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-   -   USB Output (i2s?) (http://www.diyaudio.com/forums/digital-line-level/211590-usb-output-i2s.html)

dpaws 26th April 2012 04:40 PM

USB Output (i2s?)
 
Guys... Sorry, I'm a newbie to this field so please forgive any daft questions! I am considering buying a B&O media player but the media player does not have a digital output (duh!!)

Whilst one option is to try and physically tap into the i2s stream, I can't help but notice the two USB ports on the player, both at present designed to feed the system with music files via hard drive or USB stick.

Would it be impossibly complicated to reprogram the device to output audio on one of the USB ports?

I'd very much appreciate it if someone could point me in the direction of a man who maybe could... or at least who could tell me why not...

Very much obliged...

kevinkr 26th April 2012 05:31 PM

A compact PC with the right media player software IMO is probably a far better solution than this box. :D (Both Linux and Windows are an option)

dpaws 26th April 2012 09:14 PM

Thanks but...
 
I wish to avoid the classic PC environment due to the PSU noise issues (fans, hard drives, DC : DC converters) which impact on clock accuracy and jitter...

kevinkr 26th April 2012 09:59 PM

I understand your concern, but an outboard USB asychronous dac or digital interface like the Stello U3 should take care of those concerns pretty efficiently. (I'm using a Stello U3 and find it works very well, and provides galvanic isolation between the USB device and the DAC.)

I'm not sure that you can assume that the B&O media player is any better WRT to these issues without studying its electrical design and implementation very closely.

I have a Sony SCD-777ES and a Shigaclone.. I find the media server driving the Stello U3 connected via spdif to my diy DAC sounds far better than the other sources.

Just my experience, it is also very versatile and will play DSD, FLAC, AIFF, and just about any other format you could think of.

SoNic_real_one 26th April 2012 11:09 PM

I have looked to that B&O Media Player. "MUSIC FORMATS SUPPORTED: WMA, MP3, WAV, AAC"
Really? No FLAC? No SPDIF out? Why would anybody buy that POS? There are numerous media player that do better than that for far less money.

dpaws 27th April 2012 06:21 AM

Yes, it's certainly not an obvious choice... (although it does support flac to 24/96).

The reason for the interest is the MOTS random playlist / jukebox facility as I already have the Transporter which is excellent for listening to specific tracks... (Wow, wasn't that player years ahead of its time, well done Sean Adams!)

I concede the digital out is a challenge... as is the insistence on using 5GHz wireless - someone at B&O needs to step out into the real world to understand what the consumer really wants!

Kjeldsen 27th April 2012 07:20 AM

Quote:

Originally Posted by dpaws (Post 3002224)
I wish to avoid the classic PC environment due to the PSU noise issues (fans, hard drives, DC : DC converters) which impact on clock accuracy and jitter...

Try and have a look at what is on the market today. It's easy to overcome the above and, at a reasonable price too.

Cheap asus eeebox, better and more expensive HFX media center

dpaws 27th April 2012 07:29 AM

I have also owned the Sooloos Control 15, I have a Mac Mini, a Transporter, a Touch etc so I'm not short of options (the Aurender is another) - but there are no other players that have the MOTS track selection.

For serious listening I'm happy with the Transporter - I'm seeking a casual listening option that is very family / guest friendly so styling aesthetics play a part too...

Kjeldsen 27th April 2012 10:15 AM

I think this is similar, or at least somewhat the same idea. I don't use this sort of plugins so I haven't tried it.
From Winamp to Foobar2000: Winamp Playlist Generator / Play tracks similar to

I admit that the above is not userfriendly, and that's why B&O have done something right.

marce 27th April 2012 04:34 PM

The B&O media player is basicly a PC in a box, you are still going to have digital noise in any digital system, that is the nature of digital circuitry, if the SMPS's are well designed they are not that noisy, but the digital cuircitry switching is. Galvonic Isolation as near to the DAC as possible is the only way to isolate most of the digital noise if it worries you.


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