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wklie

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About wklie

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  1. If Tidal offers the same non-MQA version of the album as Qobuz, then yes. If your particular album is available only as MQA (Tidal master or MQA CD) on Tidal, then no. If you use Roon, check the different versions.
  2. This depends on the brand, and in some cases, firmware version. Some brands pass non-MQA to MQA decoder, Lumin does not. There is a well documented case in a Stereophile review of a certain USB DAC. I recognized really early on that some customers would not want everything pass through MQA decoder, so we checked a stream is MQA before passing it to the MQA decoder.
  3. I assure you we have different rendering profiles for our different hardware by sending different models to MQA Ltd. to do profiling. It created additional work for me since some of our models share the firmware binary and therefore the profile needs to be set at run time instead of compile time. I have worked on integration with DAC chips from four semiconductor manufacturers. Different MQA DAC should achieve the same "deblurring" characteristic but they will not sound the same or eliminate a price difference between a USD99 DAC and a USD90000 DAC. Think of it as a very optimiz
  4. No need to apologise. This thing is complex and secretive, and that's why I try to provide answers wherever I can from my experience of integrating this technology.
  5. I found your posts there. No, I don't think this is what he said. Roon MQA Core decoding cannot occur in your scenario because Sonos do not support over 48kHz. Since no MQA Core decoding occurred, Roon should be sending the MQA CD just as your native platform gets the same MQA CD from Tidal, if you picked the same version in both players. There are four versions of the same album. He said he suspected it is a display bug with the 24 bit thing, but I disagree on this. I claim that it is not a bug, I claim Roon is functioning and reporting correctly regarding the bit
  6. Every streaming service provider needs to deliver the same music at multiple bit rates. Tidal needs to deliver 96kbps AAC, 320kbps AAC, 16/44.1 FLAC, 24-bit MQA for different subscription types or settings for the same music. Remember that in addition to HiFi Plus, HiFi, there is also the lossy Premium subscription. Even Spotify has multiple bitrates to choose from for the same music with the same lossy subscription: 96kbps, 160kbps, 256kbps, 320kbps.
  7. 1. Roon always uses a consistent set of MQA decoding logic. 2. You got the 16/44.1 MQA file. Roon MQA Core decoding is activated as expected. 3. MQA 96kHz or MQA 192kHz music are delivered in 48kHz FLAC. The MQA signalling in the 48kHz file is destroyed by asking for a 44.1kHz file at HiFi quality instead of the Master quality.
  8. My understanding is this and I have not seen any evidence that this would be wrong: With HiFi Plus, you pay more and can get the Master quality level (up to MQA-coded 24/44.1 and 24/48 delivery in FLAC). With HiFi (non Plus), you pay less and are not allowed to get the Master quality level. I assume HiFi quality is always the same resulting in 16/44.1 FLAC regardless of which subscription you have.
  9. All are correct. If you have another signal path question you may point me to it and I'll see if I can answer it.
  10. Tidal is not doing the upsampling. It it delivering to you a 16/44.1 MQA file. MQA Core decoder (in Roon or any MQA software or MQA digital output hardware) outputs 88.2kHz. This is normal.
  11. The better alternative to USB HDD is to run the free MinimServer software on a networked computer or NAS with the drive plugged into it. Let MinimServer scan the drive. Then in Lumin app, choose the library as the MinimServer.
  12. For T2 output to USB DAC, it needs to be switched using Lumin app from Analog to USB output. If you don't ever use the T2 internal DAC (analog output), you're probably better off using U1 MINI instead unless you require DSD512 (for Linux native DSD compatible DAC only). That being said, I do encourage users to try out our internal DAC (on T2 X1 D2, etc.), with DSD512 capability (T2 X1 only) and full MQA decoding.
  13. 0. This restriction cannot go away without contradicting MQA's philosophy to sound quality and all its marketing materials. 1. U1 MINI has digital outputs only, so it does MQA core decoding. D2 has both analog output and digital BNC-SPDIF output. When you use the D2 analog output, it does full MQA decoding. When you use the D2 digital output, it only does MQA core decoding. 2. I2S output is not supported. 3. If you intend to use an external DAC, use the U1 MINI which can do USB or AES / BNC / coaxial / toslink outputs. Functionally D2 behaves like a U1 MINI plus a DAC but ha
  14. Roon software does not. Roon Labs the company does. Just relaying Roon CTO's preference. It also causes NAS fail to sleep, and some users are not too happy about that. Then there are additional support issues caused by the use of NAS, such as obscure SMB options that one need to change on some NAS, or simpler ones such as the smb path syntax.
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