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Old 28th January 2016, 11:21 AM   #31
marce is offline marce  United Kingdom
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Join Date: Jun 2007
Location: Blackburn, Lancs
Want to build a music server
That my main problem, I cant program so it limits my choices.
I am and have been thinking of a all in one (to an extent) project for a long while... So many choices.
But some of the ideas here do appeal to me.
Qui...
Sadly Daevid Allen passed away last year.
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Old 28th January 2016, 03:13 PM   #32
Eldam is offline Eldam  France
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About the mini Pi like servers/players and layout :

You should have a look at the pretty good enough Odroid C1+

Most of the plug&play Linux Distro (Volumio 1.5; maybe the comming Volumio 2 ; RuneAudio are working good on it ; there is a lot of support on it on forum now !)

The Odroid C1+ as an I2S 5 pins plug direct from the IC ; unfornatuly the gnd pin is standalone and the 3 I2S lines are folowing each others (last pin is + 5V). So you have a way to do a little IC/plug with uf-l connections : the pin plug has just 2 cm of traces before the IC ! so short (dunno where is the gnd pin on the IC !)

RasberryPi has an I2S on the 40 pins plugs and there is a gnd pin near each of it ! IanCanada sells a plug with a little board with uf-l connectors.

So there is a way to match the impedance ! And with the external LiPo cells phones which are 5V most of the time you have an economical way not to inject noise when supplying them.

I assume you has a look an the excellent work of IanCanada : it's isolator boards makes isolation after a fifo and he reclock with very quiet clock board (mine is feeded with LiPoFe4 which noise floor is the lowest of avaliable cells with long life : A123 brand seems the best due to some "brevets")

For the dac chip, you should have a look at some AK... they have already programmed module as well : so compact layout with sota supply are possible ! I know you will not agree but each time it's possible I would bet for PPS smd caps instead X7R or even NPO class 1 ; despite the bigger esl due to the bigger size, I don't know at scope but on dac chips I can hear a difference with a low 0.1 uF ! Don't hit me please .

Be carefull with SqueezeBox server on a PC : the last supported by Logitech ressample all no pure 16/44, so all above that, at 24/96 ! Noi sport ! Most distro above play what they see (but can't play more than 192 K Hz because their layout ! Frankly most of us don't hear difference between 24/192 and 24/384 oversampled. Which is good with the distro above (there are some other like Moode Audio, etc) is you can from a GUI choose your oversampling on the fly if you want : for me who has most red book 16/44 in my Library, it's magic !

So you can certainly start from a cheap server with an I2S IC output pluged (IanCanada one being already made for RasberryPi or BananaPI -with this last compatibel you have in plus a plug for sata 2.5 hard drive : true server, no DNLA needed : the nano pc is both server & player with better management than the USB plug you can use for a wifi usb key e.g. ... no cat5/6 wire... what about wifi and EMC ? you know, I don't ! )

So for me the sport remains : doing a sota dac with sota clock, sota PS, sota isolation from the nano-Pi pc.... sound signature being just the analog stage after the dac chip ! last AK seems to beat the last ESS chips...

But no good dac without sota dac chip output... the analog part even most even the engineers without experience miss (viewing more the scope than listening lso with ears : don't shoot me again ! )!

DSP are also interresant, and I'm sure some will pm you if programmation is needed ! But this is an other story !

I'm sure this post is not OT and will inform some readers... If the little pc boards are good most of the time the little dac they putt on it is not good enough (in fact it's good for the price : good QP) for us fanatics here, despite it uses the I2S connection ! Because powersupply is bad and is coming from the mother board, layout as well, parts, etc .

Now you have excellent USB cart with isolator chip like the one of Lucian : Wave I/O (it has a little jitter but very little); it has also an output non isolated on uf-l ! Putt Daphile on your PC and you have a clone of your squeezeBox soft ! Putt your dac with uf-l inputt.... and you have already a 9/10 DAC on the scale of the DAC !

Me choosig the BanaPi with Ian I2S plug... but if some one want to do an I2S plug with uf-l on it, for the better Odroid C1+ like IanCanada made for the Pi/Banana (less electrical noise on the Odroid c1+ because better layout than the Pi !.... there are also some good but much expensive boards : cubitrucks, etc)

Last edited by Eldam; 28th January 2016 at 03:20 PM.
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Old 29th January 2016, 09:14 AM   #33
marce is offline marce  United Kingdom
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Join Date: Jun 2007
Location: Blackburn, Lancs
Want to build a music server
Thanks for the detailed reply, I will digest it later today
I don't remember what version of SB server I am using, its not the last one they released I believe. The music server has no keyboard, mouse or monitor, I will have to hook it up and have a look.
Cheers.
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Old 29th January 2016, 09:09 PM   #34
jplesset is offline jplesset  United States
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As for most of what we've all been talking about, "programming" is never a requirement. The software already exists and in many cases is available for free. Personally, I don't do any programming at all, but have set up MPD to run my system on three different systems, and I'm close to having an Orange Pi Plus ready to install. More of a task than I expected, but progressing nicely.
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Old 31st January 2016, 01:29 PM   #35
Herb S is offline Herb S  United States
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Location: Cumming, Ga
Thanks guys for all the input. I am still concerned about all the tweeks especially a linear PS but think this is primarily for playback. Like Marce says, "bits are bits." Dropouts are a concern on recording if the Op system "Windows" is interrupted. Thus I think I will start with Daphile/Linux on my desktop to download my CD's on to an external dedicated HD (FLAC files). I'll playback from here with my USB DAC for awhile and if satisfied will move permanently to a NUC which I hope will read the previously recorded music from the HD. Am I on the right track?
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Old 1st February 2016, 09:48 AM   #36
Eldam is offline Eldam  France
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If your laptop is a Windows, yes you can go for Daphile and can choose to boot it from an usb key to avoid to install it on your laptop : read the Daphile site... But your usb dac has to be tied to ... an usb key plug on your laptop ! If no dedicated pc for your hifi system, the less expensive is a BananaPi with a sata disk + the dedicated wire between the two or a RasverryPi/Odroid C1+ with a usb HDD. Some distro uses also DNLA and you can plug a HDD on your Internet provider Box if this Box is DNLA compatible and have a dedicated USB for plugin a HDD disk. Of course if you have a network HDD (like a NAS e.g.) compatible DNLA, you can plug this network disk via RJ45 plug to the provider box (with a network cable cat 5 or 6).

Up to you to choose the system in relation to the wallet you have and the ergonomic options you want. As far quality sound is a concern, because of driver, the best is to avoid Windows ! But before to be able to listen the difference, one must have already a very good Hifi system and very good DAC...

regards

All music server distro but Apples' plays .flac (while AUdirvana 2 is now flac compatible if you want to pay you a Mac for some reasons...)

Last edited by Eldam; 1st February 2016 at 10:02 AM.
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Old 18th December 2017, 10:41 AM   #37
makoz is offline makoz
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Hi everybody,

Have you ever tried to install Daphile on orange pi? Do you think could it be possible just to implement a client-player connected to a DAC?

Many thanks in advance
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Old 18th December 2017, 03:20 PM   #38
phofman is offline phofman  Czech Republic
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No, daphile is x86, orange pi is ARM
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Old 18th December 2017, 03:26 PM   #39
makoz is offline makoz
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Join Date: Dec 2017
Quote:
Originally Posted by phofman View Post
No, daphile is x86, orange pi is ARM
ah OK! thanks

I'm looking for a low power (5v) x86 Daphile-compatible machine, equipped with USB and 1 Gb ethernet, that could serve as client and be powered with a linear PSU.

5v probably could limit noise generated by internal switches that converts 19v to 5-12v of ordinary thin clients..

any suggestion?
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Old 18th December 2017, 04:02 PM   #40
phofman is offline phofman  Czech Republic
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Most internal circuitry uses <= 3.3V, the most consuming ones (CPU, memory) about 1.5V. 5V power supply will spare virtually no onboard power supplies as 5V is not widely used in thin clients circuitry.

I have great experience with refurbished x86 thin clients from FS (FS Futro) and HP. Also Dell makes these. They cost between 10 and 50 EUR incl. >=1GB RAM, >=1GB CF card/mSATA, quality power adapter. Some come with PCI slots, some with PCI-e slots. They usually sport at least one native SATA/mSATA port, 6 USB ports, gigabit ethernet, VGA/DVI/DP, etc. Great reviews are at Repurposing Thin Clients .

Of course they do not have enough CPU power to run up-conversion from PCM to DSDxxx which has become a fashion recently. For plain PCM/DSD playback they are fully sufficient.
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