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MQA is Vaporware


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6 hours ago, ARQuint said:

Is Archimago suggesting that there's an important difference between "unattributed" and "anonymous"? Our Product of the Year Awards are actually written by the person who wrote the full review, even though his name or initials aren't given. But the issue number is provided in the blurb so you can find out who it was. Look, I'm no partisan when it comes to the MQA debate but I continue to detect a double standard when it comes to public discussion of this technology. Engineers who have anything good to say about MQA are either unqualified or shameless shills; engineers who condemn it are courageous truth-tellers. The dynamic, unfortunately, parallels the tone of the discussion with far more critical issues of the day—vaccination, climate change, election integrity, and so on.

Andrew Quint

Senior Writer, TAS

Another ARQ drive-by, replete with revisionist history, and false equivalencies intended to deflect the real issues at hand. In other words, more from the very same tired old playbook.

no-mqa-sm.jpg

Boycott HDtracks

Boycott Lenbrook

Boycott Warner Music Group

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I think we are raining on MrQuint's money maker by bashing mQa. 

 

If mQa would just show data but of course since they patented it, all the data HAS be in the patent. The patent shows how the system works and it is crap.

Current:  Daphile on an AMD A10-9500 with 16 GB RAM

DAC - TEAC UD-501 DAC 

Pre-amp - Rotel RC-1590

Amplification - Benchmark AHB2 amplifier

Speakers - Revel M126Be with 2 REL 7/ti subwoofers

Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects

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2 hours ago, botrytis said:

I think we are raining on MrQuint's money maker by bashing mQa. 

 

If mQa would just show data but of course since they patented it, all the data HAS be in the patent. The patent shows how the system works and it is crap.

 

So sad if the "high end" audio magazines are dependent on stuff like mQa for making money! Speaks poorly for the niche for putting so much emphasis on what amounts to pulling wool over consumers' eyes...

 

Also to correct something above: "This mQa encoded track uses filters with low passband stopband attenuation, hence increased ultrasonic imaging artifacts in the FFT".

 

Archimago's Musings: A "more objective" take for the Rational Audiophile.

Beyond mere fidelity, into immersion and realism.

:nomqa: R.I.P. MQA 2014-2023: Hyped product thanks to uneducated, uncritical advocates & captured press.

 

 

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9 hours ago, JoeWhip said:

While I try to stay out of the MQA debate generally, that What HiFi piece read like a press release written for the MQA folks.

 

Honestly, all the other audio magazines seemed to do the same thing.

Current:  Daphile on an AMD A10-9500 with 16 GB RAM

DAC - TEAC UD-501 DAC 

Pre-amp - Rotel RC-1590

Amplification - Benchmark AHB2 amplifier

Speakers - Revel M126Be with 2 REL 7/ti subwoofers

Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects

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6 hours ago, botrytis said:

 

Honestly, all the other audio magazines seemed to do the same thing.

Soundstage - for the most part - and a few  others (small ones) didn't.

Main listening (small home office):

Main setup: Surge protector +>Isol-8 Mini sub Axis Power Strip/Isolation>QuietPC Low Noise Server>Roon (Audiolense DRC)>Stack Audio Link II>Kii Control>Kii Three (on their own electric circuit) >GIK Room Treatments.

Secondary Path: Server with Audiolense RC>RPi4 or analog>Cayin iDAC6 MKII (tube mode) (XLR)>Kii Three BXT

Bedroom: SBTouch to Cambridge Soundworks Desktop Setup.
Living Room/Kitchen: Ropieee (RPi3b+ with touchscreen) + Schiit Modi3E to a pair of Morel Hogtalare. 

All absolute statements about audio are false :)

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7 hours ago, firedog said:

Soundstage - for the most part - and a few  others (small ones) didn't.

 

THANK YOU for the correction - I appreciate it.

Current:  Daphile on an AMD A10-9500 with 16 GB RAM

DAC - TEAC UD-501 DAC 

Pre-amp - Rotel RC-1590

Amplification - Benchmark AHB2 amplifier

Speakers - Revel M126Be with 2 REL 7/ti subwoofers

Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects

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On 12/20/2021 at 8:20 AM, FredericV said:

Lot's of work, taking a small break now and noticing that the nr1 influencer is always referring to master tapes and the analog domain, even though we don't use those any longer since 201X - it's all digital now ....

https://www.monoandstereo.com/2012/08/interview-with-2l-morten-lindberg.html

2L.no does not use analog master tapes .... I'm betting everything is file based now and they probably have offsite backups. DAW's do not work with tape.

Furthermore he claims it is impossible to measure time smear, as answer on the question for any actual proof:


image.png.b766bbb78d95dd056be6933603d57e02.png

We have to revert to the 'GO LISTEN' argument now?

Let's deblur this: there is no proof, mQa has never shown any proof that it can correct time smear (all it has shown is upsample filters with one cycle of postringing, which is no proof that it corrects audible errors). Furthermore, the 'GO LISTEN' argument was already debunked by the McGill U mQa study.

 

Hey @FredericV... Fascinating that Veth is still around shilling.

 

I don't know what you guys think, but that Mono&Stereo site is just about the most pretentious thing I have ever seen online! You got ads all over the place to the point where they overwhelm any actual text. It's clearly all about luxury, not actually high-fidelity even though the text tries to convince us otherwise. Unbelievable. I guess advertising on that site must still work to sell some products otherwise why would companies presumably pay dollars to put banners up.

 

Yeah, 2L records everything as 24/352.8 PCM. No mystery about time or frequency domain characteristics. Their SACD/DSD stuff all converted from that original PCM.

 

As for mQa and time domain, maybe they can just show us what a square wave looks like comparing say an original 10kHz 24/352.8 and that same waveform having gone through the mQa meat processor down to a 24/44.1 file, then reconstituted back up to 352.8kHz using one of their filters. I can simulate this, but would much prefer to see the "real deal". Let's just say this ain't likely gonna be exactly the same. ;-)

 

Maybe Mr. Veth who seems to know a lot about mQa can do this for us and explain why the encoding is so awesome...

 

Archimago's Musings: A "more objective" take for the Rational Audiophile.

Beyond mere fidelity, into immersion and realism.

:nomqa: R.I.P. MQA 2014-2023: Hyped product thanks to uneducated, uncritical advocates & captured press.

 

 

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1 hour ago, Archimago said:

As for mQa and time domain, maybe they can just show us what a square wave looks like comparing say an original 10kHz 24/352.8 and that same waveform having gone through the mQa meat processor down to a 24/44.1 file, then reconstituted back up to 352.8kHz using one of their filters. I can simulate this, but would much prefer to see the "real deal". Let's just say this ain't likely gonna be exactly the same. ;-)

A square wave is an out-of-band signal, so it's not a good example.  The ADC 2L uses is useless for encoding frequencies above 48 kHz as it outputs only noise. So, any of their music encoded above 96k is a waste of space.

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12 minutes ago, Currawong said:

A square wave is an out-of-band signal, so it's not a good example.  The ADC 2L uses is useless for encoding frequencies above 48 kHz as it outputs only noise. So, any of their music encoded above 96k is a waste of space.

 

Curious @Currawong, what ADC is 2L using!? Obviously many mics will not have much hi-res bandwidth, but the ADC itself limited to 48kHz capture while running at 352.8?

 

The square wave idea is just as a response to Veth's assertion that it's "technically impossible to measure time smear".

 

Archimago's Musings: A "more objective" take for the Rational Audiophile.

Beyond mere fidelity, into immersion and realism.

:nomqa: R.I.P. MQA 2014-2023: Hyped product thanks to uneducated, uncritical advocates & captured press.

 

 

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6 hours ago, Archimago said:

but that Mono&Stereo site is just about the most pretentious thing I have ever seen online!

 

It's an "audiophile porn" site. No actual info, just piectures to make you lust after very expensive HW. Click bait for the massive amounts of ads on the site.

Main listening (small home office):

Main setup: Surge protector +>Isol-8 Mini sub Axis Power Strip/Isolation>QuietPC Low Noise Server>Roon (Audiolense DRC)>Stack Audio Link II>Kii Control>Kii Three (on their own electric circuit) >GIK Room Treatments.

Secondary Path: Server with Audiolense RC>RPi4 or analog>Cayin iDAC6 MKII (tube mode) (XLR)>Kii Three BXT

Bedroom: SBTouch to Cambridge Soundworks Desktop Setup.
Living Room/Kitchen: Ropieee (RPi3b+ with touchscreen) + Schiit Modi3E to a pair of Morel Hogtalare. 

All absolute statements about audio are false :)

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MP3 uses floating point for efficiency, so ....

why not recycle this technique used by lossy codecs, and rebrand it to "fractional bits" to make it sound special


afbeelding.png.de16b0003b8ca2521e472bce17c2cbf9.pngmore special

I had to google to find the quote in this canned mQa article from 2016:

https://www.theabsolutesound.com/articles/beyond-high-resolution

 

Is there any new research? Any new ADC's which use this sampling kernel? Guess not ...


 

Designer of the 432 EVO music server and Linux specialist

Discoverer of the independent open source sox based mqa playback method with optional one cycle postringing.

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3 hours ago, FredericV said:

MP3 uses floating point for efficiency, so ....

why not recycle this technique used by lossy codecs, and rebrand it to "fractional bits" to make it sound special


afbeelding.png.de16b0003b8ca2521e472bce17c2cbf9.pngmore special

I had to google to find the quote in this canned mQa article from 2016:

https://www.theabsolutesound.com/articles/beyond-high-resolution

 

Is there any new research? Any new ADC's which use this sampling kernel? Guess not ...


 

 

Yup, I think you're right, likely just referring to mQa encoder operating in 32-bit floating point, hence the "fractional" adjective. All rather silly and seems to be just semantics with a bit of voodoo/exaggeration/hype mixed in... A bit like what "lossless" means to these people.

 

That Veth is something else! I hope he gets paid well for talking like this.

 

Archimago's Musings: A "more objective" take for the Rational Audiophile.

Beyond mere fidelity, into immersion and realism.

:nomqa: R.I.P. MQA 2014-2023: Hyped product thanks to uneducated, uncritical advocates & captured press.

 

 

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On 12/20/2021 at 9:30 PM, botrytis said:

I think we are raining on MrQuint's money maker by bashing mQa. 

 

If mQa would just show data but of course since they patented it, all the data HAS be in the patent. The patent shows how the system works and it is crap.

I disagree.  Having been involved with more than one patent application, my understanding is that the goal is to give enough information so that it will protect your idea, but not enough so that it can be slightly modified and circumvented by others.  That's why patent attorneys exist - they walk that fine line between protecting an idea and not disclosing too much.  

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31 minutes ago, StephenJK said:

I disagree.  Having been involved with more than one patent application, my understanding is that the goal is to give enough information so that it will protect your idea, but not enough so that it can be slightly modified and circumvented by others.  That's why patent attorneys exist - they walk that fine line between protecting an idea and not disclosing too much.  

 

Well, having written a patent or two and going through classes on patents, in the US one has to give all the information on how the particular item works, built, etc. Basically, a patent is the government giving exclusive rights to the company who owns it. No one else can produce it.

 

Now IP, or intellectual property, while a patent is one, another is internal secret.  That is like the Coca-Cola formulation, only a few people know that secret. That is the other part.

 

Many of the patent lawyers, I know, are pretty clueless.

Current:  Daphile on an AMD A10-9500 with 16 GB RAM

DAC - TEAC UD-501 DAC 

Pre-amp - Rotel RC-1590

Amplification - Benchmark AHB2 amplifier

Speakers - Revel M126Be with 2 REL 7/ti subwoofers

Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects

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