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Posts posted by austinpop

  1. 11 minutes ago, Confused said:

    Can you get BBC sounds "on demand" in the USA?  I believe it might be possible if you are registered?




    Yes, thanks for that. I have no way of knowing what rate it's streaming, but it does allow me to catch the concerts on my own schedule.


    EDIT: the video links don't work, citing "out of UK," even with VPN, but the audio only links work.

  2. Thanks @Norton. I've made some effort to get that stream via VPN, as well as the BBC iPlayer, for which my VPN claims to have an explicit profile, but no success. I guess BBC is really really keen to dissuade access.


    That said, the 128k stream for non UK is proving quite enjoyable on my casual whole-home listening setup using Bluesound Node 2i and Pulse 2i. Since the concerts are in the afternoons here in the US, I just work with it on. Enjoying Mozart 40th right now!

  3. 17 hours ago, happybob said:

    1. Highend listening: PGGB files get played back directly (not via Roon) to an SRC-DX via USB and then out to an MScaler via dual SPDIF cables. The MScaler output goes to a Dave DAC via another set of dual SPDIF cables. In this scenario only 24 bits get sent to the MScaler. The MScaler then (unavoidably unfortunately) does a 3dB level adjust AND more importantly does its own noise shaping (can't disable this). The MScaler out to Dave is also 24 bits. So for this mode, either 32 bit or 24 bit "no noise shaping" is optimal, but does it matter which?


    I understand the convenience factor with this configuration, but before you settle on this long term, you may consider doing your own listening tests to confirm how much you lose in SQ (subjectively, to your ears, in your system) between the above (call it A), and an optimal configuration B, where you connect to an SRC-DX via USB and then straight out to the DAVE via dual SPDIF cables.


    In A, you'd be feeding non noise-shaped 24-bit data to the chain, while in B, you'd be feeding noise-shaped 24-bit data.


    In my past listening tests, when ZB first introduced noise shaping in development, the increase in SQ from noise shaping over standard rounding/truncation (only to 32 bit — this was pre- SRC-DX, mind you) was quite substantial. Truncation effects on 24-bit would be even more severe.


    Still, ultimately, it's your system and your ears, so if the SQ delta between A and B isn't too large, then the convenience factor of A may be worthwhile.

  4. 33 minutes ago, ray-dude said:


    Great write up Rajiv!


    Having had prototype components strewn all over my living room and dining room for 6 months, stepping backwards to my DC3 was a very very difficult thing to do.  Can't wait to hear the pre production units and some of that ARC6 magic again!


    For DC4 owners, be prepared for an absolutely stunning lift to whatever impact DC4 has in your chain.  Pretty remarkable, esp. with a device that scales like the Chord DAVE.


    Kudos to you guys for all your experiments! I'm only hearing the end result, whereas you guys put in the work to suss out different alternatives. The end result is quite stunning.

  5. 12 minutes ago, auricgoldfinger said:


    Excellent post, Rajiv!  I'm curious...if you were at a live performance of Solti's Mahler 8th, would you be able to hear individual instruments during full-throated passages, or is that a function of listening to PGGBed files through your headphones?


    Thanks for calling out my sloppy phrasing, Brian! You're correct, that's not what I was trying to convey. Here is my edited sentence:


    ...where I could hear instrument groups as a collection of individual instruments, rather than a homogeneous whole, even during full-throated orchestral passages. 

  6. 11 hours ago, flkin said:

    Actually I’ve been trying PGGB wav tracks 24/32 bits, 8fs and 16fs combinations but in wav format will have to be few tracks at a time only with lots of administrative downtime in between. To date still working to get that large improvement others are talking about.  


    You have the Vinnie Rossi DAC 2.0 module right? And it has XMOS on USB, and supports up to 16FS, correct? Hmm, that should be a good candidate for PGGB.


    We can take this over to the PGGB thread, but one quick question: I hope you were trying PGGB with the NOS mode set to ON? I would expect so, else the whole point would be lost.

  7. 36 minutes ago, flkin said:

    Željko's aware of this issue already and has suggested he will look at it in the future. Unfortunately I can't try 24 bits as my demo has already expired. Perhaps later in the year when I have more time I will get a new computer/storage and make the move. I've made a bunch of 32bit wv files for trying in Euphony but I'll just have to wait until Euphony's updated before I can test them.


    I wonder how much overhead there is to decode a 32/768 wave pack file?


    It should be easy enough to convert .wv files back to .wav files, no? @Zaphod Beeblebrox?

  8. 5 hours ago, chrille said:

    And how could I maximise the number of taps with  an Opera recording that has got maybe 50-60 different "tracks" some lasting only 20-30 seconds and others 20 minutes or more and the complete work lasting 2-3 hours or even  3-4 hours as in some Wagner Operas?

    Is PGGG capable of processing such long works as Operas and still maximise taps?




    Many choral pieces are indexed in this way, even though the music is essentially continuous. IF this is the case, and you are willing to give up (or at least forego) this fine-grained indexing, there is a way in PGGB (look for combine.json in the manual) to combine multiple short tracks into one longer track that can get the benefit of a longer filter.


    I have posted about this previously here: https://audiophilestyle.com/forums/topic/62699-a-toast-to-pggb-a-heady-brew-of-math-and-magic/?do=findComment&comment=1132878

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