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Raspberry Pi on a Mega Audiophile System

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Hilton:
BTW the Bricasti M1 DAC has many different filter settings that we flipped through and they have a marked effect on the sound, with filters to remove digital pre-ringing etc. It really is a lovely piece of kit.

"The Filter button allows for 9 different types of Linear Phase digital over sampling filters labeled Linear 0-8 with 6 Minimum Phase filters labeled Minimum 0-5. By simply pressing the filter button, the rotary control will allow rapid changes of the filters for easy sonic comparisons. The M1 uses delta sigma 8 X over sampling conversion. 3 DSD filters labeled 0, 1 and 2 are also delivered with the M1"

blgentry:

--- Quote from: Hilton on December 08, 2015, 04:12:24 pm ---The mini was running a different program though, not sure which one but either Audiovana plus, Pure Music or Amarra - I'll ask and find out. (I think it was Audivana Plus)
--- End quote ---

There's a thread on Head-fi that I monitor talking about media players for OSX.  I started posting there to tell people how good JRiver is, since it doesn't seem to get a lot of attention on OSX for some reason.  There are a small group of posters there that insist that Amara and Audirvana Plus sound better than anything else.  It just makes no sense to me, but that's what they continue to say.  I tried Audirvana on my system briefly, but I didn't do any controlled testing.  It sounded just as good as JRiver (anecdotally), but it's so "low powered" compared to MC that I just couldn't keep using it.

Brian.

JimH:
How about a link to the thread? 

Thanks.

Hilton:
Some people prefer the sound of Audirvana Plus because they like the effect of the Izotope resampling filters compared with just straight OSX Core audio.
They certainly have a lot more granularity and control over the resampling with Izotope than we get with native resampling in JRiver.

Also their "Direct Mode" and "Integer Mode" which effectively replaces some low-level core audio driver stuff with their own driver. Some DACs wont work with "their" driver, in fact many DACS that have their own manufacturers DAC drivers wont work in Direct Mode.

Personally I think its a good "sounding" player but they seem to have a lot more problems getting DACs to work without clicks and pops and making the iTunes integration play nicely than I would care to deal with. (and I also strongly dislike iTunes)

JRiver has far better library management and overall DSP management, (plus zones) and anecdotally (and in my experience) it works more reliably with a broad range of DACS.

I haven't really looked into it but I guess we could apply DSP filters in JRiver to similar affect if we wanted too.



Hilton:
I found some filter VST DSP plugins that have oversampling, dithering and linear/natural/zero Phase settings which work in DSP studio.

Interesting effects.

Download the 32bit VST filters. (of course this doesn't help our Linux/Mac cousins.)
http://www.fabfilter.com/products/

Oversampling, Dither and Noise Shaping

fabfilter1 by Hilton, on Flickr

Phase
fabfilter2 by Hilton, on Flickr







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