammin the bloody thread with unrelated images , Behave !

Rich

Rich

Gordon Bennett now I’m being called a (spammer):( ROTFLMAO :rotfl: what side of bed get you LOL get out of this morning. :D Come on, lighten up, it’s a harmless bit of humour, that’s all.

JBL 4645
02-02-2008, 08:26 AM
Ashley,

I love a joke as much as anyone...... My girlfriend laughs everytime I drop my trousers.
Consider how much bandwidth images take up. When I want information I don't want to have to wade through a pile of unrelated SHITE to get it; that's the whole premise of my request for a dedicated digital thread.


Rich

Rich

Yes just don’t drop them around here, I doubt bop will share the British sense of humour. :D Bandwidth LOL I’d say its less than CD-ROM.

Hmm I don’t like the sound of that, my Madonna is skipping a few beats in the JBL room, I’ve just wiped the CD, well it could be worse it could have been nasty scratch on LP.:banghead:

allen mueller
02-02-2008, 09:15 AM
I will try and find some good reference on "How it Works" for you when time permits.

Here is a good place to start on the basics:

http://www.lavryengineering.com/index_html.html

http://www.lavryengineering.com/documents/Sampling_Theory.pdf

http://www.lavryengineering.com/forum_images/Digital_Audio.pdf

http://www.lavryengineering.com/white_papers/dither.pdf

http://www.lavryengineering.com/white_papers/dnf.pdf

http://www.lavryengineering.com/white_papers/fir.pdf

http://www.lavryengineering.com/white_papers/sample.pdf

http://www.lavryengineering.com/white_papers/jitter.pdf

http://sound.westhost.com/articles/dsp.htm


Any subjective information about digital sound quality or just sound quality is just an opinion and not necessarily one you will personally agree with.


Great stuff, I've got alot to read now.

Allen

macaroonie
02-02-2008, 10:09 AM
First a little history. CD was introduced in 1983 as a result of R&D work by Phirrips and Sony. If you care to delve into the old AES papers of the time you will find a good insight into the sad state of affairs that we now have.
In short the technical format for CD was arrived at as a consequence of the low ( by todays standards ) number crunching capability and also as a result of work by the audiologists. The words Adequate and sufficient were applied to the process with regard to the technical resolution of the ENCODE . This is where the 44.1 kHz comes from. It was agreed at the time that for most people most of the time this input sample frequency was quite sufficient.
However, if you think about it, at that frequency a note with a f of say 10kHz will only be sampled 4 times in any cycle. Now if you scoot off into the web you will be able to find a sample waveform of music in that frequency range. What you will see is anything but a simple wave but rather a very complex image that reflects all the harmonics etc that is the music we hear.
When the CD is played back the decoder will try to reconstruct the original from this scant information ( an analogous example ---- if you have an avatar on this site try having a look at it full screen ) but does not have enough info. It will then try to fill in the gaps or will read similar adjacent cycles and fill in with that. The root cause of the problem is the input data and this takes us into a whole different area of discussion.
Some years after the CD introduction our chums DBX pitched up at CES or perhaps it was the AES Convention. What they had on show was a system for digital audio that was fit for the purpose. In essence they used a different coding system that was much more economical and as a result they were able to have a sample rate of 700kHz not 44.1kHz. Because the sampling was so fast the data was not chock full of discernable errors, consequently all those error correction and oversampling systems were not required. DBX offered this system to the industry as a whole FREE of license fee but there was no take up as CD had become entrenched and all the hardware and software producers were having a field day. This was truly the Betamax v VHS debate all over again. From that point onwards as we know CD has stood still.
I find it remarkable that after 20+ years digital audio has not moved forward particularly when you consider the exponential rise in computing power. Even the small step up to the 96kHz used at the studios would be a miracle.
The issue now is not one of number crunching or of the hardware or storage capability but is entirely at the whim of the software producers and the input quality that they choose to use. My own opinion is that we have been sold down the river by the record companies and frankly it is getting worse, have you really had a listen to an MP3.
Part of the problem of course is that we here do listen through Studio monitors and their derivatives , consequently the flaws are all to apparent.
As to the future, no immediate change will occur and complacency will reign.

If any of you have not done this here is a useful exercise. Go find a good local studio ( pref one using JBL ) and butter up the engineer to let you hear master quality playback. You will realise within ten seconds what a pup we have been sold.:barf:

http://en.wikipedia.org/wiki/Dbx_Model_700_Digital_Audio_Processor

readswift
02-02-2008, 10:17 AM
I know about the DBX and Ed Meitner agenda, their 1985 discrete delta sigma recorder consumed 20 watts to give us the 18bit. The same thing inside an integrated circuit nowdays eats about 350 mW. At the end Im glad PCM encoding survived :) FYI i have the ADC cards of an 1988 , 18bit Neve digital desk, and its NOT delta sigma. :cheers:
Many people agree you dont need more than 60-70khz with PCM, so if we beleive that , even 96khz is overkill. Ed Meitner is still around , he did work out the SACD and DSD format for Sony. Processing of DSD data is not quite widespread compared to PCM's. Ill dig up links and pdf-s if there is interest.

http://wiki.ibs.org.uk/audiocompendium/index.php?title=DSP-1
http://www.positive-feedback.com/pfbackissues/0802/pappas.Meitner.rev.8n2.html
http://www.essex.ac.uk/dces/research/audio_lab/malcolmspubdocs/J18%20Oversampled%20ADC.pdf
http://www.emmlabs.com/pdf/papers/DerkSigmaDelta.pdf

JBL 4645
02-02-2008, 10:23 AM
Earlier than that I think, it was 1982.

http://news.bbc.co.uk/2/hi/technology/6950933.stm

World’s first CD manufactured at Philips factory near Hanover, Germany, on August 17, 1982.
http://blog.pcnews.ro/2007/08/16/philips-celebrates-25th-anniversary-of-the-compact-disc/



I know about the DBX and Ed Meitner agenda, their 1985 discrete delta sigma recorder consumed 20 watts to give us the 18bit. The same thing inside an integrated circuit nowdays eats about 350 mW. At the end Im glad PCM encoding survived :) FYI i have the ADC cards of an 1988 , 18bit Neve digital desk, and its NOT delta sigma. :cheers:
Many people agree you dont need more than 60-70khz with PCM, so if we beleive that , even 96khz is overkill. Ed Meitner is still around , he did work out the SACD and DSD format for Sony. Processing of DSD data is not quite widespread compared to PCM's. Ill dig up links and pdf-s if there is interest.

LOL I think 96KHz is exclusive to BATS only!:D

macaroonie
02-02-2008, 10:46 AM
The point about the DBX method was that it eliminated most of the pitfalls that have become all too apparent in the CD format. As I understand it they had not chipped the entire processor but did have the mapping ready to do so in the event that there was industry take up. Same idea as the Dolby chip in cassette recorders. Remember this was meant to be a consumer solution.
I would expect that the power usage would have been reduced under those circumstances

JBL 4645
02-02-2008, 10:50 AM
The point about the DBX method was that it eliminated most of the pitfalls that have become all too apparent in the CD format. As I understand it they had not chipped the entire processor but did have the mapping ready to do so in the event that there was industry take up. Same idea as the Dolby chip in cassette recorders. Remember this was meant to be a consumer solution.
I would expect that the power usage would have been reduced under those circumstances

Dolby B type Dolby C and S type that comes from the SR professional. A type is used in studios and on films; thou SR type is commonly used now.

http://mixguides.com/consoles/tips_and_techniques/Shawn-Murphy.web.jpg
Scoring mixer Shawn Murphy likes using Dolby SR type.

http://mixonline.com/mag/audio_scoring_patriot/ (http://mixonline.com/mag/audio_scoring_patriot/)

CONVERGENCE
02-02-2008, 11:36 AM
The last time I posted we were talking DVD commercial.
If you see the label DTS on your DVD it's 24 bit 96 KHZ audio IN 2 CHANNEL but today if 5.1 it's probably 12 0r 16.

BROADCASTING TV ARE STILL USING DIGITAL VIDEO TAPE CASSETTES
THIS WAY THEY CAN USE full 24 bit 96 khz audio in Dolby DTS and are not limited by film length.

This has to do with film transfer . FROM 35MM TO DVD COMMERCIAL AND
PRO digital tape CASSETTES FOR TV broadcast.

http://www.dtsonline.com/media/uploads/pdfs/9624.pdf

http://www.dtsonline.com/media/1pxl.gif
http://www.dtsonline.com/media/1pxl.gif
http://www.dtsonline.com/media/uploads/files/dts-logos-9624Red.gif
http://www.dtsonline.com/media/1pxl.gif
The stereo CD is a 16-bit medium with a sampling rate of 44.1kHz. Greater bit depths provide extended dynamic range, while higher sampling rates allow wider frequency response and the use of anti-alias and reconstruction filters with more favorable aural characteristics. Professional audio has been 20- or 24-bit for some time, and there is increasing interest in higher sampling rates both for recording and for delivery into home. Delivering better-than-CD quality throughout its home audio history, DTS music and video soundtracks are not only discrete multi-channel, but deliver up to 24-bit audio.
The introduction of DVD-Video allowed the possibility of delivering 24-bit, 96kHz audio into the home, but only in two channels and with serious picture limitations. DVD-Audio offers 96/24 in six channels, but a new player is required. Additionally, only analog outputs are provided, which requires digital/analog (D/A) converters and analog electronics provided by the player.
DTS 96/24 offers the following:

Sound quality equivalent to the original 96/24 master.
Full backward compatibility with all existing decoders. (Existing decoders will output a 48kHz signal.)
No new player required: DTS 96/24 can be carried on DVD-Video, or in the video zone of DVD-Audio discs that is accessible to all DVD players.
High resolution 96/24 5.1-channel sound with full-quality full-motion video for music programs and motion picture soundtracks on DVD-Video.
Digital 96/24 output through the S/P DIF port. DTS 96/24 allows the use of external, very high quality D/A converters and associated analog electronics.Hardware features:
Devices carrying this logo handle DTS 96/24 decoding.


So HD and Blu RAy are the one that will deliver both (picture) and sound at 24 bit 96 khz.



...................................

Rolf
02-02-2008, 02:34 PM
Strange, since I got my second player in 82.

Quote:

"CD was introduced in 1983 "

Rolf
02-02-2008, 02:38 PM
Ashley

This is not your blog so go take hike ...please.

Ian

:cool:

macaroonie
02-02-2008, 08:09 PM
Strange, since I got my second player in 82.

Quote:

"CD was introduced in 1983 "

sorry for my inexactitude dude here is some wood to make you feel cool not rude. Rolf you need to be less serious. I know its been a long winter but jeez you dont get the wet we get so chill please.

readswift
02-02-2008, 09:22 PM
The point about the DBX method was that it eliminated most of the pitfalls that have become all too apparent in the CD format. As I understand it they had not chipped the entire processor but did have the mapping ready to do so in the event that there was industry take up. Same idea as the Dolby chip in cassette recorders. Remember this was meant to be a consumer solution.
I would expect that the power usage would have been reduced under those circumstances


what initially corrupted the CD format in early eighties was the "unlimited attenuation" Sony switched capacitor filter, to cut everything above 20khz. Pulse response looked like "watermelons". The cure were the less steep and less phase warping in analog filters. This is the so called Apogee fame:
http://mixonline.com/mag/audio_apogee_electronics/

Anyway, quite beefy linear power supply 20-30 of those DBX converters would need lol.

Rolf
02-03-2008, 01:38 AM
sorry for my inexactitude dude here is some wood to make you feel cool not rude. Rolf you need to be less serious. I know its been a long winter but jeez you dont get the wet we get so chill please.

Have I been rude:blink: I just pointed out in a friendly manner that your information was not correct.

Well, I chill. :bouncy:

richluvsound
02-03-2008, 04:02 AM
thank you ,

these are just the people to impart knowledge . I can stop being a bloody control freak , sit ,read and learn.

I was working @ A&A records in Vancouver when the first shipment of CD's arrived, that was 83-84 . The store had to go and buy a CD player the same day !

Rich

Ian Mackenzie
02-03-2008, 04:27 AM
So have you got that F''íng DEQX up and going yet?

richluvsound
02-03-2008, 05:31 AM
hey handsome,

its still shagged. I am holding on to it so Bo and I can mess with the EQ at the weekend then I'm sending it back down under for repair. I may sell it when its
working and I have an active to replace it.

I will need to get a dac and a pre-amp though $$$$$$ . I'm thinking perhaps
I would get them to upgrade the Deqx by adding another optical input. It's


not as

warm or musical as tube ,but it does sound very good indeed. It is certainly a huge step up from what I was using.

I have spoken to Kim the designer ,he was very helpful, but some of what he was talking about went straight over my head.

Its all trial and error stuff really.

Rich

JBL 4645
02-03-2008, 06:01 AM
Who on earth keeps all the records of all current CD sold between 1982 and 2008 players as well? We must be talking billons here?

What is the current highest top ten CD list in all areas from.

Rock
Soul
Rhythm and Blues
Classical
Film scores
Country
Rave
Rap
Folk

And so on??
What is the list like for this???

Rolf
02-03-2008, 06:47 AM
thank you ,

these are just the people to impart knowledge . I can stop being a bloody control freak , sit ,read and learn.

I was working @ A&A records in Vancouver when the first shipment of CD's arrived, that was 83-84 . The store had to go and buy a CD player the same day !

Rich

My daughter is born in August 1983. As far as I can remember I had a Denon 1800R at that time. Before the Denon I had a Hitachi player.

My CD of Dire Straits "Making movies" is from 1980. "Love over Gold" is from 1982, and I believe this was the first CD I bought.

So if A&A don't got it before 83/84 they must have been late.

Still Chill.:bouncy:

SEAWOLF97
02-03-2008, 07:46 AM
http://en.wikipedia.org/wiki/Compact_Disc


The first Compact Disc for commercial release rolled off the assembly line on August 17 (http://en.wikipedia.org/wiki/August_17), 1982 (http://en.wikipedia.org/wiki/1982), at a Philips factory in Langenhagen (http://en.wikipedia.org/wiki/Langenhagen), near Hanover (http://en.wikipedia.org/wiki/Hanover), Germany (http://en.wikipedia.org/wiki/Germany). The first title released was ABBA (http://en.wikipedia.org/wiki/ABBA)'s The Visitors (http://en.wikipedia.org/wiki/The_Visitors) (1981).[5] (http://en.wikipedia.org/wiki/Compact_Disc#_note-1) CDs and Sony (http://en.wikipedia.org/wiki/Sony)'s CD player (http://en.wikipedia.org/wiki/Compact_Disc_player) CDP-101 reached the market on October 1 (http://en.wikipedia.org/wiki/October_1), 1982 (http://en.wikipedia.org/wiki/1982) in Japan (http://en.wikipedia.org/wiki/Japan), and early the following year in the United States (http://en.wikipedia.org/wiki/United_States) and other markets. This event is often seen as the "Big Bang (http://en.wikipedia.org/wiki/Big_Bang)" of the digital audio revolution. The new audio disc was enthusiastically received, especially in the early-adopting classical music (http://en.wikipedia.org/wiki/European_classical_music) and audiophile (http://en.wikipedia.org/wiki/Audiophile) communities and its handling quality received particular praise. As the price of players sank rapidly, the CD began to gain popularity in the larger popular (http://en.wikipedia.org/wiki/Popular_music) and rock music (http://en.wikipedia.org/wiki/Rock_music) markets. The first artist to sell a million copies on CD was Dire Straits (http://en.wikipedia.org/wiki/Dire_Straits), with their 1985 album Brothers in Arms (http://en.wikipedia.org/wiki/Brothers_in_Arms_%28album%29).[6] (http://en.wikipedia.org/wiki/Compact_Disc#_note-2)

macaroonie
02-03-2008, 05:26 PM
CDP-101 reached the market on October 1, 1982 in Japan, and early the following year in the United States and other markets.
you be chillin now

readswift
02-09-2008, 08:49 PM
some further debunking:

http://www.meridian-audio.com/ara/bitstrea.htm

check out jitter papers here:

http://www.jitter.de/pdfextern/

richluvsound
02-12-2008, 05:15 AM
A friend has dropped this off for me to play with:D
A beautiful rich non-digital sound . A bit pricey for me to seriously consider
at the moment,but certainly something for me to aspire to ! The build quality is superb.I even like the industrial looks.









The Power DAC
Ultra performance in a simple package, the GOLD 4 is a Platinum in design and performance, without the many features, but with battery operation. It contains single ended Platinum DACs, MSB DSP Digital Filter and integrated battery power supplies. (Optional remote controlled volume control now shipping) 17"x 14"x 1.75" 20 lbs. 120V or 240V charger. DETAILS

$4295
($4994 with volume control)

readswift
02-14-2008, 08:06 AM
that battery MSB is cute for real, but beware the cheaper Link DAC, those are not even remotely close.

http://blog.stereophile.com/ces2008/011008ess/

This DAC is going to turn the industry upside down in nearby future, I recommend everyone to wait a few months until something appears with this chip . I expect to receive an evaluation-kit from ESS in 2-3 weeks from now FYI :thmbsup:

pos
02-14-2008, 08:11 AM
"But when we added in the Hyperstream Modulator, which noise shapes and cascades independently stabilized lower-order modulators to achieve a nominal 90% modulation depth. It also employs a time domain interpolation algorithm to render the data into a higher clock domain without polyphase filters.":hyp:

richluvsound
02-14-2008, 08:43 AM
Pos,

thats why I wanted this thread. When you have so much jargon flying around
its nice to have the likes of readswift helping us wade through the :bs::blah:

Man, I love this forum. It saves ££££$$$$$$ The MSB is a fine sounding machine. Perhaps readswift could clone it . :banghead: Sorry, I would openly suggest such a thing.:D

Rich

readswift
02-14-2008, 09:05 AM
Pos, The MSB is a fine sounding machine. Perhaps readswift could clone it . :banghead: Sorry, I would openly suggest such a thing.:D

Rich

actually our project is strikingly similar here, but without MSB's "proprietary signature" BS .

richluvsound
02-14-2008, 09:55 AM
read,
any idea on cost compared to the MSB ?

will it also have a pre and volume control ?


Rich

readswift
02-14-2008, 09:09 PM
this project is for fun to us in the first place so we have no time constraint.
I suggested the top of the line old school Technics players in another thread up to SLP-999, someone skilled can modify that one for you with quite good results in return. The topology it has is similar (dare I say, exactly 1:1 ) to MSB-s, but without the heavy dsp processing load they do ofcourse. You can mod the hell out of it tho : ))

On the opposite end, there is this single ESS chip , it is very self contained so it wouldnt be nice if the OEM manufacturers charge you like no tomorrow. Tho this battery power thing sounds cool .