MQA at CES

[matthias]

The Aries Mini is MQA certified, but only via its analogue output.........!

 

Matt

[matthias]

IMO, they upsampled the original file to DXD and converted the DXD to MQA.

 

Matt

[matthias]

Do you think this papers are suitable for a non mathematical forum?

 

Matt

[matthias]

But the only correct recording is the Nielsen one to compare. The idea is that old 16 bit redbok should sound better with MQA applied on a non MQA DAC than if the same record has no MQA attached.

For the other tracks delivered in 24/352.8, they at least has to be converted to 16/44.1, and then compared with the 24/44.1 MQA file.

Still, not a good test, as you need original 16/44.1 and the same recording also in MQA codec. Agree ?

 

If you look at the file sizes you can see that the Nielsen MQA has the same size like a MQA from a DXD master. So it can be argued that they made first a transfer from the DAT tape to DXD and then applied the "magic" MQA process.

 

Matt

[matthias]

On the subject of disparaging that which we do not know, Joel on the Meridian forum posted this intriguing tidbit :

"I'm slowly reading through the "MQA at CES" thread on CA now. It's a tough one, because there are mistakes. Also Jussi (developer of HQPlayer who posts as Miska and knows a LOT about DSP) knows a lot more about DSP filters than me. However, I think he has made a mistake in assuming that MQA uses the same apodizing tech as Meridian's previous filter. More later..."

 

Can you provide a link to this post?

Thanks

 

Matt

[matthias]

Read the paper I attached earlier. It isn't a filter like other Meridian products.

 

Can you explain without to much scientific language what they do in the first step with the original recording?

Thx

Matt

[matthias]

Thank you both,

but if I am right this has nothing to do with the Decoding/Undecoding which follows later.

Is it possible to have this "B spline filtering" in a software player like HQplayer to get the same benefits?

 

Matt