Question, won't we need an mqa DAC in order to experience that format for comparison purposes?
I may have not been clear. I didn't want anyone to experience MQA but simply to listen to an MQA file on the DAC they currently own. Point is that even if MQA's diabolical plot came to fruition- nobody would be forced to buy anything. No new DACs at all. Use what you like. At the very least, it will sound the same as your 16/44.
Yes. I listened to the first track as 352k FLAC, CD-resolution 44.1k FLAC, and MQA-encapsulating FLAC through Beyerdynamic DT 770 M 80 ohm headphones via the audio out on a 2017 Macbook Pro using VLC version 2.2.8 (Intel 64bit). I couldn't hear any appreciable quality distinction between the three.
I loaded all three into Adobe Audition 11.0.0.199. The MQA-encapsulating FLAC was recognised as 44.1khz 2-channel audio represented via floating point values. Presumably, use of floating-point allows encoding additional information for MQA decoders, whilst permitting non-MQA decoding.
The CD-resolution FLAC was recognised as 44.1khz 2-channel 16-bit audio, and the 352k FLAC was recognised as 352.8khz 2-channel 32-bit audio.
I activated the Spectral Frequency Display on the three files loaded into Adobe Audition. Visually, the CD-res FLAC and MQA-encapsulating FLAC appear to have identical spectra, both losing all appreciable spectral energy over 15khz. The 352k FLAC indicates some energy just over roughly 20khz, rapidly fading to zero, but then shows some spectral energy reappearing from about 90khz to the roughly 100khz limit of the display. I presume this is some artifact of the recording or subsequent processing; perhaps some parasitic oscillation as it's consistent throughout the track.
The CD-resolution FLAC file is 24.4 megabytes in size, the MQA-encapsulating FLAC file is 51.7 megabytes in size, and the 352k FLAC is 409.4 megabytes in size.
Conclusion: In the absence of an MQA decoder, the MQA-encapsulating FLAC appears to be nominally equivalent to a CD-resolution 44.1khz 16-bit FLAC but requires roughly double the bandwidth.
Thank you for taking the time with this detailed post. I agree and that was my point, I'd say there's a 50/50 chance a listener would to be able to distinguish one from another when listening through a non-MQA DAC.That's why I don't get what the big deal is? I guess until the end of time audiophiles will form tribes and bicker to the end.
At this point, the only place I've had access to and heard MQA selections is on Tidal (and there are not that many!) and I can say that I have never heard anything remotely similar to what Botrytis is describing that he hears when listening to an MQA file. All I know is that the MQA streams I have heard all sound excellent. Actually, beyond excellent. Especially when compared to other versions that are available for streaming at the moment (and even some of the best CD versions I own). I also don't hear any loudness compression at all on any of them as he suggests. In fact, it's exactly the opposite. Not one of the tracks I've listened to had more dynamic compression. The master they seem to routinely go back to is the "pre-loudness" version (if available). Most I've listened to sound at the very least are equivalent to and sometimes better than the best master CD version of that recording (that I've heard or own). Never worse.
As far as the file being larger than 16/44 it doesn't matter, it's still small enough and doesn't sound any different on a non-MQA DAC. But comes with an added benefit for us streamers, it is still much smaller than the hi-res sample alternative it is encapsulating. Not a must but it's nice to have that option on some of the recordings I've heard.
I have both an MQA DAC and non-MQA DAC so it's not like I'm gong to fight the MQA battle but I do love streaming so at the moment, this is a plus for me. It just gives me another option. Nobody is ramming it down my throat. With Tidal I've added over 1,500 albums to my library in just one year and that's not counting all the new (to me) music I've listened to that never made it to my library. I have
NEVER EVER in my entire "audiophile" life added that much music in a year. I've even gone to live concerts to listen to artists and music that I never in a million years thought I'd like. High quality music reproduction can do that to you. So to me Hi-Fi streaming is fantastic, a godsend even. Of course I have my CDs which I have converted to FLAC but at the end of the day...this is the future and the future is here.
I don't see MQA as a threat but a temporary advantage for us streamers to get the best possible sound. From day one I've been a big proponent and supporter of Tidal. I was always hoping that we, collectively would show these providers that there is a viable market for high fidelity streaming. Competition is good. I hope Qubuz comes to the US and streams, I think I have enough bandwidth. But until then there's only one choice and many here seem intent on it dying (whether it's MQA or Tidal)... I'll never understand that.
One last point, MQA claims they go back to the original recording master notes to determine the exact ADC used to then "deblur" the recording. Couldn't that claimed deblurring and the time domain thing that MQA supposedly does possibly make all MQA capable DACs sound the same? Could this be why some DAC manufactures are resistant to include MQA on their DACs?