MQA is Vaporware

[jabbr]

1 hour ago, Samuel T Cogley said:

When I finally got around to ripping DVD-A discs, was quite disappointed to see the volume maximization and peak limiting.  Just like MQA 🙂

Oh can you rip them? I guess the format RIP'd before I learned how to rip 

[FredericV]

Does anyone know what 24 bit pure lossless mode is supposed to be, in MQA speak? I would assume 1x rate with no unfold data to 2x rate, as information theory dictates you can't assign those 8 LSB bits from a 24 bit MQA distribution file to both 24 bits of actual audio bit depth AND at the same time the crypto data to unfold to 2x rate.

https://www.stereophile.com/content/mqa-questions-and-answers-bit-depth-mqa
 

Quote

 

With a decoder, in general, the MQA system can reach either:

• In excess of either 23-bit dynamic range capability for 1x 24-bit original, or

• 15.93-bit dynamic range capability for 1x 16-bit original, or

• In any case 3–6 bits below the content noise in the audio band, or

• 24 bits in pure lossless mode, and

• In all cases MQA's noisefloor is stable throughout a song or work.

 

 

Also note that MQA does not make any hard statements about the actual noise floor, except the relative claim: " 3–6 bits below the content noise in the audio band" and "noisefloor is stable throughout a song or work" .

They only talk about dynamic range, which is misleading:

https://www.prosoundweb.com/channels/av/the_differences_between_dynamic_range_signal-to-noise_ratio/

The 16-bit compact disc has a theoretical undithered dynamic range of about 96 dB; however, the perceived dynamic range of 16-bit audio can be 120 dB or more with noise-shaped dither

https://en.wikipedia.org/wiki/Dynamic_range

MQA is in the "perceived" category

[alfe]

22 minutes ago, jabbr said:

Oh can you rip them? I guess the format RIP'd before I learned how to rip 

DVD audio explorer and it's free😉

[mansr]

46 minutes ago, alfe said:

Don't believe wikipedia too much, the maximum transfert rate of DVD is 11,08 Mbps.

Raw data rate, yes. The usable rate for audio/video data is lower. Either way, it's not enough for uncompressed 6-channel 24-bit 96 kHz.

[lucretius]

40 minutes ago, jabbr said:

 

In my view it died because there is no way for me to play DVD-A on my computer, or store it in my library. I still buy CDs and SACDs ... I started buying SACDs when I learned how to rip these to my computer using my PS-3.

 

Of course, now you can easily rip DVD-A disc's to flac using DVD Audio Extractor.

[lucretius]

5 hours ago, new_media said:

 

Apple certainly didn't invent DRM. Liquid Audio, which later became Windows Media Audio, was offering DRM-crippled downloads at least 4 years before the iTunes Music Store launched. 

 

Liquid Audio did not build a digital storefront, as iTunes did on April 28, 2003. Rather, the company sold its software to record labels, musicians, and retailers, which used the Liquid Audio platform to sell music through their websites. Further, the major labels would only make old, crappy content available for download; they weren't providing anything that was selling well through physical distribution.

 

Early in 2003, Anderson Merchandisers, distributor for Wal-Mart, bought some of the assets of the troubled Liquid Audio.  At the time, Liquid Audio had licenses to distribute only 350,000 (approximately) songs.

 

Microsoft really did not have any good solutions on how to challenge Apple. In 2004, Microsoft created an MSN Music download store to compete with Apple's iTunes Music Store, though its sales in comparison were negligible.

 

Liquid Audio did not become Windows Media Audio. Windows Media Audio is a series of audio codecs and their corresponding audio coding formats developed by Microsoft.

[new_media]

Microsoft paid Liquid Audio $7M for their DRM patents in 2002, but perhaps they didn't actually use Liquid Audio's technology in their own products.

[Ishmael Slapowitz]

2 hours ago, jabbr said:

 

In my view it died because there is no way for me to play DVD-A on my computer, or store it in my library. I still buy CDs and SACDs ... I started buying SACDs when I learned how to rip these to my computer using my PS-3.

??? I have been ripping DVD-As of every sample rate for over a decade. As easy as ripping a CD.

[Ishmael Slapowitz]

1 hour ago, lucretius said:

 

Of course, now you can easily rip DVD-A disc's to flac using DVD Audio Extractor.

...going on a decade +

[Ishmael Slapowitz]

1 hour ago, lucretius said:

 

Of course, now you can easily rip DVD-A disc's to flac using DVD Audio Extractor.

Yes, a bargain at around 35 bucks. Does Blu Rays too.

[jabbr]

8 minutes ago, Ishmael Slapowitz said:

??? I have been ripping DVD-As of every sample rate for over a decade. As easy as ripping a CD.

 

Right, I understand — last time I looked into it was pre-Blu-Ray no doubt. So ... what is a good place to buy these?

[Ishmael Slapowitz]

Just now, jabbr said:

 

Right, I understand — last time I looked into it was pre-Blu-Ray no doubt. So ... what is a good place to buy these?

right here-

http://www.dvdae.com/

[Kal Rubinson]

3 hours ago, The Computer Audiophile said:

At least you can still use that. The music isn’t playable anymore. 

Right.  It sits on the shelf next to my HDRadio cap!

[jabbr]

1 hour ago, Ishmael Slapowitz said:

right here-

http://www.dvdae.com/

 

No I mean the DVD-A discs themselves ... the usual places I buy don't seem to have wide range of DVD-A

[Ishmael Slapowitz]

4 minutes ago, jabbr said:

 

No I mean the DVD-A discs themselves ... the usual places I buy don't seem to have wide range of DVD-A

eBay is your friend. also if you are into progressive rock, Tull, King Crimson, etc the world is your oyster..the Steven Wilson remix/remasters....Yes on Blu Ray only I believe. But then again all these became available as downloads once the physical products sold their course.

[Rt66indierock]

On 7/1/2019 at 3:11 PM, Ishmael Slapowitz said:

Is it possible to see what 7d's motion to dismiss and/or response was?

 

The motion to dismiss and the response are pretty boring. The original complaint is a pretty good read. 2014 was a very interesting year and the number people trying get in our pockets is growing.

[Ishmael Slapowitz]

47 minutes ago, jabbr said:

 

No I mean the DVD-A discs themselves ... the usual places I buy don't seem to have wide range of DVD-A

You can also search amazon for Dual-Discs....

[Ishmael Slapowitz]

11 minutes ago, Rt66indierock said:

 

The motion to dismiss and the response are pretty boring. The original complaint is a pretty good read. 2014 was a very interesting year and the number people trying get in our pockets is growing.

All legal filings are boring...in general..just wondering what their responses to HDT's claims, which are pretty serious, are.

 

"....and the number people trying get in our pockets is growing.."

 

You can say that again..

[FredericV]

Being on Facebook in too many audiophile groups, sometimes we see some crazy SH*

 

Why would you want to put MQA on analog tape? Since I'm in the music server business I don't care about analog tape or vinyl. Decent digital can sound very analog. Why go through all the hassle of MQA on R2R?

[Ishmael Slapowitz]

43 minutes ago, FredericV said:

Being on Facebook in too many audiophile groups, sometimes we see some crazy SH*

 

Why would you want to put MQA on analog tape? Since I'm in the music server business I don't care about analog tape or vinyl. Decent digital can sound very analog. Why go through all the hassle of MQA on R2R?

Of course this is preposterous. But it is this type of nonsense that even allowed MQA to advance past 2015.

[FredericV]

5 minutes ago, Ishmael Slapowitz said:

Of course this is preposterous. But it is this type of nonsense that even allowed MQA to advance past 2015.

It's as preposterous as this:
 

Quote

Harnessing MQA technology for a different format – this time vinyl – “Special 33” from jazz trio Blicher Hemmer Gadd, is a limited edition double LP, remastered using MQA and produced in collaboration with Brinkmann Audio.  Featuring the trio’s favourite songs from their two previous albums, all ten tracks were recorded live at shows performed in some of Europe’s leading jazz clubs, with one song never previously released.  Pressed on 140g vinyl with a limited run of 500 copies, Special 33 quickly sold out upon release earlier this year.  You can learn more about the story and production process, as well as listen to Brinkmann’s first LP, in the Brinkmann Audio suite (Atrium 4.1, E108).

and this is from MQA's own site ...

Some recording -> MQA encoding -> some Brinkmann dac -> vinyl .... yes as absurd as putting MQA on R2R

[Rt66indierock]

On 6/30/2019 at 2:23 PM, John_Atkinson said:

 

See David Blackmer's article at http://recordinghacks.com/articles/the-world-beyond-20khz/?fbclid=IwAR1qwk0hX17D2l9ADbl-40Ggcba1Be_MAEJsWICZiCulP30hq4HCi0nAllU

 

John Atkinson

Technical Editor, Stereophile

 

 

John a couple of points,

 

When I researched whether high resolution audio would benefit listeners in 2009 and 2010, I looked at David Blackmer’s work. I found his analysis, opinions and evidence unpersuasive.

 

HDTracks.com, LLC is suing 7digital for failure to provide a streaming platform for them. In a June 1, 2017 email David Chesky states “Everyone we want to know about the service knows about it already.” Were you one of them?

[The Computer Audiophile]

11 minutes ago, Rt66indierock said:

 

John a couple of points,

 

When I researched whether high resolution audio would benefit listeners in 2009 and 2010, I looked at David Blackmer’s work. I found his analysis, opinions and evidence unpersuasive.

 

HDTracks.com, LLC is suing 7digital for failure to provide a streaming platform for them. In a June 1, 2017 email David Chesky states “Everyone we want to know about the service knows about it already.” Were you one of them?

I certainly knew about it and received a demo in Munich. That has nothing to do with anything though.

[Rt66indierock]

1 minute ago, The Computer Audiophile said:

I certainly knew about it and received a demo in Munich. That has nothing to do with anything though.

 

It has to do with the timeline. HDTracks was approached with an offer to build and support an MQA streaming services in 2014 before any number of significant events occurred.

[The Computer Audiophile]

1 minute ago, Rt66indierock said:

 

It has to do with the timeline. HDTracks was approached with an offer to build and support an MQA streaming services in 2014 before any number of significant events occurred.

Who are you Perry Mason 😁