MQA Discussion

......I do question weather it can best the top download formats and SACD for that matter......

MQA can and does sound better than hires pcm when played via a Meridian DAC/player, as was my experience with the Meridian 808v6.

But when playing hires pcm or dsd via a high-end non-MQA DAC, the non-MQA file sounds better than the MQA version, as was my experience with an Esoteric non-MQA DAC.
 
I guess we can add Benchmark to the ever growing list of DAC manufactures coming out against MQA. Very interesting read....
 
And sadly, that makes two :facepalm:


Just to catch up on the discussion, it appears that a few DAC Units that use custom ASIC Chips for their internal DAC functions (ESS, Wolfson, etc.) can become "MQA Compliant" via a FW upgrade. So building on that -- Is it possible that the FW upgrade to these units are simply upgrading the DSP functions within the DAC Unit and don't even touch the DAC Chip? I believe that would imply MQA is more of a tweak/adjustment of the signal.

I recall another Bob who came out with a technology that was the bee's knees in the 80's. It was called "sonic holography". The company was Carver and it was their C-9 model. I recall sitting and listening to it and being amazed at the expanded soundfield it created. The soundstage was 3-Dimensional and I was amazed that two speakers could pull this off. It never really caught on though. Just seems eerily familiar which is why I bring it up.

So let's just assume that MQA really does make listeners "believe" that the music sounds better. It may not be better than the original but it's the listener's perception of the sound that is what matters (esp to MQA). Think of it like treble and bass adjustments. A very flat recording could be assisted by the appropriate EQ adjustments (some might not like that, which is why I think that some people just don't care for MQA on recordings they're familiar with, but who knows) just like MQA is adjusting timing and other phase properties. The side affect is that the signal becomes lossy as a result. If you were to adjust the bass on a track and recapture that in digital form and then compare that to the original, I'm fairly certain it wouldn't be possible to recover the original form. MQA needs to modify the signal that might mean technically degrading it from the original (MQA is a lossy technique) but in the end we get the perception of better sound quality.

Just a hunch really and this is all speculation -- someone correct me please. I may be getting too far off base here. FWIW, I personally like my preamps without bass/treble controls. I want to hear the original signal, warts and all. Not sure what that means for MQA. It is fascinating the more I understand about it.

Also, RE DCS -- I think there's some kind of backstory as to why they decided to come out with the "dCS Network Bridge" as their solution to providing MQA to the Debussy and other DAC's (that aren't the Rossini and Vivaldi). Here's a link to a photo I found. https://www.instagram.com/p/BKGATg0BTd_/ I also have their marketing pdf is anyone is interested - just ask and I'll put it up here. But my guess is that it's got something to do with MQA's strict implementation requirements.



Yes..one, not 2

Read the post correctly...
 
MQA's filtering supposedly corrects phase and timing anomalies introduced by the recording ADC, nothing to do with EQ as far as I can tell. I'm still not a fan.
 
I guess the crux of my question is whether or not this can be done in DSP (which is Pre-DAC).

My "EQ" comment was a (poor) attempt at an analogy. :)


MQA's filtering supposedly corrects phase and timing anomalies introduced by the recording ADC, nothing to do with EQ as far as I can tell. I'm still not a fan.
 
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Mr. MQA

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Found this comment on an MQA audition at RMAF on Computer Audiophile and thought it would be of interest here, copied below for reference.

"What really impressed me and what I attended with the main intention to hear was MQA. I've read about it and wondered for a long time, and I must say that I was HUGELY impressed. I spent a lot of time in the room with MSB and YG. I'm not a fan generally of YG speakers, but the sound with MQA was superb.

I thought MQA likely was hype, but the demo provided direct a/b's of numerous hi res tracks in regular 24-96 hi res pcm, then followed immediately with the same track in MQA, and the difference was not subtle. Everyone in the demos had the same reaction, and I sat through a lot of demos. I also listened to Led Zepplin stairway to heaven sounding about the best I've ever heard it.


Granted, I do not know if the demo tracks were the ones that present MQA in the best light, but, to me, MQA and that room in particular was the star of the show. MQA is sort of what I thought (or hoped) hi res would sound like. It's just more "musical" to me based on the demo. A lot of people said it was "smoother" and it is somehow.

One other thing. The MQA people said that the entire Warner catalogue has been encoded for MQA. They would not (or could not) provide any update on timing regarding MQA streaming over Tidal, other than saying Tidal is "committed" to MQA."
 
Something I learned at RMAF which I thought was impossible. You can first unfold a MQA file with a MQA DAC, then feed the digital output to a DAC of your choice.
 
Interesting, do you know with which ones it will work?


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Interesting, do you know with which ones it will work?


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No, I don't know which ones could do it. The individual doing the demo (Bob Stuart was outside the room at this time) answered someone's question about using the output of the Pioneer MQA Portable into another DAC. He said yes it would be done. I stated I thought MQA could only be output as an analog signal and he informed me that was incorrect.
 
http://www.realhd-audio.com/?p=5864

When I first learned about WB getting behind the MQA format, I thought it meant that they would mine their catalog and create MQA versions of everything. That’s not the case. According to Jeff Dean, only the 3500 “high-resolution” albums that have already been transferred from analog masters to high-resolution PCM digital files are being targeted for MQAing.
 
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