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Thank you Blondie
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Eversolo DMP-A6 Streamer Review
- Thread starter amirm
- Start date
Thanks.
The MiniDSP Flex is my DAC as well as DSP. Just streamer + DAC(DSP) + power amp. I don't use the DAC in the Bluesound Node.
So I can get HDMI and bluetooth headphone with Pi4 leaving Roon required for multiroom streaming? That's good.
I would love the upgrade in sound quality that Eversolo A6 brings but can't see past the missing features that I use.
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Vladimir.vohmeanin
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Hello. You mean that tidal gives you 48khz, but solo's dac upsamples it to 192khz?
It is showing MQA. MQA "lies".
Vladimir.vohmeanin
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Don't understand((( MQA files upsamples? But here tidal gives flac, and solo's dac convert it to PCM?
Nutul
Addicted to Fun and Learning
FLAC is PCM. FLAC is a file container, as is ALAC, MP3, DSF etc. BTW, MQA was packed inside a FLAC container.
PCM is the method for representing an audio stream, as is DSD (stored in DSF and DFF containers - DFF only different because it mandates not to attach any metadata to it)
Now Tidal has abandoned MQA and is moving towards FLAC, which is lossless, is free, gives about 50% compression ratio, and does not come with noise artifacts as MQA did.
There is a nice talk about MQA by Archimago of GoldenSound about both both the tech (?) behind MQA, and the scam it was.
Flac files contain pcm data. Pulse code modulation. The same as wav files. Straight audio data. No MQA bs. What you see is what you get.
Edited to add: the dac converts the digital data from pcm to actual audio. Digital to analog converter.
Galliardist
Major Contributor
That's Qobuz, not Tidal. Qobuz only hosts a small number of MQA files that were directly uploaded by a few music providers, principally 2L. So this is actual "high resolution" music. For most of us, that "high resolution" part is inaudible, though it may move the artifacts generated by some filters out of the audible range. It's still not certain that high resolution audio brings actual audible benefits, and it's certainly no night and day stuff to worry about.
As for MQA, it is a "special" format that uses FLAC to carry it in the uses it's been put to, principally Tidal. MQA moves data around and compresses it. The higher frequency data is lossily compressed and then cut and pushed when encoded into the lower bits of a "24 bit" file format, and the decoder - well, sort of puts it back, so the output from the MQA codec is a "higher resolution" file but not the same as the original. The lowest bits are effectively lost, and dither used under what is left, so an MQA file is effectively between 13 and 15 bits of actual data. Most or all of this is inaudible in normal use through speakers.
Additionally, to save extra space, some of the audible data is also thrown away using a slope or "triangle" to determine what should be lost. MQA effectively declare any sound outside of that "triangle" not to be music and the converter warns the user that there is a problem. This may be audible if someone makes music with lots of energy at higher audible frequencies, and also would prevent some tests from working, if the test data could ever be presented through MQA.
The default filter used by MQA (it can switch to others) also allows a fair bit of aliasing. Again, probably inaudible.
MQA is really just a waste of time. Tidal are getting rid of it, slowly, and more slowly than they were in the second half of last year.
Galliardist
Major Contributor
MQA is put in FLAC containers by Tidal, which can cause confusion with some displays like the one just posted.
In fact a FLAC file could contain any data you want, as you can use some of the flags in the header to tell your device that it contains different data: even non-audio data, if you wanted.
Werther44210
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I think not much, the clock more efficient on the DMP Master Edition, I use the A6 not ME in transport, it is excellent. Maybe Keith can confirm.
No difference as streamers or through their analogue output.
Keith
Keith
Really? Not even when using their dacs?! What's the difference then?
Money.
Would really be interested in seing measurements for the ME and comparison with the original.
Amir has measured the original, it is audibly transparent so even if the measurements of the ‘Master’ were nominally ‘better’ you wouldn’t be able to discern any difference , in fact for the master to be audibly different it would have to measure much more poorly.
Keith
Keith
yllanos
Active Member
This may be a silly question but is there a way to identify what albums on my library are DSD? I know I have a few of those but I don't seem to easily find them among the sea of FLAC content I have.
Perhaps I am missing something obvious.
Perhaps I am missing something obvious.
Thanks. I was pretty sure the discussion had already taken place but at 167 pages, i thought it was easier just to ask again.
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