In Reply to: Blind Testing posted by John Atkinson on October 28, 2016 at 04:13:08:
Just to address another statement made in the MQA thread,: Doug Schneider
wrote that:
>There was a lot of misinformation about MQA files being the same size as
>CD-resolution files. They're not. CD resolution is 16-bit/44.1kHz, while
>MQA is 24/44.1 or 24/48. At minimum, they're 50% larger.I compared the file sizes with one of my recordings in the article linked below.
From that article:"The 24/88.2 WAV master file for my recording of the Portland State
Chamber Choir's 2014 performance of "Amazing Grace" is 169.5MB. The
MQA-encoded FLAC version is just 51.5MB: 30% of the original size. For
reference, the 24/88.2 Apple Lossless version is 90.7MB, or 53.3% of the
original, and the version on the CD, limited to 16-bit/44.1kHz, is 55.7MB,
or 33%. MQA, therefore, gives the greatest reduction in file size and
thus necessary streaming bandwidth..."The MQA FLAC file is 51.8MB, the CD is 55.7MB. It is fair to point out
that the CD file is uncompressed and that a lossless compression codec
like FLAC would reduce the file size to around 30MB. But I don't believe
it was that comparison that Doug was referring to in the quoted text. If
it was, then it wasn't clearly expressed.
John Atkinson
Technical Editor, Stereophile
Edits: 10/28/16
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Follow Ups
- RE: Blind Testing - John Atkinson 04:33:32 10/28/16 (9)
- I think I'm the source of the "misinformation" :) - E-Stat 07:09:09 10/28/16 (8)
- Which is the reason MQA only works for files and not CD-type discs - John Marks 07:28:19 10/28/16 (7)
- RE: Which is the reason MQA only works for files and not CD-type discs - Doug Schneider 08:19:53 10/28/16 (0)
- RE: Which is the reason MQA only works for files and not CD-type discs - John Atkinson 07:45:40 10/28/16 (5)
- RE: Which is the reason MQA only works for files and not CD-type discs - Doug Schneider 08:23:56 10/28/16 (4)
- RE: Which is the reason MQA only works for files and not CD-type discs - John Atkinson 08:28:10 10/28/16 (3)
- RE: Which is the reason MQA only works for files and not CD-type discs - Doug Schneider 08:32:17 10/28/16 (2)
- The biggest problem with MQA is .. - 13th Duke of Wymbourne 12:42:48 10/28/16 (1)
- it is too clever for most to understand - fmak 10:29:31 11/05/16 (0)