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In Reply to: RE: Finally went and did it-MQA posted by ahendler on April 27, 2016 at 14:54:56
Let us know what you think! But I'm already curious to know, where are your "equivalent 16/44 files" coming from?
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From the 2L site. They have single albums in multiple formats
Alan
From the 2L site. They have single albums in multiple formats.
Getting the 16/44 'equivalent' files from a MQA business partner and provider of the MQA files would have me a little concerned.
I'd feel better about sonic comparisons if I could compare MQA against my own 44/16 rips, or those from a separate independent source.
I wonder what titles are available for comparison.
2L takes a file and then encodes it in the following formats which you can then buy
From the album Stereo
24BIT/352.8kHz Stereo
24BIT/192kHz Stereo
24BIT/96kHz MQA stereo
original resolution CD
16BIT/44kHz 5.1 Surround
24BIT/96kHz Stereo DSD 256
11.2896Mbit/s Stereo DSD 128
5.6448Mbit/s Stereo DSD 64
2.8224Mbit/s
5.1 Surround
They are all sourced from the original album file
Alan
Questions, questions , questions!
24/44 and 24/48 is the standard MQA sampling rate
Alan
As far as I understand MQA, MQA doesn't have a sample rate. It uses whatever rate the master recording is (master in this sense being the original file chosen by the repertoire owner). So if 2L recorded the file in DXD and want to release the file to the public in this format via MQA then that is what you get. MQA is compatible with PCM to 768KHz or DSD256.
Bob Stuart answers many questions over at CA.
No, the MQA file that is finally released to the public is 24/44 or 24/48
at a bit rate of 1.5 mbps
Alan
John Atkinson said MQA is PCM only, in response to a post here.
Allan said MQA is 24/44 or 24/48.
I'll read the Link you provided, thanks.
I hope I haven't started an argument here...
In MQA the 24/44.1 or 24/48 or whatever rate file is just the "wrapper" for delivery which contains a file at the rates up to those in my earlier posting. The original file is recovered when decoded.
Edits: 04/27/16
The "original file" (whatever the original master was) is not recovered from the decoded MQA. That would be mathematically impossible if the original file was at a higher resolution than 44/24 or 48/24, since there would not be enough bits. Rather, a "lossy" version of the original file is recovered.
There is some marketing hype that MQA can be better than the original file itself. If you believe that, there's a bridge in Brooklyn you can purchase. Of course if you compare an MQA version made from one master with a different master file (or CD downsample thereof) you may discover that the difference in mastering is 100x greater than any format differences.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
I wonder if you really understand what MQA is and does? Or. at least, what the claim is. I did provide a link in an earlier post in this thread.
There is no claim at all about MQA being better than the original file. There is a claim about an MQA file drawn from the master being better than the CD or other format previously issued to the consumer however.
At this point I feel a need to use the usual disclaimers. I am not connected in any way. shape or form to MQA or its progenitors, manufacturers or promoters and have no interest aside from general debate.
MQA is supposed to take you ahead of the ADC used to produce the digital master . I understand MQA very well. Alan
Said distribution was problematical ( my paraphrase...),
but I've had no problem with DSD 128 Downloads.
Anyway, it's good to see something new.
Wouldn't be surprised if it surprises us.
I hope content will be both Downloads and Streaming.
Seems like Steaming Quality could be way better than now.
Will know as soon as Tidal starts streaming in MQA. Supposed to happen soon
Alan
That is correct I think. The fact that it is 24/44 or 24/48 with a low bitrate is what allows the MQA file to be streamed
Alan
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